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Contents
- The climate of L'Islet
- The best time to visit L'Islet
- The worst time to visit L'Islet
- Spring weather in L'Islet
- Summer weather in L'Islet
- Autumn weather in L'Islet
- Winter weather in L'Islet
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of L'Islet
According to the Köppen climate classification, L'Islet in Guernsey predominantly experiences a Marine West Coast climate with a warm summer or Cfb type of weather. The geographical location of this place results in weather characterized by mild temperatures, noticeable humidity levels, and significant rainfall throughout the year.
Discussing the overall weather, a uniformity can be noticed as the highest temperature peaks at 17.8°C (64°F) in August while the lowest falls to 6.9°C (44.4°F) in February. The weather stays reasonably mild for the rest of the year. Humidity levels in L'Islet are fairly consistent, hovering between 77% and 84% throughout the year.
Rainfall in L'Islet is quite frequent, with the town experiencing a total of 160.6 days of precipitation per year. December receives the highest rainfall at 78mm (3.07"), while the least amount falls in July, totalling at 26mm (1.02"). On the other hand, snowfall appears to be almost non-existent in L'Islet, with only 2mm (0.08") of snowfall recorded in January.
Following the pattern of daylight hours, it can be noted that June provides the longest span of daylight, with 16.2 hours on average, while December limits the daylight to an average of 8.3 hours. Sunshine hours follow a similar trend. The maximum amount is 9.5 hours in July, while the shortest duration is from January to February with an average of 3.9 hours.
Discussing the overall weather, a uniformity can be noticed as the highest temperature peaks at 17.8°C (64°F) in August while the lowest falls to 6.9°C (44.4°F) in February. The weather stays reasonably mild for the rest of the year. Humidity levels in L'Islet are fairly consistent, hovering between 77% and 84% throughout the year.
Rainfall in L'Islet is quite frequent, with the town experiencing a total of 160.6 days of precipitation per year. December receives the highest rainfall at 78mm (3.07"), while the least amount falls in July, totalling at 26mm (1.02"). On the other hand, snowfall appears to be almost non-existent in L'Islet, with only 2mm (0.08") of snowfall recorded in January.
Following the pattern of daylight hours, it can be noted that June provides the longest span of daylight, with 16.2 hours on average, while December limits the daylight to an average of 8.3 hours. Sunshine hours follow a similar trend. The maximum amount is 9.5 hours in July, while the shortest duration is from January to February with an average of 3.9 hours.
The best time to visit L'Islet
Considering the mild temperature, frequent rainfall, and consistent humidity levels, the best time to visit L'Islet would be during the summer months, from June to August. During this time, the temperatures range from 15.2°C (59.4°F) to 17.8°C (64°F), making it suitable for outdoor activities. The amount of sunlight received is also at its peak, averaging between 9 and 9.5 hours per day, thereby ensuring longer daylight hours for travel and exploration.
The worst time to visit L'Islet
It would be less ideal to visit L'Islet during the winter months, from December through February. The weather is colder during these months, with temperatures ranging from 9.2°C (48.6°F) to 9.8°C (49.6°F). Additionally, the amount of rainfall is also at its highest during these months, particularly in December with a rainfall of 78mm (3.07"). The levels of daylight and sunshine during these months are lowest as well, potentially restricting outdoor and sightseeing activities.
Spring weather in L'Islet
Spring, encompassing the months from March through May, in L'Islet is characterized by mild temperatures. The temperature during these months ranges from 9.8°C (49.6°F) to 12.8°C (55°F). Rainfall is moderate, particularly when compared to the winter months, with the averages ranging from 28mm (1.1") to 38mm (1.5"). Considerably more daylight becomes available during this season, with an average of between 11.9 hours to 15.4 hours per day.
Summer weather in L'Islet
The summer months from June to August in L'Islet present comfortable weather conditions. The temperatures stay mild, between 15.2°C (59.4°F) and 17.8°C (64°F). Although rainfall is present, figures during this season still remain significantly lower than in the winter months, averaging from 26mm (1.02") to 41mm (1.61"). Along with this, L'Islet enjoys the longest span of daylight and sunshine, providing plenty of opportunity to enjoy the outdoors.
Autumn weather in L'Islet
Moving into Autumn, the months from September to November, L'Islet experiences a slight drop in temperatures, which range from 13.2°C (55.8°F) to 17.3°C (63.1°F). Rainfall also increases during this period, particularly in November, which witnesses an average of 78mm (3.07"). Daylight hours also decrease, with an average ranging from 9.1 to 12.6 hours per day.
Winter weather in L'Islet
Winter in L'Islet, lasting from December through February, is characterised by cooler temperatures, more rainfall, and reduced daylight hours. Winter temperatures range from 9.2°C (48.6°F) to 9.8°C (49.6°F). These months also receive the highest amount of rainfall, with December accounting for the highest total of 78mm (3.07"). Daylight hours reach their annual minimum in December, averaging at 8.3 hours per day.
Weather in January
January in L'Islet, Guernsey presents a winter tableau that is damp instead of frigid. Despite the low sun hours at 3.9 hours per day, daylight extends to a pleasant 8.7 hours. An earlier sunset, however, contributes to the chill, with temperatures ranging from 7.5°C (45.5°F) at night to 9.8°C (49.6°F) at peak of day. Weather in January »
Weather in February
As L'Islet navigates through February, the shorter winter days start giving way to early signs of spring. Daylight hours increase slightly, with sunlight duration on the increase as well. Vestiges of winter linger in the frequent showers, although rainfall reduces significantly from 63mm (2.48") in January to 51mm (2.01") this month. Weather in February »
Weather in March
Shifting gears into March, L'Islet experiences a more pronounced transition into spring. January's brisk winds give way to a more manageable average speed of 30.3km/h (18.8mph) in this period. The differences between day and night temperatures narrow, signifying stable weather patterns. Weather in March »
Weather in April
The weather in April exhibits an embracing warmth in L'Islet, Guernsey with an influx in sunlight hours. With daylight stretching from 13.8 hours from the previous 11.9 hours, residents enjoy longer days. Anticipating summer, the temperature climbs up to 11°C (51.8°F) at peak of the day, a significant elevation from March's high of 9.8°C (49.6°F). Weather in April »
Weather in May
Moderate conditions define May, with an average high temperature of 12.8°C (55°F) and low of 10.5°C (50.9°F) gracing L'Islet. Daylight hours further expand, reaching 15.4 hours, a gentle increase from April's 13.8 hours. Striking a balance between temperature and daylight duration, May encapsulates the serenity of late spring and pre-summer. Weather in May »
Weather in June
June sees warmer daytime temperatures of 15.2°C (59.4°F), while the nights remain comfortably cool at 13°C (55.4°F) in L'Islet, Guenrnsey. Daylight extends its reach to 16.2 hours, contributing to the extended warmth. Winds incorporate a mild coolness, fostering an ideally balanced combination of warmth and chill. Weather in June »
Weather in July
July brings L'Islet, Guernsey into the heart of summer. Amidst the sizzling season, temperatures peak at a moderate 16.9°C (62.4°F), while nights cool down to 15.1°C (59.2°F). Impressively, even in the summer's pinnacle, temperatures remain manageable and winds settle into a gentle, soothing rhythm. Weather in July »
Weather in August
In August, the air in L'Islet maintains summer warmth but hints at the forthcoming fall. The longest daylight duration of the year subsides from 15.8 hours in July to 14.4 hours. However, temperatures peak to their highest for the year at 17.8°C (64°F), before tapering downward as the month progresses. Weather in August »
Weather in September
September transitions L'Islet, Guernsey into the embrace of autumn. Temperatures exhibit a downward trend throughout September, with a high of 17.3°C (63.1°F) and a low of 14.9°C (58.8°F). The winds are also characteristically gentler, dropping from August's 22.8km/h (14.2mph) to 25.7km/h (16mph). Weather in September »
Weather in October
October in L'Islet, Guernsey reflects the true essence of fall with a distinct chill in the air as temperatures drop to between 13.4°C (56.1°F) and 15.4°C (59.7°F). The daylight recedes to 10.8 hours, a significant reduction from September's 12.6 hours. Weather in October »
Weather in November
November transitions L'Islet, Guernsey steadily towards winter with greater wind speeds crossing 35km/h (21.7mph) and temperatures dropping to between 11°C (51.8°F) and 13.2°C (55.8°F). Daylight decreases significantly, pulling back to a scant 9.1 hours, painting a somber, wintry picture. Weather in November »
Weather in December
December solidifies winter's grip with temperatures hovering between 9.2°C (48.6°F) and 11.1°C (52°F) and a typical 8.3 hours of daylight in L'Islet, Guernsey. The season's character is further defined with long nights and the year's heaviest rainfall, peaking at 59mm (2.32"). Weather in December »
Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How many days does it rain in L'Islet?
Throughout the year, in L'Islet, Guernsey, there are 195.6 rainfall days, and 554mm (21.81") of precipitation is accumulated.
When does it snow in L'Islet?
The only month with snowfall in L'Islet is January.
What is the snowiest month in L'Islet?
January is the month with the most snowfall. Snow falls for 0.3 days and accumulates 2mm (0.08") of snow.
How many days does it snow in L'Islet?
Throughout the year, in L'Islet, Guernsey, there are 0.5 snowfall days, and 2mm (0.08") of snow is accumulated.
What time of the year is the coldest in L'Islet?
In L'Islet, February registers the lowest temperatures, averaging 9.2°C (48.6°F) at the peak and 6.9°C (44.4°F) at the lowest.
When it does not snow in L'Islet?
February through December are months without snowfall.
When is the lowest UV index in L'Islet?
The month with the lowest UV index is February, with an average maximum UV index of 2.
What are the most humid months in L'Islet?
June and July, with an average relative humidity of 84%, are most humid months in L'Islet.
When are the longest days in L'Islet?
June has the longest days of the year in L'Islet, with an average of 16h and 12min of daylight.
What is the driest month in L'Islet?
July is the month with the least rainfall. Rain falls for 12.9 days and accumulates 26mm (1.02") of precipitation.
What month has the most sunshine in L'Islet?
With an average of 9.5h of sunshine, July has the most sunshine of the year in L'Islet.
When is the highest UV index in L'Islet?
July through September, with an average maximum UV index of 5, are months with the highest UV index in L'Islet.
What are the warmest months in L'Islet?
In L'Islet, Guernsey, the peak temperatures are generally noted in August, averaging a high of 17.8°C (64°F) and a low of 15.7°C (60.3°F).
When is Daylight Saving Time (DST) in L'Islet?
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 01:00, and the time zone reverts from GMT to BST.
What are the least humid months in L'Islet?
November and December, with an average relative humidity of 77%, are the least humid months in L'Islet.
What is the wettest month in L'Islet?
The month with the most rainfall in L'Islet is November, when the rain falls for 22.5 days and typically aggregates up to 78mm (3.07") of precipitation.
What is the month with the shortest days in L'Islet?
December has the shortest days of the year in L'Islet, Guernsey, with an average of 8h and 12min of daylight.
What is the month with the least sunshine in L'Islet?
With an average of 3.8h of sunshine, December has the least sunshine of the year in L'Islet, Guernsey.
Average temperature
L'Islet, Guernsey
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is February (6.9°C).
Average pressure
L'Islet, Guernsey
- Average pressure in January:
1016.1mbar - Average pressure in February:
1015.2mbar - Average pressure in March:
1016.2mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1017.4mbar - Average pressure in June:
1016.9mbar
- Average pressure in July:
1016.7mbar - Average pressure in August:
1016.4mbar - Average pressure in September:
1017.9mbar - Average pressure in October:
1015.3mbar - Average pressure in November:
1011.5mbar - Average pressure in December:
1016.6mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed
L'Islet, Guernsey
- Average wind speed in January:
34.1km/h - Average wind speed in February:
34km/h - Average wind speed in March:
30.3km/h - Average wind speed in April:
25km/h - Average wind speed in May:
23.7km/h - Average wind speed in June:
22.8km/h
- Average wind speed in July:
21.9km/h - Average wind speed in August:
22.8km/h - Average wind speed in September:
25.7km/h - Average wind speed in October:
29.7km/h - Average wind speed in November:
35km/h - Average wind speed in December:
36km/h
The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).
Average humidity
L'Islet, Guernsey
The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).
Average rainfall
L'Islet, Guernsey
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is July (26mm).
Average rainfall days
L'Islet, Guernsey
- Average rainfall days in January:
22 days - Average rainfall days in February:
17.7 days - Average rainfall days in March:
17 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
11.9 days - Average rainfall days in June:
11.4 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
13.6 days - Average rainfall days in October:
18.5 days - Average rainfall days in November:
22.5 days - Average rainfall days in December:
20.5 days
The month with the highest number of rainy days is November (22.5 days).
The month with the least rainy days is June (11.4 days).
Average snowfall
L'Islet, Guernsey
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
L'Islet, Guernsey
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0.2 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
L'Islet, Guernsey
- Average daylight in January:
8h and 4min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 1min
- Average daylight in July:
15h and 5min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 1min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 3min - Average sunshine in August:
9h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
4h and 5min - Average sunshine in November:
3h and 5min - Average sunshine in December:
3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days
L'Islet, Guernsey
- Average sunshine days in January:
5.5 days - Average sunshine days in February:
6.9 days - Average sunshine days in March:
10.7 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
16.3 days - Average sunshine days in June:
16.1 days
- Average sunshine days in July:
15.3 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
13.3 days - Average sunshine days in October:
8.7 days - Average sunshine days in November:
4.2 days - Average sunshine days in December:
5.7 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4.2 days).
Average UV index
L'Islet, Guernsey
The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover
L'Islet, Guernsey
The months with the most cloud cover are January, November and December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility
L'Islet, Guernsey
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
L'Islet, Guernsey
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