July weather forecast
L'Islet, Guernsey

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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. Combined with near-constant daylight extending up to 15.8 hours, July weather facilitates an active outdoor lifestyle. The month embodies temperate summer characteristics, making it the season's highlight.

Temperature

At the start of July, L'Islet's average high-temperature reaches a still refreshing 16.9°C (62.4°F), subtly different from the preceding month. In L'Islet, July's low temperatures hover around a still refreshing 15.1°C (59.2°F), reflecting a minor decrease from the daytime highs.

Humidity

The months with the highest humidity are June and July, with an average relative humidity of 84%.

Rainfall

July is the month with the least rainfall. Rain falls for 12.9 days and accumulates 26mm (1.02") of precipitation.

Snowfall

In L'Islet, snow does not fall in February through December.

Daylight

In July, the average length of the day in L'Islet is 15h and 47min.
On the first day of July, sunrise is at 05:08 and sunset at 21:20. On the last day of the month, sunrise is at 05:40 and sunset at 20:52 BST.

Sunshine

With an average of 9.5h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index in L'Islet are July through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 in July converts into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Around midday, solar radiation is most harmful; hence, exposure should be limited. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 9, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are the temperatures in L'Islet in July?

In L'Islet, 16.9°C (62.4°F) is the average high-temperature and 15.1°C (59.2°F) is the average low-temperature during July.

What are the most humid months in L'Islet?

The months with the highest humidity in L'Islet, Guernsey, are June and July, with an average relative humidity of 84%.

What is the average humidity in July in L'Islet?

In L'Islet, Guernsey, the average relative humidity in July is 84%.

What is the driest month in L'Islet?

July is the month with the least rainfall in L'Islet, Guernsey. Rain falls for 12.9 days and accumulates 26mm (1.02") of precipitation.

How many days does it rain in July in L'Islet?

In L'Islet, in July, during 12.9 rainfall days, 26mm (1.02") of precipitation is typically accumulated.

When it does not snow in L'Islet?

In L'Islet, Guernsey, snow does not fall in February through December.

How many hours of daylight does L'Islet have in July?

In July, the average day length is 15h and 47min.

When are sunrise and sunset in July in L'Islet?

In July, on the first day of the month, sunrise is at 05:08 and sunset at 21:20. On the last day of the month, in L'Islet, Guernsey, sunrise is at 05:40 and sunset at 20:52 BST.

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.

How many hours of sunshine does L'Islet have in July?

In July, the average sunshine duration is 9.5h.

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, Guernsey.

What is the UV index intensity in July in L'Islet?

In July, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in July
L'Islet, Guernsey

Average temperature in July - L
  • Average high temperature in July: 16.9°C

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).

  • Average low temperature in July: 15.1°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 in July
L'Islet, Guernsey

Average pressure in July - L
  • Average pressure in July: 1016.7mbar

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 in July
L'Islet, Guernsey

Average wind speed in July - L
  • Average wind speed in July: 21.9km/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 in July
L'Islet, Guernsey

Average humidity in July - L
  • Average humidity in July: 84%

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 in July
L'Islet, Guernsey

Average rainfall in July - L
  • Average rainfall in July: 26mm

The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is July (26mm).

Average rainfall days in July
L'Islet, Guernsey

Average rainfall days in July - L
  • Average rainfall days in July: 12.9 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 in July
L'Islet, Guernsey

Average snowfall in July - L
  • Average snowfall in July: 0mm

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 in July
L'Islet, Guernsey

Average snowfall days in July - L
  • Average snowfall days in July: 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 in July /
Average sunshine in July
L'Islet, Guernsey

Average daylight in July / Average sunshine in July - L
  • Average daylight in July: 15h and 5min

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 July: 9h and 3min

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 in July
L'Islet, Guernsey

Average sunshine days in July - L
  • Average sunshine days in July: 15.3 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 in July
L'Islet, Guernsey

Average UV index in July - L
  • Average UV index in July: 5

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 in July
L'Islet, Guernsey

Average cloud cover in July - L
  • Average cloud cover in July: 38

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 in July
L'Islet, Guernsey

Average visibility in July - L
  • Average visibility in July: 10km

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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