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Contents
- The climate of Clonmel
- The best time to visit Clonmel
- The worst time to visit Clonmel
- Spring weather in Clonmel
- Summer weather in Clonmel
- Autumn weather in Clonmel
- Winter weather in Clonmel
- 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 Clonmel
Clonmel, a city nestled in the heartland of Ireland, possesses a climate classified as Cfb according to the Köppen climate classification system. This means it experiences a Marine west coast climate with warm summers. A comprehensive review of the climatological data illustrates overarching weather patterns and distinct variations observed over the course of a year. Temperatures typically range from 1.5°C (34.7°F) during February to a high of 17.8°C (64°F) in July. Humidity levels remain relatively constant all year round, averaging between 86% to 92%, providing a typically damp environment synonymous with this region.
Throughout the year, the city encounters a rainfall range between 22mm (0.87") during March and September to a maximum of 45mm (1.77") in November. Over the course of the year, the number of rainfall days ranges from 10.7 days in January to as many as 18.6 days in July. Clonmel also experiences snowfall during the winter months, from 1mm (0.04") in November to up to 9mm (0.35") in January and 6mm (0.24") in December and February.
One unique climatic characteristic of Clonmel is the low visibility throughout the year, rarely exceeding 9km (5.6mi). The city is also notable for its consistent cloud cover, with cloud percentages varying slightly from 61% in April to 72% in July. Meanwhile, wind speeds are relatively steady all year round, achieving highest speeds of 19.4km/h (12.1mph) in December.
Throughout the year, the city encounters a rainfall range between 22mm (0.87") during March and September to a maximum of 45mm (1.77") in November. Over the course of the year, the number of rainfall days ranges from 10.7 days in January to as many as 18.6 days in July. Clonmel also experiences snowfall during the winter months, from 1mm (0.04") in November to up to 9mm (0.35") in January and 6mm (0.24") in December and February.
One unique climatic characteristic of Clonmel is the low visibility throughout the year, rarely exceeding 9km (5.6mi). The city is also notable for its consistent cloud cover, with cloud percentages varying slightly from 61% in April to 72% in July. Meanwhile, wind speeds are relatively steady all year round, achieving highest speeds of 19.4km/h (12.1mph) in December.
The best time to visit Clonmel
Considering the various climatic parameters, the optimal time to visit Clonmel would be during the summer months, from June to August. Not only does the city experience the highest average temperatures during this period, ranging from 14.1°C (57.4°F) to 17.8°C (64°F), but it also boasts the longest daylight hours, averaging between 15.8 hours to 16.7 hours. Although July sees the highest number of rainy days, the overall rainfall in summer is relatively moderate, averaging between 31mm (1.22") to 43mm (1.69"). With UV indices at 4, tourists are advised to carry sun protection during these months.
The worst time to visit Clonmel
The least favorable period for tourists would be the winter months, from December to February. These months see the lowest temperatures, from 1.9°C (35.4°F) to 1.5°C (34.7°F), and shortest daylight hours, from 7.8 hours to 8.3 hours. Although snowfall only ranges from 1mm (0.04") to 9mm (0.35"), the cold and damp can make the city less inviting to tourists.
Spring weather in Clonmel
Spring in Clonmel, characterized by months March through May, witnesses gradually rising temperatures, ranging from 1.8°C (35.2°F) to 5.6°C (42.1°F). Rainfall in this season varies from 22mm (0.87") in March to 24mm (0.94") in May, while daylight hours increase steadily from 11.9 hours to 15.8 hours. Therefore, tourists visiting during this season can expect longer daylight hours and relatively less rainfall.
Summer weather in Clonmel
Summer, extending from June through August, showcases the warmest temperatures, ranging from 14.1°C (57.4°F) to 17.8°C (64°F). Rainfall is moderate during this period, ranging from 31mm (1.22") in June and July to 43mm (1.69") in August. Sunshine hours are maximum, ranging between 5.1 hours to 5.6 hours, promising plenty of daylight for outdoor activities.
Autumn weather in Clonmel
Autumn, which includes September through November, showcases temperatures between 8.4°C (47.1°F) to 6.5°C (43.7°F). Rainfall increases, particularly in November with 45mm (1.77"). However, daylight hours begin to shorten, dropping from 12.7 hours in September to 8.8 hours in November. Therefore, visitors should plan accordingly.
Winter weather in Clonmel
Winter in Clonmel, spanning December through February, presents the coldest temperatures, from 1.9°C (35.4°F) in December to 1.5°C (34.7°F) in February. The season also witnesses the shortest daylight hours, from 7.8 hours in December to 8.3 hours in February. Snowfall is scant, ranging from 6mm (0.24") in December to 1mm (0.04") in February, making it a subdued winter season for snow enthusiasts.
Weather in January
An examination of weather patterns reveals that January's weather in Clonmel, Ireland, is characterized by high humidity levels and a relatively low average temperature. There's a noteworthy occurrence of snowfall reaching up to 9mm (0.35") during this month. Weather in January »
Weather in February
As Clonmel transitions into February from the coldest period of the year, the month brings mildly warmer temperature highs and lows. One distinct feature of February is the accelerated drop in snowfall to an average of 6mm (0.24") as winter starts to wane. Weather in February »
Weather in March
March holds the promise of awakening Spring with its rise in temperature and receding humidity levels in Clonmel. The eradication of snowfall by March signifies the official end of winter, as temperatures show a steady increase. Additionally, a shift in daylight and sunshine hours reflects the seasonal change. Weather in March »
Weather in April
April weather in Clonmel ushers in appreciable warmth as it contributes to the spring season's steady temperature rise. Registering an unusual amount of rainfall reaching up to 31mm (1.22") within the month, April happens to be a significantly wet month. Weather in April »
Weather in May
There is a sweeping change across Clonmel during May as the onset of summer traits become prominent. Key in May's weather is the absence of snowfall completely, promoting warmer and drier conditions. As May progresses, daylight and sunshine hours peak, creating more opportunities to soak in the summer's backlit Hawaiian glow. Weather in May »
Weather in June
June in Clonmel brings in the full swing of summer offering warmth, ample sunshine, and increased daylight hours. June holds record peak temperatures with a high hitting 16.7°C (62.1°F), marking it the start of the hottest period of the year. Weather in June »
Weather in July
July positions itself as the zenith of summer in Clonmel, presenting invitingly warm temperatures and abundant sunshine. July reaches the year's highest average temperature of 17.8°C (64°F), making it the warmest month. Concurrently, the frequency of rainfall slightly increases, adding a refreshing reprieve during the hot days. Weather in July »
Weather in August
August maintains the summer's heat in Clonmel but introduces a noticeable change in weather patterns. The slight downturn in temperature to an average of 17.4°C (63.3°F) from July's peak makes August considerably cooler. However, Clonmel's weather in August comprises high rainfall frequenting up to 37mm (1.46"), the year's most substantial rain showers. Weather in August »
Weather in September
In Clonmel, September marks the transition from the heat of summer to the soothing mildness of autumn. A distinct feature in September is a substantial dip in the average temperature, dropping to a cooler 15.7°C (60.3°F). The arrival of fall is echoed in the shortening daylight hours and an increase in cloud presence. Weather in September »
Weather in October
October invites the chill of autumn into Clonmel, bringing along greater cloud presence and frequent rainfall. Documenting an average rainfall measure of 28mm (1.1"), October stands as a significantly wetter month. Meanwhile, the noticeable decrease in temperature accompanies the onset of autumn, marking a stark contrast to September's mellow warmth. Weather in October »
Weather in November
November in Clonmel experiences the intensification of autumn with dropping temperatures and increasing rainfall days. The weather showcases a marked increase in rainfall to plenteous 45mm (1.77"), making it a notably wet month. Weather in November »
Weather in December
December closes the year in Clonmel by welcoming the full onset of winter, with significant decreases in temperature and daytime hours. The reappearance of snowfall, reaching 6mm (0.24"), indicates the beginning of the winter season. Weather in December »
Updated: Jan 27, 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
What are the coldest months in Clonmel?
Clonmel's coldest month, January, registers temperatures that range from a high of 7.1°C (44.8°F) to a low of 1.9°C (35.4°F).
What is the driest month in Clonmel?
January, March and September are months with the least rain when the rain falls for 10.7 days and typically aggregates up to 22mm (0.87") of rain.
How many days does it rain in Clonmel?
In Clonmel, Ireland, during the entire year, the rain falls for 162.7 days and collects up to 359mm (14.13") of precipitation.
When does it snow in Clonmel?
January through March, November and December are months with snowfall in Clonmel, Ireland.
When does it snow the most in Clonmel?
The month with the most snowfall is January, when snow falls for 1.3 days and typically aggregates up to 9mm (0.35") of snow.
How many days does it snow in Clonmel?
Throughout the year, in Clonmel, there are 5.2 snowfall days, and 26mm (1.02") of snow is accumulated.
What is the month with the lowest UV index in Clonmel?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Clonmel.
What is the least humid month in Clonmel?
The least humid month in Clonmel, Ireland, is April, with an average relative humidity of 86%.
When it does not snow in Clonmel?
April through October are months without snowfall in Clonmel, Ireland.
What is the month with the most sunshine in Clonmel?
April and June, with an average of 5.6h of sunshine, are months with the most sunshine.
When is the highest UV index in Clonmel?
The months with the highest UV index in Clonmel, Ireland, are May, June and August, with an average maximum UV index of 4.
When are the longest days in Clonmel?
The month with the longest days in Clonmel is June, with an average of 16h and 42min of daylight.
What part of the year is the hottest in Clonmel?
The warmest period in Clonmel, Ireland, tends to be July, when average temperatures fluctuate between a high of 17.8°C (64°F) and a low of 10.4°C (50.7°F).
When is Daylight Saving Time (DST) in Clonmel?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time starts in Clonmel, Ireland, and the time zone changes from IST to GMT. Daylight Saving Time ends on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to IST.
What are the most humid months in Clonmel?
November and December, with an average relative humidity of 92%, are most humid months in Clonmel.
What is the wettest month in Clonmel?
November is the month with the most rainfall. Rain falls for 11 days and accumulates 45mm (1.77") of precipitation.
What is the month with the least sunshine in Clonmel?
The month with the least sunshine in Clonmel is November, with an average of 3.7h of sunshine.
What is the month with the shortest days in Clonmel?
The month with the shortest days in Clonmel is December, with an average of 7h and 48min of daylight.
Average temperature
Clonmel, Ireland
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (7.1°C).
The month with the highest average low temperature is July (10.4°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average pressure
Clonmel, Ireland
- Average pressure in January:
1012mbar - Average pressure in February:
1011.5mbar - Average pressure in March:
1014.5mbar - Average pressure in April:
1014.7mbar - Average pressure in May:
1016.2mbar - Average pressure in June:
1015.6mbar
- Average pressure in July:
1014.4mbar - Average pressure in August:
1013.3mbar - Average pressure in September:
1015.8mbar - Average pressure in October:
1012.7mbar - Average pressure in November:
1008.6mbar - Average pressure in December:
1011.6mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.6mbar).
Average wind speed
Clonmel, Ireland
- Average wind speed in January:
17.9km/h - Average wind speed in February:
18.2km/h - Average wind speed in March:
16.2km/h - Average wind speed in April:
14.4km/h - Average wind speed in May:
14.1km/h - Average wind speed in June:
12.9km/h
- Average wind speed in July:
12.6km/h - Average wind speed in August:
13.5km/h - Average wind speed in September:
13.5km/h - Average wind speed in October:
14.5km/h - Average wind speed in November:
16.3km/h - Average wind speed in December:
17.9km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity
Clonmel, Ireland
The months with the highest relative humidity are November and December (92%).
The month with the lowest relative humidity is April (86%).
Average rainfall
Clonmel, Ireland
The wettest month (with the highest rainfall) is November (45mm).
The driest months (with the least rainfall) are January, March and September (22mm).
Average rainfall days
Clonmel, Ireland
- Average rainfall days in January:
10.7 days - Average rainfall days in February:
11.1 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
18.6 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
13 days - Average rainfall days in November:
11 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (10.7 days).
Average snowfall
Clonmel, Ireland
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Clonmel, Ireland
- Average snowfall days in January:
1.3 days - Average snowfall days in February:
1.4 days - Average snowfall days in March:
1.2 days - Average snowfall days in April:
0.1 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:
0.2 days - Average snowfall days in December:
1 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Clonmel, Ireland
- Average daylight in January:
8h and 2min - Average daylight in February:
9h and 5min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 0min - Average daylight in May:
15h and 5min - Average daylight in June:
16h and 4min
- Average daylight in July:
16h and 1min - Average daylight in August:
14h and 4min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
8h and 5min - Average daylight in December:
7h and 5min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
4h and 4min - Average sunshine in April:
5h and 4min - Average sunshine in May:
5h and 2min - Average sunshine in June:
5h and 4min
- Average sunshine in July:
5h and 1min - Average sunshine in August:
5h and 2min - Average sunshine in September:
5h and 2min - Average sunshine in October:
3h and 5min - Average sunshine in November:
3h and 4min - Average sunshine in December:
3h and 5min
The months with the most sunshine are April and June (Average sunshine: 5h and 36min).
The month with the least sunshine is November (Average sunshine: 3h and 42min).
Average sunshine days
Clonmel, Ireland
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
12.9 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
11 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
7.2 days - Average sunshine days in August:
9.8 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
16.7 days - Average sunshine days in December:
17.3 days
The month with the most sunshine days is December (17.3 days).
The month with the least sunshine days is July (7.2 days).
Average UV index
Clonmel, Ireland
The months with the highest UV index are May, June and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Clonmel, Ireland
The month with the most cloud cover is July (Cloud cover 72).
The month with the least cloud cover is April (Cloud cover 61).
Average visibility
Clonmel, Ireland
The month with the highest visibility is February (9km).
The months with the lowest visibility are July, August, September and October (7km).
Clonmel, Ireland
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