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Waterville Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Waterville.
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10-day forecastForecast
Climate overview of Waterville
The climate in Waterville, Kerry, Ireland, sees a moderate range of temperatures across the year, from 18°C (64°F) in August down to 10°C (50°F) in January.
The city has a wet climate, receiving around 1550 mm (61 in) of rainfall per year. December is the wettest month. Sunshine peaks in May, when the city sees around 6.0 hours of sunshine per day.
Waterville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Waterville - and find the best time to visit.
Monthly Temperature in Waterville
The weather in Waterville changes moderately throughout the year, offering enough variation to appreciate each season. On average, daytime temperatures range from a pleasant 18°C (64°F) in August to a chilly 10°C (50°F) in January.
Nighttime temperatures range from 13°C (55°F) in August to 6°C (43°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Waterville
Waterville experiences significant rainfall throughout the year, averaging 1550 mm (61 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 173 mm (6.8 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, June, still receives a respectable 98 mm (3.9 in) of rainfall. For more details, please visit our Waterville Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Waterville
In Waterville, summer days are longer and more sunny, with daily sunshine hours peaking at 6.0 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Valentia, Ireland (12 KM, 7 Miles).
Daily hours of sunshine
Data from: Valentia, Ireland (12 KM, 7 Miles).
Daily percentage of sunshine
Data from: Valentia, Ireland (12 KM, 7 Miles).
Water Temperature in Waterville
The mean water temperature over the year ranges from 9°C (48°F) in March to 15°C (59°F) in July.
Water temperature over the year
Data from: Valentia, Ireland (12 KM, 7 Miles).
Humidity in Waterville by Month
The relative humidity is high throughout the year in Waterville.
The city experiences its highest humidity in July, reaching 80%. In April, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Valentia, Ireland (12 KM, 7 Miles).
Wind Speed in Waterville
The mean wind speed varies between 4 m/s (8 knots) and 6 m/s (12 knots) throughout the year. It is lowest in June, July and August and highest during January, February, March, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Data from: Valentia, Ireland (12 KM, 7 Miles).
Best Time to Visit Waterville
For the most comfortable conditions available during the year, consider visiting Waterville in May, June, July and August. Conditions are usually least comfortable in January, February, March, April, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
wet
Feb
wet
Mar
wet
Apr
wet
May
good
Jun
good
Jul
good
Aug
good
Sep
mixed
Oct
mixed
Nov
wet
Dec
wet
- Best overall: May, June, July and August
- Warmest weather: June, July, August and September
- Most sunshine: May
- Fewest rainy days: April, May, June and July
Frequently asked questions about the climate in Waterville
What is the best time to visit Waterville?
May, June, July and August typically offer the most optimal weather in Waterville. In contrast, January, February, March, April, November and December tend to have less optimal conditions.
What temperatures can I expect in Waterville?
Daytime highs range from 10°C (50°F) in January to 18°C (64°F) in August. Nighttime lows range from 6°C (43°F) to 13°C (55°F).
How much rain does Waterville get?
Annual rainfall is around 1550 mm (61 in). December is the wettest month with 173 mm (6.8 in), while June is the driest with 98 mm (3.9 in).
How sunny is Waterville?
Waterville receives around 1,268 hours of sunshine per year. May is the sunniest month with 180 hours, while December is the cloudiest with just 40 hours.
Waterville 3-Day Forecast
Waterville on the map
Waterville is highlighted - select any city to see its climate.
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