Castlebar Weather in June
What's the weather like in Castlebar (Connaught) in June 2025?
The climate in Castlebar during June can be summarized as mild and reasonably dry.
June is in the summer in Castlebar and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 9°C (47°F) is normal.
| Daytime temperature | 16.5°C 61.6°F |
|---|---|
| Nightly temperature | 8.6°C 47.4°F |
| Average temperature | 12.5°C 54.5°F |
| Daily sunshine | 5.4 hrs |
| Avg rainfall | 70 mm 2.8 ins |
| Rainy days | 17 days |
| Sea temperature | 13.3°C 55.9°F |
| Humidity | 83% |
| Windspeed | 17.3kph 11 mph |
On average June is the 3rd driest month of the year in Castlebar with around 70mm 2.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.4 hours of sunshine per day.
June temperatures in Castlebar
June rainfall
June hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Castlebar in June 2025.
Other monthly averages
Castlebar weather stats
| Hottest month: | July | 17.6°C 63.7°F |
|---|---|---|
| Driest month: | April | 66mm 2.6ins |
| Sunniest month: | May | 5.9hrs |
| Coldest month: | January | 7.3°C 45.1°F |
| Wettest month: | November | 134mm 5.3ins |
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