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Calais weather in August 2025
Expect 21°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Calais in August. Check more long-term weather averages for Calais in August before you book your next holiday to France in 2025/2026.
- 21°C max day temperature
21 - 7 hours of sunshine per day
- 12 days with some rainfall
12 - 13°C min night temperature
13 - 14 hours of daylight per day
14 - No heat & humidity
0 - 50 mm of monthly rainfall
50 - 6 (High) UV index
6 - 18°C sea temperature
18
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The August weather guide for France (Calais) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about France
How hot is it in Calais in August?
Daytime temperatures usually reach 21°C in Calais in August, falling to 13°C at night.
How sunny is it in Calais in August?
There are normally 7 hours of bright sunshine each day in Calais in August - that's 48% of daylight hours.
How warm is the sea around Calais in August?
The average sea temperature around Calais in August is 18°C.
Does it rain in Calais in August?
There are usually 12 days with some rain in Calais in August and the average monthly rainfall is 50mm.
Calais August sunrise & sunset times
Browse the sunrise and sunset times for Calais in August 2025. Select a month to view Calais sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 05:19 | 20:38 |
| Saturday, 16th August 2025 | 05:41 | 20:11 |
| Sunday, 31st August 2025 | 06:05 | 19:40 |
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