Climate Insights for Plougastel-Daoulas

The climate in Plougastel-Daoulas is temperate. The average annual temperature is 12°C and approximately 1151mm of precipitation falls per year. Plougastel-Daoulas receives a notable amount of rainfall throughout the year, including during its driest month. Plougastel-Daoulas is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 6°C.

Plougastel-Daoulas sees moderate temperature variation throughout the year, ranging from 6°C to 20°C. August is the warmest month, though highs remain moderate at 20°C with a mean of 17°C. January is the coolest month, with minimum temperatures around 6°C and an average of 8°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.

Plougastel-Daoulas is a moderately rainy area, receiving approximately 1151mm of precipitation annually, which averages out to around 96mm per month. The wettest month is December, averaging 155mm of rainfall. January and November also tend to see above-average precipitation. The driest month is July, with just 58mm. That's 98mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Plougastel-Daoulas is mildly breezy, with an average annual wind speed of 20km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 24km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 23km/h in winter, 19km/h in spring, 16km/h in summer, 20km/h in autumn.

It is currently autumn in Plougastel-Daoulas, which began on September 23, 2026. Plougastel-Daoulas is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 20°C, while the coldest stretch bottoms out in January near 6°C. Winter is next, beginning on December 21, 2026 (88 days from now).

The best time to visit Plougastel-Daoulas is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 66mm per month. By contrast, January can be quite cold with temperatures dropping to 6°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Plougastel-Daoulas based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.