Climate Insights for Plérin

The climate in Plérin is temperate. The average annual temperature is 12°C and approximately 862mm of precipitation falls per year. Plérin receives a notable amount of rainfall throughout the year, including during its driest month. Plérin 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 February, January, March, when temperatures can drop to 5°C.

Plérin sees moderate temperature variation throughout the year, ranging from 5°C to 21°C. August is the warmest month, though highs remain moderate at 21°C with a mean of 17°C. February is the coolest month, with minimum temperatures around 5°C and an average of 8°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.

Plérin is a moderately rainy area, receiving approximately 862mm of precipitation annually, which averages out to around 72mm per month. The wettest month is October, averaging 108mm of rainfall. December and November also tend to see above-average precipitation. The driest month is July, with just 31mm. That's 77mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Plérin is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently summer in Plérin, which began on June 21, 2026. Plérin 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 21°C, while the coldest stretch bottoms out in February near 5°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Plérin 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 54mm per month. By contrast, February can be quite cold with temperatures dropping to 5°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 Plérin 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.