Plérin climate by month
What the weather is like
Plérin has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 22° and nights 13°. January is the coolest month, with highs of 9° and lows of 4°. The difference between the warmest and the coolest month is about 11°.
About 805 mm of precipitation falls in an average year. November is the wettest month (84 mm, 17 wet days) and September the driest (58 mm, 9 wet days). Cloud cover ranges from 34% in July to 50% in January.
The sea reaches about 18° in August. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Paris, the capital, Plérin is 3.8° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 22° · August
- Coldest nights
- 4° · February
- Wettest month
- November
- Driest month
- September
- Clearest skies
- July · 34% cloud
- Warmest sea
- 18° · August
- Longest day
- 16 h 06 min
- Shortest day
- 8 h 20 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 9° | 10° | 12° | 14° | 17° | 20° | 22° | 22° | 20° | 16° | 12° | 10° |
| Average low | 4° | 4° | 5° | 6° | 9° | 11° | 13° | 13° | 11° | 10° | 7° | 4° |
| Precipitation | 80 mm | 67 mm | 62 mm | 61 mm | 72 mm | 49 mm | 49 mm | 46 mm | 58 mm | 86 mm | 84 mm | 91 mm |
| Wet days (≥1 mm) | 17.1 | 14.2 | 13.1 | 9.8 | 10.7 | 9.6 | 10.2 | 10.4 | 8.9 | 15.1 | 17.4 | 16.4 |
| Cloud cover | 50% | 48% | 46% | 41% | 40% | 36% | 34% | 35% | 37% | 44% | 47% | 49% |
| Sea temperature | 10° | 9° | 9° | 10° | 12° | 14° | 16° | 18° | 18° | 16° | 14° | 12° |
| Daylight | 8h 44 | 10h 12 | 11h 50 | 13h 40 | 15h 13 | 16h 06 | 15h 45 | 14h 23 | 12h 38 | 10h 53 | 9h 14 | 8h 20 |
| Month score | 17 | 18 | 30 | 51 | 65 | 75 | 74 | 73 | 76 | 53 | 30 | 17 |