Trignac climate by month
What the weather is like
Trignac has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 25° and nights 15°. January is the coolest month, with highs of 10° and lows of 4°. The difference between the warmest and the coolest month is about 13°.
About 759 mm of precipitation falls in an average year. January is the wettest month (79 mm, 14 wet days) and September the driest (62 mm, 7 wet days). Cloud cover ranges from 30% in August to 47% in January.
The sea reaches about 19° 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, Trignac is 1.3° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 25° · August
- Coldest nights
- 4° · February
- Wettest month
- January
- Driest month
- September
- Clearest skies
- August · 30% cloud
- Warmest sea
- 19° · August
- Longest day
- 15 h 55 min
- Shortest day
- 8 h 30 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 | 10° | 10° | 13° | 16° | 19° | 23° | 24° | 25° | 22° | 18° | 13° | 10° |
| Average low | 4° | 4° | 6° | 7° | 10° | 13° | 15° | 15° | 12° | 10° | 7° | 4° |
| Precipitation | 79 mm | 62 mm | 57 mm | 54 mm | 66 mm | 38 mm | 42 mm | 34 mm | 62 mm | 92 mm | 84 mm | 89 mm |
| Wet days (≥1 mm) | 13.9 | 10.8 | 12 | 10 | 11.2 | 9.4 | 9.2 | 9.1 | 7.3 | 13.1 | 13.7 | 12.9 |
| Cloud cover | 47% | 44% | 42% | 40% | 38% | 34% | 31% | 30% | 33% | 42% | 45% | 47% |
| Sea temperature | 10° | 9° | 10° | 12° | 14° | 17° | 18° | 19° | 17° | 16° | 14° | 11° |
| Daylight | 8h 53 | 10h 17 | 11h 51 | 13h 36 | 15h 05 | 15h 55 | 15h 35 | 14h 17 | 12h 37 | 10h 56 | 9h 21 | 8h 30 |
| Month score | 18 | 29 | 42 | 62 | 70 | 76 | 78 | 79 | 82 | 62 | 36 | 21 |