Dunkirk city hallReport this photo · linked, not stored
Dunkirk climate by month
What the weather is like
Dunkirk has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 23° and nights 14°. January is the coolest month, with highs of 7° and lows of 3°. The difference between the warmest and the coolest month is about 14°.
About 766 mm of precipitation falls in an average year. November is the wettest month (77 mm, 17 wet days) and April the driest (47 mm, 10 wet days). Cloud cover ranges from 34% in July to 51% in December.
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, Dunkirk is 3.4° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 23° · August
- Coldest nights
- 3° · January
- Wettest month
- November
- Driest month
- April
- Clearest skies
- July · 34% cloud
- Warmest sea
- 18° · August
- Longest day
- 16 h 31 min
- Shortest day
- 7 h 57 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 | 7° | 8° | 11° | 14° | 17° | 20° | 22° | 23° | 20° | 16° | 11° | 8° |
| Average low | 3° | 3° | 4° | 6° | 9° | 12° | 14° | 14° | 12° | 9° | 6° | 3° |
| Precipitation | 61 mm | 46 mm | 54 mm | 47 mm | 60 mm | 65 mm | 64 mm | 64 mm | 71 mm | 83 mm | 77 mm | 74 mm |
| Wet days (≥1 mm) | 15.4 | 13.2 | 10.8 | 9.6 | 10.6 | 10.1 | 11.7 | 12.9 | 10.9 | 15.2 | 16.6 | 15.9 |
| Cloud cover | 49% | 48% | 45% | 40% | 40% | 40% | 34% | 35% | 40% | 44% | 48% | 51% |
| Sea temperature | 8° | 7° | 7° | 9° | 12° | 15° | 17° | 18° | 18° | 15° | 13° | 10° |
| Daylight | 8h 24 | 10h 02 | 11h 49 | 13h 49 | 15h 32 | 16h 31 | 16h 07 | 14h 36 | 12h 41 | 10h 46 | 8h 57 | 7h 57 |
| Month score | 17 | 19 | 30 | 52 | 66 | 72 | 71 | 68 | 70 | 48 | 22 | 16 |