Slagelse climate by month
What the weather is like
Slagelse has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is July, when afternoons average 21° and nights 15°. January is the coolest month, with highs of 4° and lows of 0°. The difference between the warmest and the coolest month is about 16°.
About 664 mm of precipitation falls in an average year. August is the wettest month (68 mm, 16 wet days) and April the driest (35 mm, 9 wet days). Cloud cover ranges from 32% in July to 56% 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 Copenhagen, the capital, Slagelse is 0.8° cooler on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 21° · July
- Coldest nights
- 0° · February
- Wettest month
- August
- Driest month
- April
- Clearest skies
- July · 32% cloud
- Warmest sea
- 18° · August
- Longest day
- 17 h 26 min
- Shortest day
- 7 h 08 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 | 4° | 4° | 6° | 11° | 15° | 19° | 21° | 21° | 18° | 12° | 8° | 5° |
| Average low | 0° | 0° | 2° | 5° | 9° | 12° | 15° | 15° | 12° | 8° | 5° | 2° |
| Precipitation | 54 mm | 37 mm | 46 mm | 35 mm | 48 mm | 66 mm | 64 mm | 68 mm | 62 mm | 68 mm | 60 mm | 56 mm |
| Wet days (≥1 mm) | 13.3 | 11.1 | 9.9 | 8.5 | 11.1 | 11.8 | 13.9 | 15.8 | 11.9 | 14 | 13.2 | 14.7 |
| Cloud cover | 56% | 53% | 47% | 39% | 34% | 35% | 32% | 35% | 39% | 44% | 52% | 56% |
| Sea temperature | 3° | 2° | 3° | 5° | 11° | 15° | 18° | 18° | 16° | 12° | 8° | 5° |
| Daylight | 7h 42 | 9h 40 | 11h 46 | 14h 07 | 16h 11 | 17h 26 | 16h 55 | 15h 04 | 12h 48 | 10h 33 | 8h 23 | 7h 08 |
| Month score | 16 | 22 | 28 | 38 | 58 | 70 | 66 | 65 | 66 | 32 | 18 | 14 |