TønsbergReport this photo · linked, not stored
Tønsberg climate by month
What the weather is like
Tønsberg has a warm-summer humid continental climate (Köppen Dfb): warm summers, cold winters and precipitation in every season.
The warmest month is July, when afternoons average 21° and nights 14°. January is the coolest month, with highs of 2° and lows of -3°. The difference between the warmest and the coolest month is about 18°.
About 983 mm of precipitation falls in an average year. August is the wettest month (98 mm, 17 wet days) and March the driest (63 mm, 10 wet days). Cloud cover ranges from 33% in July to 52% in November.
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 Oslo, the capital, Tønsberg is 1.9° cooler on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 21° · July
- Coldest nights
- -3° · February
- Wettest month
- August
- Driest month
- March
- Clearest skies
- July · 33% cloud
- Warmest sea
- 18° · August
- Longest day
- 18 h 32 min
- Shortest day
- 6 h 10 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 | 2° | 2° | 5° | 10° | 15° | 19° | 21° | 20° | 16° | 11° | 6° | 3° |
| Average low | -3° | -3° | -1° | 3° | 8° | 12° | 14° | 14° | 10° | 6° | 2° | -1° |
| Precipitation | 79 mm | 54 mm | 63 mm | 56 mm | 63 mm | 69 mm | 85 mm | 98 mm | 96 mm | 125 mm | 115 mm | 80 mm |
| Wet days (≥1 mm) | 14.6 | 12.2 | 9.8 | 9.9 | 13.2 | 13.3 | 15.5 | 16.6 | 13 | 15 | 14.8 | 14.2 |
| Cloud cover | 50% | 48% | 46% | 41% | 34% | 34% | 33% | 35% | 39% | 47% | 52% | 51% |
| Sea temperature | 4° | 3° | 3° | 6° | 11° | 15° | 18° | 18° | 15° | 12° | 9° | 6° |
| Daylight | 6h 53 | 9h 16 | 11h 43 | 14h 28 | 16h 57 | 18h 32 | 17h 52 | 15h 35 | 12h 55 | 10h 18 | 7h 44 | 6h 10 |
| Month score | 17 | 22 | 28 | 30 | 53 | 67 | 66 | 65 | 57 | 21 | 16 | 16 |