Haparanda climate by month
What the weather is like
Haparanda has a subarctic climate (Köppen Dfc): warm summers, cold winters and precipitation in every season.
The warmest month is July, when afternoons average 21° and nights 12°. February is the coolest month, with highs of -6° and lows of -14°. The difference between the warmest and the coolest month is about 26°, a large swing typical of continental interiors.
About 861 mm of precipitation falls in an average year. August is the wettest month (90 mm, 14 wet days) and April the driest (42 mm, 10 wet days). Cloud cover ranges from 38% in June to 60% in November.
The sea reaches about 15° 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 Stockholm, the capital, Haparanda is 2.3° cooler on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 21° · July
- Coldest nights
- -14° · February
- Wettest month
- August
- Driest month
- April
- Clearest skies
- June · 38% cloud
- Warmest sea
- 15° · August
- Longest day
- 23 h 35 min
- Shortest day
- 3 h 06 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 | -5° | -6° | -1° | 5° | 11° | 18° | 21° | 18° | 13° | 5° | 0° | -3° |
| Average low | -13° | -14° | -9° | -3° | 2° | 9° | 12° | 10° | 6° | 0° | -5° | -10° |
| Precipitation | 72 mm | 56 mm | 56 mm | 42 mm | 56 mm | 69 mm | 96 mm | 90 mm | 80 mm | 87 mm | 88 mm | 69 mm |
| Wet days (≥1 mm) | 11.6 | 11.1 | 10.1 | 9.6 | 11.8 | 11.8 | 14.1 | 14.4 | 13.3 | 12 | 14.1 | 13.8 |
| Cloud cover | 59% | 54% | 51% | 42% | 39% | 38% | 38% | 42% | 46% | 54% | 60% | 59% |
| Sea temperature | 0° | 0° | 0° | 0° | 3° | 9° | 15° | 15° | 12° | 8° | 4° | 2° |
| Daylight | 4h 36 | 8h 17 | 11h 37 | 15h 17 | 19h 03 | 23h 35 | 20h 54 | 16h 53 | 13h 12 | 9h 43 | 6h 01 | 3h 06 |
| Month score | 19 | 22 | 25 | 30 | 33 | 66 | 64 | 62 | 35 | 20 | 13 | 13 |