Viken, Sweden experiences average highs of 7°C (45°F) and lows of 2°C (36°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Average highs have warmed by 1.5°C (2.7°F) across the available records.
Viken, Sweden Weather & Climate 2026
Monthly climate averages for Viken, Sweden. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Sep 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
3.6/10
Best: June, July, August
UV Index
2
Low
Temperature 7°C / 2°C
Feels Like 4°C / -2°C
Rainy Days 10
Rainfall 56 mm
Sunshine 7 h
Humidity 79%
Wind Speed 19 km/h
Dew Point 1°C
Snow Days 11 days
Frost Days 21 days
Hottest Month
20°C
July
Avg Low14°C
Rain12days
Coldest Month
-9°C
January
Avg High-4°C
Rain11days
Driest Month
7days
March
Avg High0°C
Avg Low-5°C
Windiest Month
22 km/h
January (Gusts 37)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 01:51
Daylight 21.6h
Sunset 23:25
Live conditions—
Viken on the map · live conditions
Viken, Sweden
- Continent
- Europe
- Country
- Sweden
- City
- Viken
- Population
- 3.8K
- Coordinates
- 64.73°, 20.92°
Seasonal Breakdown
Spring
Mar–May
Avg High 6°C
Avg Low -1°C
Rain 7 days/mo
Summer
Jun–Aug
Avg High 19°C
Avg Low 12°C
Rain 11 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 7°C
Avg Low 3°C
Rain 11 days/mo
Winter
Dec–Feb
Avg High -3°C
Avg Low -7°C
Rain 11 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: -4°C / -9°C . Feb: -3°C / -8°C . Mar: 0°C / -5°C . Apr: 5°C / -2°C . May: 12°C / 4°C . Jun: 18°C / 11°C . Jul: 20°C / 14°C . Aug: 18°C / 13°C . Sep: 13°C / 9°C . Oct: 6°C / 3°C . Nov: 1°C / -3°C . Dec: -1°C / -6°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 52 mm. Feb: 37 mm. Mar: 31 mm. Apr: 37 mm. May: 34 mm. Jun: 52 mm. Jul: 73 mm. Aug: 80 mm. Sep: 68 mm. Oct: 81 mm. Nov: 60 mm. Dec: 61 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 84%. Feb: 84%. Mar: 79%. Apr: 74%. May: 65%. Jun: 66%. Jul: 73%. Aug: 77%. Sep: 81%. Oct: 86%. Nov: 88%. Dec: 87%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 20 km/h . Mar: 20 km/h . Apr: 18 km/h . May: 18 km/h . Jun: 18 km/h . Jul: 17 km/h . Aug: 19 km/h . Sep: 19 km/h . Oct: 20 km/h . Nov: 21 km/h . Dec: 21 km/h .
Sunshine
Sunshine
Sunshine: Jan: 1h. Feb: 3h. Mar: 7h. Apr: 10h. May: 13h. Jun: 14h. Jul: 13h. Aug: 11h. Sep: 7h. Oct: 4h. Nov: 1h. Dec: 1h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 0. Feb: UV 1. Mar: UV 2. Apr: UV 3. May: UV 4. Jun: UV 5. Jul: UV 4. Aug: UV 4. Sep: UV 2. Oct: UV 1. Nov: UV 0. Dec: UV 0.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 17 days. Feb: 13 days. Mar: 13 days. Apr: 8 days. May: 2 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 4 days. Nov: 12 days. Dec: 17 days.
Climate Trends
Average highs have warmed by 1.5°C (2.7°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 23°C | Jul · 20°C |
| Coldest month | Jan 2025 · -8°C | Jan · -9°C |
| Wettest month | Oct 2025 · 103 mm | Oct · 81 mm |
| Windiest month | Jan 2025 · 23 km/h | Jan · 22 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Fair June best
Good July best
Excellent August best
Good September
Fair October
Poor November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -4°C / -9°C | -9°C / -14°C | 11days (52 mm) Wet | 1.1h Poor | 84% Humid | 0.2 Low | Poor | View Details |
| February | -3°C / -8°C | -8°C / -13°C | 8days (37 mm) Wet | 3.2h Poor | 84% Humid | 0.8 Low | Poor | View Details |
| March | 0°C / -5°C | -4°C / -10°C | 7days (31 mm) Good | 7.2h Good | 79% Humid | 2 Low | Poor | View Details |
| April | 5°C / -2°C | 1°C / -7°C | 7days (37 mm) Good | 10.4h Excellent | 74% Muggy | 3.1 Moderate | Poor | View Details |
| May | 12°C / 4°C | 9°C / 0°C | 7days (34 mm) Good | 13.3h Excellent | 65% Muggy | 4.3 Moderate | Fair | View Details |
| June best | 18°C / 11°C | 16°C / 8°C | 9days (52 mm) Wet | 14.3h Excellent | 66% Muggy | 4.7 Moderate | Good | View Details |
| July best | 20°C / 14°C | 19°C / 13°C | 12days (73 mm) Wet | 13.4h Excellent | 73% Muggy | 4.4 Moderate | Excellent | View Details |
| August best | 18°C / 13°C | 17°C / 11°C | 13days (80 mm) Wet | 10.8h Excellent | 77% Humid | 3.6 Moderate | Good | View Details |
| September | 13°C / 9°C | 11°C / 6°C | 10days (68 mm) Wet | 6.8h Fair | 81% Humid | 2.3 Moderate | Fair | View Details |
| October | 6°C / 3°C | 3°C / -1°C | 12days (81 mm) Wet | 3.9h Poor | 86% Very Muggy | 1 Low | Poor | View Details |
| November | 1°C / -3°C | -4°C / -8°C | 12days (60 mm) Wet | 1.3h Poor | 88% Very Muggy | 0.3 Low | Poor | View Details |
| December | -1°C / -6°C | -6°C / -11°C | 13days (61 mm) Wet | 0.6h Poor | 87% Very Muggy | 0.1 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Viken are June, July, August, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Viken, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Viken is July, with average daytime highs of 20°C (68°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Viken is January, with average overnight lows of -9°C (16°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Viken is October, averaging 81mm of precipitation across 12 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Viken runs through August, December, July, October, with the heaviest rainfall in August. Based on 10-year averages for Viken.
Viken receives approximately 86 sunshine hours per year. The sunniest month is June with around 14 hours. Based on climate data for Viken.
The least favorable months to visit Viken are January, February, November, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider June, July, August instead.
The annual average UV index in Viken is 2, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Viken is 79%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Viken receives snow. Months with snowfall average 11 snow days and 21 cm (8 in) of accumulation, with about 21 frost days during winter.
Average wind speeds in Viken are 19 km/h (12 mph). The windiest month is January with peak winds reaching 22 km/h (14 mph) (gusts up to 37 km/h / 23 mph).
Viken averages 2 clear-sky days per month with overall cloud cover around 68%. The clearest skies occur in July.
The annual average dew point in Viken is 1°C (34°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Viken has a Warm-Summer Continental climate, classified as Dfb under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Viken ranges from -2°C (28°F) to 4°C (39°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Viken. It earns a climate score of 7.3/10 with Good.
For June in Viken, pack Layered clothing, Light jacket, Umbrella, Comfortable walking shoes. With average highs of 18°C (64°F) and 9 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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