Larvik, Norway experiences average highs of 11°C (52°F) and lows of 6°C (43°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Average highs have warmed by 1.4°C (2.5°F) across the available records.
Larvik, Norway Weather & Climate 2026
Monthly climate averages for Larvik, Norway. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Sep 
Wetter season: Jul–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.3/10
Best: May, June, July, August, September
UV Index
3
Low
Temperature 11°C / 6°C
Feels Like 8°C / 3°C
Rainy Days 12
Rainfall 89 mm
Sunshine 8 h
Humidity 77%
Wind Speed 17 km/h
Dew Point 4°C
Snow Days 7 days
Frost Days 13 days
Hottest Month
20°C
July
Avg Low 14°C
Rain 13 days
Coldest Month
-2°C
January
Avg High 1°C
Rain 11 days
Driest Month
8 days
April
Avg High 10°C
Avg Low 3°C
Windiest Month
19 km/h
January (Gusts 41)
Sea Temperature
2°C – 19°C
Warmest water: July (
19.1°C
)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 04:32
Daylight 17.8h
Sunset 22:19
Live conditions —
Larvik on the map · live conditions
Larvik, Norway
- Continent
- Europe
- Country
- Norway
- City
- Larvik
- Population
- 23.1K
- Coordinates
- 59.05°, 10.04°
Seasonal Breakdown
Spring
Mar–May
Avg High 10°C
Avg Low 4°C
Rain 9 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 19°C
Avg Low 14°C
Rain 13 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 11°C
Avg Low 7°C
Rain 13 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 2°C
Avg Low -1°C
Rain 12 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 1°C / -2°C . Feb: 3°C / -2°C . Mar: 5°C / 0°C . Apr: 10°C / 3°C . May: 15°C / 8°C . Jun: 19°C / 13°C . Jul: 20°C / 14°C . Aug: 19°C / 14°C . Sep: 16°C / 12°C . Oct: 11°C / 7°C . Nov: 6°C / 3°C . Dec: 3°C / 0°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 96 mm. Feb: 72 mm. Mar: 66 mm. Apr: 50 mm. May: 59 mm. Jun: 83 mm. Jul: 99 mm. Aug: 98 mm. Sep: 120 mm. Oct: 116 mm. Nov: 109 mm. Dec: 101 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 82%. Feb: 80%. Mar: 78%. Apr: 68%. May: 68%. Jun: 71%. Jul: 73%. Aug: 77%. Sep: 79%. Oct: 81%. Nov: 85%. Dec: 86%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 18 km/h . Mar: 17 km/h . Apr: 16 km/h . May: 16 km/h . Jun: 15 km/h . Jul: 15 km/h . Aug: 15 km/h . Sep: 17 km/h . Oct: 18 km/h . Nov: 18 km/h . Dec: 17 km/h .
Sunshine
Sunshine
Sunshine: Jan: 3h. Feb: 5h. Mar: 7h. Apr: 10h. May: 12h. Jun: 13h. Jul: 13h. Aug: 11h. Sep: 8h. Oct: 5h. Nov: 3h. Dec: 2h.
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 3°C . Feb: 2°C . Mar: 4°C . Apr: 7°C . May: 12°C . Jun: 16°C . Jul: 19°C . Aug: 19°C . Sep: 17°C . Oct: 12°C . Nov: 8°C . Dec: 5°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 1. Mar: UV 2. Apr: UV 4. May: UV 5. Jun: UV 6. Jul: UV 5. Aug: UV 4. Sep: UV 3. Oct: UV 2. Nov: UV 1. Dec: UV 0.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow Days Snowfall
Snow Days: Jan: 12 days. Feb: 11 days. Mar: 9 days. Apr: 4 days. May: 1 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 2 days. Nov: 7 days. Dec: 11 days.
Climate Trends
Average highs have warmed by 1.4°C (2.5°F) across the available records. Average rainfall is trending wetter by about 21 mm.
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 · -2°C | Jan · -2°C |
| Wettest month | Oct 2025 · 176 mm | Sep · 120 mm |
| Windiest month | May 2025 · 19 km/h | Jan · 19 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May best
Fair June best
Good July best
Excellent August best
Excellent September best
Good October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 1°C / -2°C | -3°C / -7°C | 11days (96 mm) Wet | 2.7h Poor | 82% Humid | 0.5 Low | Poor | View Details |
| February | 3°C / -2°C | -2°C / -6°C | 10days (72 mm) Wet | 5h Fair | 80% Humid | 1.2 Low | Poor | View Details |
| March | 5°C / 0°C | 1°C / -4°C | 10days (66 mm) Wet | 7.2h Good | 78% Humid | 2.3 Moderate | Poor | View Details |
| April | 10°C / 3°C | 7°C / -1°C | 8days (50 mm) Wet | 10.4h Excellent | 68% Muggy | 3.8 Moderate | Fair | View Details |
| May best | 15°C / 8°C | 13°C / 5°C | 9days (59 mm) Wet | 12.3h Excellent | 68% Muggy | 5.2 High | Fair | View Details |
| June best | 19°C / 13°C | 18°C / 11°C | 12days (83 mm) Wet | 13.3h Excellent | 71% Muggy | 5.6 High | Good | View Details |
| July best | 20°C / 14°C | 20°C / 14°C | 13days (99 mm) Wet | 12.8h Excellent | 73% Muggy | 5.1 High | Excellent | View Details |
| August best | 19°C / 14°C | 18°C / 13°C | 13days (98 mm) Wet | 10.7h Excellent | 77% Humid | 4.2 Moderate | Excellent | View Details |
| September best | 16°C / 12°C | 15°C / 10°C | 12days (120 mm) Wet | 7.6h Good | 79% Humid | 3 Moderate | Good | View Details |
| October | 11°C / 7°C | 8°C / 4°C | 14days (116 mm) Wet | 5h Fair | 81% Humid | 1.6 Low | Fair | View Details |
| November | 6°C / 3°C | 3°C / -1°C | 13days (109 mm) Wet | 2.6h Poor | 85% Humid | 0.6 Low | Poor | View Details |
| December | 3°C / 0°C | -1°C / -4°C | 14days (101 mm) Wet | 1.7h Poor | 86% Very Muggy | 0.3 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Larvik are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Larvik, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Larvik 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 Larvik is January, with average overnight lows of -2°C (28°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Larvik is September, averaging 120mm of precipitation across 12 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Larvik runs through October, December, July, August, with the heaviest rainfall in October. Based on 10-year averages for Larvik.
Larvik receives approximately 91 sunshine hours per year. The sunniest month is June with around 13 hours. Based on climate data for Larvik.
The least favorable months to visit Larvik are January, February, November, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Larvik is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Larvik is 77%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 10°C (50°F), which most swimmers will find too cold without a wetsuit.
Yes, Larvik receives snow. Months with snowfall average 7 snow days and 19 cm (7 in) of accumulation, with about 13 frost days during winter.
Average wind speeds in Larvik are 17 km/h (11 mph). The windiest month is January with peak winds reaching 19 km/h (11 mph) (gusts up to 41 km/h / 25 mph).
Larvik averages 3 clear-sky days per month with overall cloud cover around 64%. The clearest skies occur in April.
The annual average dew point in Larvik is 4°C (39°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Larvik has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Larvik ranges from 3°C (37°F) to 8°C (46°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, July is a great time to visit Larvik. It earns a climate score of 7.6/10 with Excellent.
For July in Larvik, pack Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 20°C (68°F) and 13 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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