Climate Insights for Larvik

The climate in Larvik is cool. The average annual temperature is 9°C and approximately 1048mm of precipitation falls per year. Larvik receives a notable amount of rainfall throughout the year, including during its driest month. Larvik is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, March, when temperatures can drop to 0°C. Snowfall occurs from January to December, with around 98cm accumulating over the season.

Larvik sees moderate temperature variation throughout the year, ranging from 0°C to 19°C. July is the warmest month, though highs remain moderate at 19°C with a mean of 17°C. The coldest month is January, when overnight lows fall to 0°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between April and May, with a 5°C shift in average temperatures.

Larvik is a moderately rainy area, receiving approximately 1048mm of precipitation annually, which averages out to around 87mm per month. The wettest month is September, averaging 131mm of rainfall. November and October also tend to see above-average precipitation. The driest month is April, with just 43mm. That's 88mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 98cm accumulating over the season. January typically sees the most snow at around 28cm.

Larvik is moderately windy, with an average annual wind speed of 26km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 30km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 23km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 7km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 29km/h in winter, 24km/h in spring, 23km/h in summer, 28km/h in autumn.

It is currently spring in Larvik, which began on March 20, 2026. Larvik is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 19°C, while the coldest stretch bottoms out in January near 0°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Larvik is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 86mm per month. By contrast, January can be quite cold with temperatures dropping to 0°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Larvik based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.