Climate Insights for Larvik

The climate in Larvik is cool. The average annual temperature is 9°C and approximately 1092mm 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 116cm 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. January is the coolest month, with minimum temperatures around 0°C and an average of 2°C. Daily temperature variation is modest, with an average difference of 3°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 1092mm of precipitation annually, which averages out to around 91mm per month. The wettest month is October, averaging 135mm of rainfall. November and September also tend to see above-average precipitation. The driest month is April, with just 47mm. That's 88mm less than October, 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 116cm accumulating over the season. January typically sees the most snow at around 35cm.

Larvik is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently summer in Larvik, which began on June 21, 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. Autumn is next, beginning on September 23, 2026 — 92 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 17°C with modest rainfall averaging 85mm 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.