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📊 Monthly Climate Overview
| Month | Max °C | Min °C | Rain mm | Rain Days | Sun h | Wind km/h | Sea °C |
|---|---|---|---|---|---|---|---|
| Jan | 0.2°C | -4.9°C | 98.3 mm | 16 | 2.0 h | 18.3 km/h | 3.8°C |
| Feb | 1.7°C | -3.8°C | 78.2 mm | 14 | 4.1 h | 17.5 km/h | 4.1°C |
| Mar | 4°C | -2.6°C | 97.4 mm | 16 | 6.6 h | 18.7 km/h | 3.7°C |
| Apr | 7.9°C | 0.3°C | 77.3 mm | 15 | 9.6 h | 16.3 km/h | 5.7°C |
| May | 12.6°C | 4.6°C | 76.8 mm | 16 | 11.4 h | 16.5 km/h | 9°C |
| Jun | 16.6°C | 9.1°C | 91.1 mm | 15 | 11.6 h | 16.4 km/h | 12.8°C |
| Jul | 18.8°C | 11.4°C | 101.2 mm | 17 | 11.7 h | 15.3 km/h | 16.2°C |
| Aug | 17.6°C | 10.7°C | 123.2 mm | 16 | 10.0 h | 14.8 km/h | 15.9°C |
| Sep | 14.5°C | 8.4°C | 135.5 mm | 16 | 7.3 h | 16.1 km/h | 12.8°C |
| Oct | 8.7°C | 3.6°C | 127.1 mm | 18 | 4.9 h | 16.4 km/h | 9.1°C |
| Nov | 3.5°C | -0.9°C | 80.7 mm | 13 | 2.8 h | 15.7 km/h | 6.2°C |
| Dec | 1.2°C | -3.7°C | 116.1 mm | 17 | 0.9 h | 16.6 km/h | 3.9°C |
📖Climate & Best Time to Visit Trondheim
Trondheim (Norway) has a cool temperate climate with an annual average of around 6 °C. Daytime highs average 9 °C, while nights cool to about 3 °C. The destination sees roughly 1203 mm of rainfall per year and 6.9 hours of sunshine per day on average.
Spring and autumn are ideal for a city break: July is the sunniest month with 11.7 hours of sun per day, and mild temperatures make exploring on foot comfortable. Peak summer (July, up to 18.8 °C) can get exhausting, while in January nights drop to -4.9 °C.
Rainfall varies through the year: peaks in October (18 rainy days), driest month is November (13).
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Frequently asked questions about Trondheim
When is the best time to visit Trondheim?
The best time to visit Trondheim: May to September – best in June (avg. 12.9 °C, 15 rainy days). Based on the monthly values for 2014 to 2023.
What are the temperatures in Trondheim?
The warmest month is July with an average of 15.1 °C and daytime highs around 18.8 °C. The coldest month is January with an average of -2.3 °C and night-time lows around -4.9 °C.
How many rainy days does Trondheim have?
October has the most rainy days with 18 rainy days. The driest month is November with 13 rainy days.
What is the sea temperature near Trondheim?
The water is warmest in July at an average of 16.2 °C and coolest in March at 3.7 °C.