August weather forecast
Trondheim, Norway

August is a bittersweet time in Trondheim, marking the gradual end of summer with temperatures ranging from 9°C (48.2°F) to 17°C (62.6°F). The daylight hours start to recede but remain significantly lengthy, offering ample time to enjoy the city's beauty. Despite the slightly cooler temperatures when compared to July, August's weather remains relatively stable throughout the month. August’s rainfall, on par with July’s figures, continues to unfailingly visit Trondheim, enhancing the city’s reputation for being a fairly rainy location. As the month rolls into September, locals brace themselves for the imminent arrival of autumn.

Temperature

In Trondheim, the peak average temperatures are observed in August, with a high of 17°C (62.6°F) and a low of 9°C (48.2°F).

Rainfall

In Trondheim, Norway, in August, it is raining for 19 days, with typically 77mm (3.03") of accumulated precipitation. Throughout the year, in Trondheim, there are 239 rainfall days, and 1096mm (43.15") of precipitation is accumulated.

Sea temperature

August is the month with the warmest seawater in Trondheim, with an average sea temperature of 14.8°C (58.6°F).
Note: Diving into 14.8°C (58.6°F) is practical below 10°C (50°F), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Merely touching waters at 13°C (55.4°F) feels ice-cold.

Daylight

In August, the average length of the day in Trondheim is 16h and 10min.
On the first day of the month, sunrise is at 04:34 and sunset at 22:15. On the last day of August, sunrise is at 06:02 and sunset at 20:35 CEST.

Sunshine

The average sunshine in August is 5h.

UV index

The average daily maximum UV index in August is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: In August, a daily maximum UV index of 3 leads to the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.