Weather in Trondheim in July 2025
- July is usually the hottest month of the year in Trondheim;
Average weather
Average temperature in Trondheim in July
The temperature in July is +19°C on average, with a range between a maximum of +27°C during the day and a minimum of +9°C at night.
The average maximum temperature goes up 28% by the end of the month, compared with the beginning of the month, from +15°C to +20°C.
Is Trondheim warm or cold in July?
Trondheim is typically mild in July.
Maximum temperatures go up compared to the previous month from +16°C to +19°C. The minimum temperature also goes up from +9°C to +11°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
July is the hottest month in Trondheim, here is the comparison with other months:
Water temperature in Trondheim in July
Water in Trondheim in July is Cold. It varies from +13°C to +16°C, with an average of +14°C. This is almost similar to the air temperature, which averages +19°C.
The water temperature in July is one of the warmest of the entire year:
Can you swim in Trondheim in July?
Climate in Trondheim in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +16°C | +19°C | +18°C | ||||
| Min. temperature | ||||||
| +2°C | +4°C | +2°C | ||||
| Max. temperature | ||||||
| +32°C | +32°C | +30°C | ||||
| Rainfall | ||||||
| 106 mm | 118 mm | 124 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Avg. water temperature | ||||||
| +12°C | +14°C | +15°C | ||||
| Humidity | ||||||
| 73% | 76% | 78% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 1 | ||||
| Cloudy days | ||||||
| 7 | 7 | 7 | ||||
| Rainy days | ||||||
| 22 | 23 | 23 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July typically has worse weather conditions compared to June. It’s getting warmer as July arrives. The average maximum temperature goes up from +16°C to +19°C during the day. Prepare for more rain. Average rainfall goes from 106 mm to 118 mm. Humidity rises from 73% to 76%. The average wind speed doesn’t change much during July, staying around 1 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
August brings much the same weather, it remains ok.
Wind
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Trondheim is gradually decreasing during July, going from 1 m/s to 0 m/s over the course of the month.
Rain
How was the weather last July in Trondheim?
Climate Change over Years
The climate in Trondheim in July has not changed much over the last 43 years.
The average temperature was the lowest in 1981 (+7°C) and the highest in 2014 (+11°C). The driest year was 2002 with only 617 mm of rainfall, and the wettest year was 2007 with 1311 mm.
FAQ
Is July a good time to visit Trondheim?
Can you sunbathe in Trondheim in July?
Can you swim in Trondheim in July?
Is Trondheim rainy in July?
Is it sunny in Trondheim in July?
Other cities in Norway
Monthly weather in Trondheim
Source of the data
For this page, we’ve looked at the typical weather in Trondheim, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.