Trondheim weather in July
In July, Trondheim has daytime highs averaging 19 °C, nights around 11 °C, with 14 wet days. Figures are 1991–2020 climate normals.
- 18.5°C Average high
- 10.8°C Average low
- 14days Wet days
- 87mm Rainfall
- 19h Daylight
Daily temperatures through July
How July develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 July | 17.7 °C | 10.0 °C | 50 % |
| 11–20 July | 18.1 °C | 10.5 °C | 46 % |
| 21–31 July | 19.6 °C | 11.6 °C | 43 % |
- Average highs rise from 17.7 °C early in July to 19.6 °C by the end of it.
- Rain is most likely over days 1–10 of July (50 % of days) and least likely over days 21–31 (43 %).
What to expect
| Measure | Typical July | Share of the month |
|---|---|---|
| Days above 25 °C | 3.2 of 31 | 10 % |
| Days above 30 °C | 0.3 of 31 | 1 % |
| Days below 0 °C | 0 of 31 | 0 % |
| Days with more than 1 mm rain | 14 of 31 | 46 % |
Conditions in July
| Measure | Average |
|---|---|
| Mean temperature | 15 °C |
| Record high (1991–2020) | 31 °C |
| Record low (1991–2020) | 3.6 °C |
| Relative humidity | 79 % |
| Wind speed | 12 km/h |
| Cloud cover | 73 % |
Where Trondheim ranks in July
| Ranking | Position | Value |
|---|---|---|
| The coolest places in Europe in July | 18th of 50 | 19 °C |
July compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| May | 12.5 °C | 71 mm | 69 % |
| June | 15.8 °C | 96 mm | 75 % |
| July | 18.5 °C | 87 mm | 73 % |
| August | 17.8 °C | 100 mm | 73 % |
| September | 14.0 °C | 106 mm | 71 % |
See all twelve months for Trondheim
- July is the warmest month in Trondheim.
- It is the 5th driest month of the year.
- It ranks 7th for least cloud cover.
- Days last about 19 hours from sunrise to sunset.
- It rains on 14 of 31 days — 46 % of the month.
- Nights are about 7.8 °C cooler than the middle of the day.
- The hottest July day on record since 1991 reached 31 °C, 13 °C above the usual daytime high.
QuestionsJuly in Trondheim, answered
How warm is Trondheim in July?
Daily highs average 19 °C and nights fall to about 11 °C, a spread of 7.8 °C between afternoon and dawn. That makes July the 1st warmest month of the year here.
Does it rain much in Trondheim in July?
July averages 87 mm of rain, spread over about 14 of the 31 days — 46 % of the month. Cloud cover averages 73 % of the sky.
How long are the days in July?
Trondheim averages 19 hours between sunrise and sunset in July. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.