Trondheim
May
Weather in Trondheim for May 2026
Your guide to Trondheim weather in May - trends and predictions
Snow Avalanche Warning - See hour by hour.
With an average of 3 snowy days, Trondheim usually enjoys a light touch of snow in May.
According to Trondheim snow forecast for May 2026, 5 snowy days are expected at the beginning of May. The first snowfall for May is expected in Saturday, 2 May.The forecast for the first days of May 2026 in Trondheim predicts temperatures to be around 8 °C, close to the historical average.
In general, the average temperature in Trondheim at the beginning of May is 8.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 14.4 °C by the end of May.
Trondheim in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 86.9 mm.
Official Weather Alert ⚠️
Snow Forecast ❄️
Temperatures
Rain 🌧️
9
Dry days
19
Rainy days
3
Snow days
13°/5°
Temperatures
15 km/h
Avg max wind
70 %
Avg humidity
Trondheim Weather May
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Temperatures trend during May in Trondheim
See the weather trend as well as the moving average line
May weather in Trondheim day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 May |  Sunny | 14° /6° | 0 mm | 0 cm | |
| 2 May |  Moderate rain | 8° /3° | 5.5 mm | 1.1 cm | |
| 3 May |  Patchy rain possible | 6° /1° | 0.6 mm | 0.4 cm | |
| 4 May | Patchy rain possible | 5° /1° | 3.2 mm | 2.2 cm | |
| 5 May | Patchy rain possible | 9° /2° | 1.4 mm | 0.3 cm | |
| 6 May | Patchy rain possible | 12° /2° | 1.4 mm | 0 cm | |
| 7 May | Patchy rain possible | 6° /3° | 0.3 mm | 0 cm | |
| 8 May | Patchy rain possible | 7° /2° | 0.5 mm | 0 cm | |
| 9 May | Patchy rain possible | 6° /3° | 1.8 mm | 0.6 cm | |
| 10 May | Patchy rain possible | 5° /3° | 1.2 mm | 0 cm | |
| 11 May | Patchy rain possible | 6° /3° | 0.3 mm | 0 cm | |
| 12 May |  Overcast | 9° /3° | 0 mm | 0 cm | |
| 13 May | Patchy rain possible | 6° /4° | 0.3 mm | 0 cm | |
| 14 May |  Partly cloudy | 15° /6° | 0.5 mm | 0 cm | |
| 15 May | Patchy rain possible | 15° /6° | 0.6 mm | 0 cm | |
| 16 May |  Moderate or heavy rain shower | 15° /6° | 2.9 mm | 0 cm | |
| 17 May | Moderate rain at times | 14° /5° | 2.3 mm | 0 cm | |
| 18 May | Patchy rain possible | 16° /4° | 0.7 mm | 0 cm | |
| 19 May | Partly cloudy | 14° /5° | 1 mm | 0 cm | |
| 20 May | Partly cloudy | 15° /5° | 0.1 mm | 0 cm | |
| 21 May |  Cloudy | 15° /5° | 2.3 mm | 0 cm | |
| 22 May | Cloudy | 18° /6° | 0.3 mm | 0 cm | |
| 23 May | Moderate or heavy rain shower | 13° /7° | 4.5 mm | 0 cm | |
| 24 May | Patchy rain possible | 13° /5° | 9.4 mm | 0 cm | |
| 25 May | Patchy rain possible | 16° /5° | 4.5 mm | 0 cm | |
| 26 May | Patchy rain possible | 15° /7° | 9.2 mm | 0 cm | |
| 27 May | Moderate rain at times | 18° /7° | 6.4 mm | 0 cm | |
| 28 May | Moderate rain at times | 11° /6° | 9.7 mm | 0 cm | |
| 29 May | Moderate or heavy rain shower | 14° /5° | 5.2 mm | 0 cm | |
| 30 May | Patchy rain possible | 15° /5° | 1.1 mm | 0 cm | |
| 31 May | Patchy rain possible | 12° /5° | 1.8 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Trondheim in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Trondheim forecast closer to your planned date for the most up-to-date weather information.
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Trondheim in May - FAQ
What are the expected maximum and minimum temperatures in Trondheim during May?
During May, expect a variety of temperatures with highs around 13° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Trondheim during May?
Moderate rainfall is anticipated in Trondheim during May, with a total of 86.9 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
Will it snow in Trondheim in May 2026?
Trondheim experiences an average snowfall of 1.11333 cm during May, occurring over 3 days.
What are the typical wind conditions in Trondheim during May?
The average wind speed in Trondheim during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
Trondheim snow forecast May 2026
Track daily snowfall levels and discover Trondheim’s snowy potential this May ❄️
On average, Trondheim sees 3 snowy days during May, with approximately 1.1 cm of total snowfall.
May rainfall patterns in Trondheim
Explore the daily rainfall trends and prepare for Trondheims May weather 💧
Typically, Trondheim has 19 rainy days in May with a total of 86.9 mm of rainfall.
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