Trondheim
May
Weather in Trondheim for May 2025
Your guide to Trondheim weather in May - trends and predictions
In general, the average temperature in Trondheim at the beginning of May is 11.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.4 °C by the end of May.
Trondheim sees moderate rainfall in May, averaging 8 rainy days.
Is May a good time to visit Trondheim? check out the best time to travel to Trondheim page.
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23
Dry days
8
Rainy days
0
Snow days
16°/3°
Temperatures
15 km/h
Avg max wind
71 %
Avg humidity
Trondheim in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  10° | 2  11° | 3 11° | 4 11° | |||
| 5  13° | 6 12° | 7  12° | 8  12° | 9 12° | 10 13° | 11 12° |
| 12 15° | 13  18° | 14 19° | 15 17° | 16 16° | 17 14° | 18 16° |
| 19 13° | 20 17° | 21 18° | 22 22° | 23 16° | 24 16° | 25 16° |
| 26 18° | 27 18° | 28 12° | 29 15° | 30 17° | 31 12° |
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Temperatures trend during May in Trondheim
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 10° /1° | 1.5 mm | 3 | |
| 2 May | Moderate rain at times | 11° /3° | 2.1 mm | 4 | |
| 3 May | Patchy rain possible | 11° /3° | 0.4 mm | 3 | |
| 4 May | Patchy rain possible | 11° /3° | 0.2 mm | 4 | |
| 5 May | Overcast | 13° /2° | 0.7 mm | 3 | |
| 6 May | Overcast | 12° /3° | 0 mm | 3 | |
| 7 May | Sunny | 12° /2° | 2.7 mm | 4 | |
| 8 May | Partly cloudy | 12° /4° | 2.7 mm | 4 | |
| 9 May | Overcast | 12° /4° | 2.7 mm | 3 | |
| 10 May | Overcast | 13° /4° | 0.1 mm | 4 | |
| 11 May | Overcast | 12° /5° | 1.7 mm | 3 | |
| 12 May | Patchy rain possible | 15° /7° | 0.4 mm | 4 | |
| 13 May | Cloudy | 18° /6° | 0 mm | 5 | |
| 14 May | Partly cloudy | 19° /7° | 0 mm | 5 | |
| 15 May | Patchy rain possible | 17° /8° | 0.8 mm | 4 | |
| 16 May | Moderate or heavy rain shower | 16° /6° | 4.3 mm | 4 | |
| 17 May | Moderate rain at times | 14° /5° | 3.4 mm | 4 | |
| 18 May | Patchy rain possible | 16° /5° | 1.1 mm | 4 | |
| 19 May | Partly cloudy | 13° /5° | 1.6 mm | 4 | |
| 20 May | Partly cloudy | 17° /5° | 0 mm | 5 | |
| 21 May | Cloudy | 18° /6° | 0 mm | 5 | |
| 22 May | Cloudy | 22° /8° | 0 mm | 5 | |
| 23 May | Moderate or heavy rain shower | 16° /9° | 3.1 mm | 4 | |
| 24 May | Patchy rain possible | 16° /7° | 1.7 mm | 5 | |
| 25 May | Patchy rain possible | 16° /6° | 6.7 mm | 4 | |
| 26 May | Patchy rain possible | 18° /9° | 5.6 mm | 4 | |
| 27 May | Moderate rain at times | 18° /9° | 6.8 mm | 5 | |
| 28 May | Moderate rain at times | 12° /6° | 4.6 mm | 3 | |
| 29 May | Moderate or heavy rain shower | 15° /5° | 5.2 mm | 4 | |
| 30 May | Patchy rain possible | 17° /5° | 0.9 mm | 5 | |
| 31 May | Patchy rain possible | 12° /6° | 1.3 mm | 3 | |
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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.
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 16° and lows near 3°, suitable for diverse activities and preferences.
How much rainfall should be expected in Trondheim during May?
Significant rainfall exceeding 123.1 mm is expected in Trondheim during May, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
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.
What to pack to Trondheim in May?
As you prepare for your trip to Trondheim in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Trondheim, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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