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Weather in Trondheim for May 2026

Your guide to Trondheim weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Trondheim at the beginning of May is 10 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 14.4 °C by the end of May.

    • Rain 🌧️

  • Trondheim in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 62.1 mm.

Average dry days
12
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
14°/6°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Trondheim Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
10°
2
Moderate rain at times
10°
3
Patchy rain possible
9°
4
Patchy rain possible
9°
5
Overcast
11°
6
Overcast
10°
7
Sunny
11°
8
Partly cloudy
11°
9
Overcast
11°
10
Overcast
14°
11
Overcast
14°
12
Patchy rain possible
16°
13
Cloudy
16°
14
Partly cloudy
15°
15
Patchy rain possible
15°
16
Moderate or heavy rain shower
15°
17
Moderate rain at times
14°
18
Patchy rain possible
16°
19
Partly cloudy
14°
20
Partly cloudy
15°
21
Cloudy
15°
22
Cloudy
18°
23
Moderate or heavy rain shower
13°
24
Patchy rain possible
13°
25
Patchy rain possible
16°
26
Patchy rain possible
15°
27
Moderate rain at times
18°
28
Moderate rain at times
11°
29
Moderate or heavy rain shower
14°
30
Patchy rain possible
15°
31
Patchy rain possible
12°

Temperatures trend during May in Trondheim

See the weather trend as well as the moving average line

May weather in Trondheim day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Patchy rain possible
Patchy rain possible
 10° /2° 1.7 mm 0 cm
2 May Moderate rain at times
Moderate rain at times
 10° /3° 6.1 mm 0 cm
3 May Patchy rain possible
Patchy rain possible
 9° /2° 2.6 mm 0.3 cm
4 May Patchy rain possible
Patchy rain possible
 9° /2° 1.3 mm 0.3 cm
5 May Overcast
Overcast
 11° /2° 3 mm 0.5 cm
6 May Overcast
Overcast
 10° /2° 0.6 mm 0 cm
7 May Sunny
Sunny
 11° /2° 1.8 mm 0 cm
8 May Partly cloudy
Partly cloudy
 11° /4° 3.1 mm 0 cm
9 May Overcast
Overcast
 11° /4° 1.9 mm 0 cm
10 May Overcast
Overcast
 14° /4° 0.1 mm 0 cm
11 May Overcast
Overcast
 14° /5° 1.2 mm 0 cm
12 May Patchy rain possible
Patchy rain possible
 16° /7° 0.3 mm 0 cm
13 May Cloudy
Cloudy
 16° /5° 0.2 mm 0 cm
14 May Partly cloudy
Partly cloudy
 15° /6° 0.5 mm 0 cm
15 May Patchy rain possible
Patchy rain possible
 15° /6° 0.6 mm 0 cm
16 May Moderate or heavy rain shower
Moderate or heavy rain shower
 15° /6° 2.9 mm 0 cm
17 May Moderate rain at times
Moderate rain at times
 14° /5° 2.3 mm 0 cm
18 May Patchy rain possible
Patchy rain possible
 16° /4° 0.7 mm 0 cm
19 May Partly cloudy
Partly cloudy
 14° /5° 1 mm 0 cm
20 May Partly cloudy
Partly cloudy
 15° /5° 0.1 mm 0 cm
21 May Cloudy
Cloudy
 15° /5° 2.3 mm 0 cm
22 May Cloudy
Cloudy
 18° /6° 0.3 mm 0 cm
23 May Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /7° 4.5 mm 0 cm
24 May Patchy rain possible
Patchy rain possible
 13° /5° 9.4 mm 0 cm
25 May Patchy rain possible
Patchy rain possible
 16° /5° 4.5 mm 0 cm
26 May Patchy rain possible
Patchy rain possible
 15° /7° 9.2 mm 0 cm
27 May Moderate rain at times
Moderate rain at times
 18° /7° 6.4 mm 0 cm
28 May Moderate rain at times
Moderate rain at times
 11° /6° 9.7 mm 0 cm
29 May Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /5° 5.2 mm 0 cm
30 May Patchy rain possible
Patchy rain possible
 15° /5° 1.1 mm 0 cm
31 May Patchy rain possible
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 14° and lows near 6°, 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 62.1 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Trondheim during May?
The average wind speed in Trondheim during May is 14 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 ❄️

May rainfall patterns in Trondheim

Explore the daily rainfall trends and prepare for Trondheims May weather 💧

Quick links

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Location coordinates Where is Trondheim?

Get accurate weather forecasts for Trondheim, located at latitude 63.43 and longitude 10.395. Stay updated with localized weather information tailored for Trondheim.

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