If you plan to visit Tromso in May, the weather is typically alright, with an average high temperature of +9°C during the day and approximately 4 sunny days. Expect some rainy, though, as there are typically 17 rainy days in the month and around 89 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Good to know:
May is usually the driest month of the year in Tromso
Average weather
☀️
+9°C
Avg. max. temperature
-8°C
Min.
+25°C
Max.
89 mm
Total precipitation
71%
Avg. humidity
3 m/s
Avg. wind
4 ☀️
Sunny Days
7 ⛅️
Cloudy
17 🌦
Rainy
Our opinion: Tromso has OK weather in May.
Average temperature in Tromso in May
Here are the expected maximum, average and minimum temperatures in Tromso for May based on the historical data.
Last Year
Historical Data
Going from a maximum of +18°C during the day to a minimum of -4°C during the night, the temperature in May averages around +9°C.
The average maximum temperature goes up 5% by the end of the month, compared with the beginning of the month, from +7°C to +8°C.
Is Tromso warm or cold in May?
Tromso is typically cool in May.
Maximum temperatures go up compared to the previous month from +4°C to +9°C. The minimum temperature also goes up from -1°C to +3°C.
Pack a sweater and a jacket as there will be cooler temperatures.
Take a look at how May is compared to other months in Tromso:
Water temperature in Tromso in May
Water in Tromso in May is Cold. It varies from +4°C to +8°C, with an average of +6°C.This is almost similar to the air temperature, which averages +9°C.
In May, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Tromso are reached in August, when the average sea temperature rises to +11°C. The coldest water temperatures are in March, with an average of +4°C.
Can you swim in Tromso in May?
We would not recommend swimming in Tromso in May, the water is very cold (+6°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Tromso in May
Tromso weather looks like this, on average, in May and the surrounding months.
April
May
June
Avg. temperature
+4°C
+9°C
+14°C
Min. temperature
-16°C
-8°C
0°C
Max. temperature
+17°C
+25°C
+31°C
Rainfall
60 mm
89 mm
93 mm
Wind
3 m/s
3 m/s
3 m/s
Avg. water temperature
+5°C
+6°C
+9°C
Humidity
74%
71%
73%
Air pressure
1010 HPa
1013 HPa
1011 HPa
Sunny days
4
4
2
Cloudy days
7
7
7
Rainy days
7
17
20
Snowy days
12
4
0
May weather is still as ok as in April.It’s getting warmer as May arrives. The average maximum temperature goes up from +4°C to +9°C during the day.Prepare for more rain. Average rainfall goes from 60 mm to 89 mm.It feels drier, as humidity decreases from 74% to 71%.The average wind speed doesn’t change much during May, staying around 3 m/s.The amount of sunny days stay about the same, averaging 4 sunny days during the month.
Wind speed in Tromso in May based on historical data.
Last Year
Historical Data
The average wind speed is 5 m/s getting up to 12 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Tromso is gradually increasing during May, going from 1 m/s to 7 m/s over the course of the month.
Rain
Amount of rainfall in mm during May in Tromso based on historical data.
Last Year
Historical Data
Typically, there is a 81% chance of rain on an average day in May, with total rainfall of approximately 171 mm. The maximum amount of rainfall per day is around 25 mm, which is moderate rain.May is a pretty wet month with over 25 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Tromso wettest month is September, where a typical day has a 70% chance of precipitation and 128 mm of rainfall per day. February, on the other hand, is the driest month with a mere 7% chance of precipitation and 47 mm of rainfall per day.
Snow
Amount of snow in mm during May in Tromso based on historical data.
Last Year
Historical Data
Typically, there is a 6% chance of snow on an average day in May, with a total monthly snowfall of approximately 16 mm.
Here’s how May is compared with other months in the amount of snow, total mm:
How was the weather last May in Tromso?
This is the weather in Tromso in May 2023:
1 May
☀️
+7°C
2 May
☁️
+2°C
3 May
☁️
+1°C
4 May
🌨️
+3°C
5 May
☁️
+5°C
6 May
☀️
+6°C
7 May
☁️
+7°C
8 May
🌧️
+7°C
9 May
☁️
+9°C
10 May
🌧️
+9°C
11 May
🌧️
+9°C
12 May
🌧️
+8°C
13 May
☁️
+11°C
14 May
🌧️
+10°C
15 May
☀️
+18°C
16 May
☁️
+11°C
17 May
🌧️
+8°C
18 May
☁️
+8°C
19 May
🌧️
+11°C
20 May
🌧️
+11°C
21 May
🌧️
+13°C
22 May
☀️
+16°C
23 May
🌧️
+12°C
24 May
🌧️
+11°C
25 May
🌧️
+8°C
26 May
🌨️
+5°C
27 May
🌧️
+9°C
28 May
🌧️
+10°C
29 May
🌧️
+8°C
30 May
🌧️
+7°C
31 May
🌧️
+8°C
In May 2023 Tromso had 4 sunny days, 8 cloudy days, and 17 rainy days. The average maximum temperature was +9°C, with an absolute maximum of +18°C and a minimum of +1°C. The average humidity was 79%, with a maximum of 100% and a minimum of 39%. The average wind speed was 5 m/s, with a maximum of 14 m/s and a minimum of 0 m/s.
Are you planning a trip in May?
Climate Change over Years
This is how Tromso climate have been changing during last 43 years period.
The climate in Tromso in May has not changed much over the last 43 years.
The average temperature was the lowest in 1981 (+4°C) and the highest in 1990 (+8°C). The driest year was 1980 with only 614 mm of rainfall, and the wettest year was 1989 with 1352 mm.
FAQ
Frequently asked questions about the weather in Tromso in May:
Is May a good time to visit Tromso?
It’s always a good time to visit Tromso, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Tromso in May?
Not really, May is not the best time to sunbathe, unless you visit a local solarium.
Can you swim in Tromso in May?
Swimming in Tromso in May is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Tromso rainy in May?
Tromso is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Tromso in May?
Usually, it’s not very sunny in Tromso in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Tromso, 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.
