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Tromso in July: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Tromso in July will be like? Take a look at our weather guide for Tromso, based on historical data.
Check flight prices to Tromso on Avionero:
July

Weather in Tromso in July 2025

OK Weather
Mild
🌧️
Rainy
🌊
Cold water
If you plan to visit Tromso in July, the weather is typically alright, with an average high temperature of +17°C during the day and approximately 3 sunny days. Expect some rainy, though, as there are typically 20 rainy days in the month and around 102 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • July is usually the hottest month of the year in Tromso;

Average weather

☀️
+17°C
Avg. max. temperature
+4°C
Min.
+30°C
Max.
102 mm
Total precipitation
78%
Avg. humidity
2 m/s
Avg. wind
3 ☀️
Sunny Days
8 ⛅️
Cloudy
20 🌦
Rainy
Our opinion: Tromso has OK weather in July.

Average temperature in Tromso in July

Here are the expected maximum, average and minimum temperatures in Tromso for July based on the historical data.
Last Year
Historical Data

Going from a maximum of +28°C during the day to a minimum of +7°C during the night, the temperature in July averages around +19°C.

The average maximum temperature goes up 14% by the end of the month, compared with the beginning of the month, from +20°C to +23°C.

Is Tromso warm or cold in July?

Tromso is typically mild in July.

Maximum temperatures go up compared to the previous month from +14°C to +17°C. The minimum temperature also goes up from +8°C to +10°C.

Pack a light jacket as it will be warm in the day and cool in the evenings.

July is the hottest month in Tromso, here is the comparison with other months:

Water temperature in Tromso in July

Water in Tromso in July is Cold. It varies from +9°C to +13°C, with an average of +11°C. The air temperature averaging +17°C is higher than the water temperature.

The water temperature in July is one of the warmest of the entire 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 July?

We would not recommend swimming in Tromso in July, the water is very cold (+11°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 July

Tromso weather looks like this, on average, in July and the surrounding months.
JuneJulyAugust
Avg. temperature
+14°C+17°C+16°C
Min. temperature
0°C+4°C+2°C
Max. temperature
+31°C+30°C+29°C
Rainfall
93 mm102 mm109 mm
Wind
3 m/s2 m/s2 m/s
Avg. water temperature
+9°C+11°C+11°C
Humidity
73%78%79%
Air pressure
1011 HPa1010 HPa1010 HPa
Sunny days
232
Cloudy days
789
Rainy days
202020
Snowy days
000

July weather is still as ok as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +14°C to +17°C during the day. Prepare for more rain. Average rainfall goes from 93 mm to 102 mm. Humidity rises from 73% to 78%. Winds are calmer in comparison to June, going down from 3 m/s to 2 m/s on average. The good news is there are likely to be more sunny days in July, from 2 to 3.

August brings much the same weather, it remains ok.

Wind

Wind speed in Tromso in July based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 6 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 decreasing during July, going from 6 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during July in Tromso based on historical data.
Last Year
Historical Data
Typically, there is a 26% chance of rain on an average day in July, with total rainfall of approximately 28 mm. The maximum amount of rainfall per day is around 11 mm, which is considered light rain. On average, there are about 8 rainy days during July, so prepare to bring an umbrella.
Here’s how July 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.

How was the weather last July in Tromso?

This is the weather in Tromso in July 2023:
1 July
☀️
+20°C
2 July
☁️
+11°C
3 July
☀️
+18°C
4 July
☁️
+17°C
5 July
☁️
+15°C
6 July
☁️
+16°C
7 July
☀️
+21°C
8 July
☁️
+17°C
9 July
☁️
+16°C
10 July
☀️
+19°C
11 July
☁️
+23°C
12 July
☀️
+28°C
13 July
☀️
+27°C
14 July
☀️
+23°C
15 July
🌧️
+16°C
16 July
☁️
+22°C
17 July
🌧️
+21°C
18 July
🌧️
+15°C
19 July
☁️
+13°C
20 July
☁️
+15°C
21 July
☀️
+18°C
22 July
☁️
+20°C
23 July
☁️
+19°C
24 July
☀️
+19°C
25 July
☀️
+20°C
26 July
☀️
+21°C
27 July
☁️
+17°C
28 July
☁️
+16°C
29 July
☁️
+14°C
30 July
☁️
+17°C
31 July
☁️
+23°C
In July 2023 Tromso had 11 sunny days, 17 cloudy days, and 3 rainy days. The average maximum temperature was +19°C, with an absolute maximum of +28°C and a minimum of +11°C. The average humidity was 77%, with a maximum of 100% and a minimum of 32%. The average wind speed was 3 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in July?

Climate Change over Years

This is how Tromso climate have been changing during last 43 years period.

The climate in Tromso in July 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 July:

Is July a good time to visit Tromso?

It’s always a good time to visit Tromso, but the weather is changeable in July, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Tromso in July?

July has mild temperatures in Tromso. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Can you swim in Tromso in July?

Swimming in Tromso in July is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is Tromso rainy in July?

Tromso is often rainy in July. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Tromso in July?

Usually, it’s not very sunny in Tromso in July, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Norway

Check out the weather for other cities in Norway.

Monthly weather in Tromso

Source of the data

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.