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🇳🇴 Weather in Tromsø in April
This is what the weather in Tromsø (Northern Norway, Norway) was like in April over the years 2017–2026.
Key facts at a glance
Prevailing weather: Snow
Avg. daytime high
0.5 °C
-0.8 °C – 3.5 °C
Avg. night-time low
-4.8 °C
-7.5 °C – -2.3 °C
Avg. rain days in period
18.3
61 % of days · ≥ 1.0 mm
Avg. precipitation in period
97.1 mm
47.0 mm – 148 mm
Avg. cloud cover
76 %
This data source has no sunshine hours – average cloud cover is shown instead.
Avg. sea temperature
4.5 °C
Sea temperature available for 3 of 10 years.
Extremes: Highest temperature 11.0 °C (19 Apr 2026) · Lowest temperature -18.8 °C (5 Apr 2024) · Avg. daily peak wind 15 km/h
Weather mix of all days
- 21Sunny
- 52Partly cloudy
- 44Cloudy
- 27Light rain
- 21Rain
- 135Snow
Summary
- On average 0.5 °C during the day and -4.8 °C at night.
- On average 18.3 rain days (Rain day = at least 1.0 mm of precipitation) with 97.1 mm of precipitation in total.
- The sea averaged 4.5 °C.
- Prevailing weather: Snow.
- Warmest year: 2026 (avg. 3.5 °C), coolest: 2017 (avg. -0.8 °C).
- Wettest year: 2025 (148 mm), driest: 2018 (47.0 mm).
- Extremes: 11.0 °C on 19 Apr 2026 and -18.8 °C on 5 Apr 2024.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Avg. daytime high: 2017 -1°, 2018 1°, 2019 1°, 2020 -1°, 2021 0°, 2022 0°, 2023 1°, 2024 -1°, 2025 0°, 2026 4°. Avg. night-time low: 2017 -8°, 2018 -4°, 2019 -3°, 2020 -6°, 2021 -5°, 2022 -4°, 2023 -3°, 2024 -7°, 2025 -5°, 2026 -2°. Sea temperature: 2017 –, 2018 –, 2019 –, 2020 –, 2021 –, 2022 –, 2023 4°, 2024 –, 2025 4°, 2026 5°.
Precipitation & rain days
Precipitation (mm): 2017 86, 2018 47, 2019 98, 2020 112, 2021 136, 2022 96, 2023 112, 2024 57, 2025 148, 2026 79.
Year by year
2026
Avg. max3.5°Avg. min-2.3°- Rain days
- 15 Rain days
- Precipitation
- 78.5 mm
- Avg. cloud cover
- 63 % cloudy
- Sea temperature
- 5.1 °C
Max 11.0 °C · Min -8.3 °C
2025
Avg. max-0.4°Avg. min-5.1°- Rain days
- 28 Rain days
- Precipitation
- 148 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- 4.3 °C
Max 3.2 °C · Min -11.5 °C
2024
Avg. max-0.5°Avg. min-7.0°- Rain days
- 12 Rain days
- Precipitation
- 57.2 mm
- Avg. cloud cover
- 56 % cloudy
- Sea temperature
- –
Max 2.2 °C · Min -18.8 °C
2023
Avg. max1.4°Avg. min-3.0°- Rain days
- 19 Rain days
- Precipitation
- 112 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- 4.1 °C
Max 6.4 °C · Min -10.8 °C
2022
Avg. max0.3°Avg. min-4.4°- Rain days
- 22 Rain days
- Precipitation
- 96.1 mm
- Avg. cloud cover
- 79 % cloudy
- Sea temperature
- –
Max 7.2 °C · Min -14.3 °C
2021
Avg. max-0.1°Avg. min-4.7°- Rain days
- 23 Rain days
- Precipitation
- 136 mm
- Avg. cloud cover
- 87 % cloudy
- Sea temperature
- –
Max 3.3 °C · Min -13.1 °C
2020
Avg. max-0.8°Avg. min-6.2°- Rain days
- 22 Rain days
- Precipitation
- 112 mm
- Avg. cloud cover
- 87 % cloudy
- Sea temperature
- –
Max 1.2 °C · Min -12.8 °C
2019
Avg. max1.4°Avg. min-3.4°- Rain days
- 15 Rain days
- Precipitation
- 97.7 mm
- Avg. cloud cover
- 80 % cloudy
- Sea temperature
- –
Max 7.1 °C · Min -12.9 °C
2018
Avg. max0.8°Avg. min-4.5°- Rain days
- 13 Rain days
- Precipitation
- 47.0 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- –
Max 3.8 °C · Min -14.5 °C
2017
Avg. max-0.8°Avg. min-7.5°- Rain days
- 14 Rain days
- Precipitation
- 86.0 mm
- Avg. cloud cover
- 74 % cloudy
- Sea temperature
- –
Max 1.1 °C · Min -15.7 °C
Frequently asked questions
- How warm is it in Tromsø in April?
- Daytime highs averaged 0.5 °C, night-time lows -4.8 °C. The highest value of the past 10 years was 11.0 °C (19 Apr 2026), the lowest -18.8 °C (5 Apr 2024).
- How often does it rain in Tromsø in April?
- On average there were 18.3 rain days (at least 1 mm) with 97.1 mm of precipitation in total.
- How warm is the sea in Tromsø in April?
- The sea temperature averaged 4.5 °C (open-sea point approx. 3 km from the town).
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Other destinations in April
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Sea measuring point approx. 3 km from the location (69.670, 18.910)
- Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)