Average temperature in May is 4.5 °C
Average daytime temperature is 7.1 °C
Average night temperature is 1.7 °C
Absolute maximum temperature: 16 °C
Absolute minimum temperature: -5.6 °C
Number of sunny days: 3
Number of rainy days: 26
Number of snow days: 2
Precipitation sum: 238 mm
* Weather data for Tromsø Norway is based on climate observations for 2023 year
| May (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 4.9 | 0.6 | -0.4 | 1.4 | 2.6 | 4.4 | 5.5 | 5.6 | 10.3 | 6.8 | 8.7 | 7.2 | 8.7 | 7.5 | 14.6 | 8.9 | 6.7 | 5.4 | 8.5 | 9.6 | 11.8 | 16 | 12 | 10.2 | 6.3 | 3.5 | 6.3 | 8.4 | 6.3 | 6 | 6 |
| Apparent max temperature | 2.5 | -2.8 | -4.5 | -2.4 | -0.8 | 1.2 | 2.2 | 3.1 | 7.8 | 4.6 | 6.9 | 5.1 | 5.2 | 5.5 | 12.2 | 6.8 | 4.3 | 1.5 | 5.8 | 6.1 | 8.1 | 13.8 | 10.4 | 6.9 | 1.3 | -0.1 | 2.5 | 6.8 | 2.7 | 2.5 | 3.3 |
| Mean temperature | 1.5 | -1.7 | -2.6 | -0.6 | 0.9 | 1.1 | 2.6 | 3.9 | 6.4 | 5.6 | 5.6 | 5 | 6.2 | 5.6 | 8.3 | 5.9 | 4.2 | 3.6 | 6.8 | 8 | 8.7 | 11 | 8.9 | 7.5 | 4.4 | 2.1 | 3.4 | 5.9 | 4.2 | 4 | 3.3 |
| Apparent mean temperature | -6 | -8.5 | -9.2 | -8.9 | -6.6 | -7.1 | -3 | -1.1 | 0.9 | 2.2 | 1.9 | 1.2 | 1.5 | 1.5 | -0.9 | -0.1 | -1.2 | -1.1 | 0.7 | 3.1 | 3.7 | 2 | 3.8 | 0.9 | -1.8 | -3.8 | -3.5 | 1.5 | -0.7 | 0 | -5 |
| Minimum temperature | -2.8 | -5.4 | -5.6 | -5.4 | -2.8 | -3.4 | 0.5 | 2.1 | 3.2 | 4.9 | 4.4 | 4 | 4.1 | 4.6 | 2.3 | 2.7 | 1.8 | 1.7 | 3.5 | 6.8 | 5.8 | 4.5 | 5.8 | 4.7 | 2.3 | 0.6 | 0.6 | 3.8 | 2.8 | 2.9 | -1.5 |
| Apparent min temperature | -1.4 | -5.7 | -6.4 | -4.1 | -2.5 | -2.2 | -0.8 | 1.2 | 3.9 | 3.3 | 3.4 | 2.9 | 3 | 3.1 | 5.8 | 3.6 | 1.7 | 0.2 | 4 | 4.5 | 6.4 | 9.1 | 7.2 | 4 | -0.1 | -1.9 | -0.2 | 3.3 | 0.9 | 1.2 | -0.4 |
| May | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 18.7 | 18.9 | 19.1 | 19.3 | 19.5 | 19.7 | 19.9 | 20.1 | 20.3 | 20.6 | 20.8 | 21.1 | 21.3 | 21.6 | 22 | 22.4 | 22.9 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Sunshine duration (h) | 16.1 | 6.7 | 15.3 | 8.2 | 8.7 | 16.3 | 0 | 0 | 9.3 | 0 | 0.4 | 0.5 | 3.7 | 0.1 | 16.2 | 2.6 | 2.9 | 1.9 | 0.2 | 0 | 2 | 18 | 5.2 | 8.6 | 4.5 | 0.7 | 5.6 | 3.9 | 5.7 | 0 | 6.8 |
| Precipitation (mm) | 0 | 3.3 | 1.3 | 5.1 | 4.1 | 0 | 7.6 | 17.1 | 0.8 | 5.7 | 10 | 8.2 | 2.8 | 7.5 | 2 | 0.6 | 6.8 | 2.1 | 6.2 | 6.3 | 9.4 | 0 | 11.3 | 2.4 | 11 | 24.6 | 3.6 | 24 | 14.5 | 23.5 | 16.3 |
| Precipitation hours | 0 | 15 | 11 | 16 | 17 | 0 | 18 | 24 | 5 | 16 | 15 | 19 | 12 | 18 | 2 | 5 | 16 | 6 | 14 | 21 | 18 | 0 | 18 | 6 | 21 | 24 | 17 | 20 | 19 | 24 | 24 |
| Wind speed (m/s) | 4.8 | 13.8 | 11.4 | 10.3 | 11.2 | 8.8 | 10.4 | 10.9 | 6.1 | 7.6 | 10.1 | 9.1 | 17.5 | 9.7 | 9.4 | 7.7 | 8.8 | 13.5 | 16.6 | 18.8 | 20.9 | 9.5 | 9.5 | 21.3 | 24.8 | 18 | 13.5 | 15.3 | 16.6 | 13.2 | 24 |
In May 2023, the highest daytime temperature in Tromsø was 16°C.
While the minimum temperature at night dropped to -5.6°C.
The average nighttime and daytime temperatures during May in Tromsø are 1.7°C and 7.1°C respectively.
The precipitation sum in May is about 238 mm.