Average temperature in May is 27.3 °C
Average daytime temperature is 29.8 °C
Average night temperature is 25.3 °C
Absolute maximum temperature: 30.8 °C
Absolute minimum temperature: 23.6 °C
Number of sunny days:
Number of rainy days: 31
Number of snow days:
Precipitation sum: 233 mm
* Weather data for Colombo Sri Lanka 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 | 29.2 | 28.7 | 27.7 | 30.1 | 27.9 | 30.6 | 29.7 | 30 | 29.9 | 30.3 | 28.7 | 29.1 | 30.2 | 28.3 | 30.3 | 30.6 | 30.7 | 30.3 | 29.9 | 29.4 | 29.1 | 29.5 | 30.2 | 30.4 | 30.4 | 30.6 | 30.6 | 30 | 30.8 | 29.5 | 30.3 |
Apparent max temperature | 34.7 | 34 | 33 | 38.7 | 33.6 | 36.6 | 33.9 | 35.6 | 35.8 | 35.3 | 32.9 | 33.9 | 35.5 | 32.8 | 35.8 | 36.5 | 37.7 | 36.4 | 35.6 | 34.9 | 34.6 | 35.6 | 37 | 36.7 | 36.6 | 36.8 | 36.9 | 35.9 | 37.6 | 35.3 | 36.2 |
Mean temperature | 26.2 | 26.8 | 25.9 | 26.5 | 26.3 | 26.4 | 27.2 | 27.2 | 26.3 | 26.9 | 26.8 | 27.2 | 28.2 | 27.5 | 28.6 | 28.4 | 28.3 | 27.8 | 27.3 | 27.2 | 27 | 27.1 | 27.8 | 27.9 | 28.5 | 28.2 | 27.7 | 28.1 | 27.8 | 27.1 | 27.5 |
Apparent mean temperature | 28.9 | 30.5 | 29.6 | 28.6 | 27.7 | 28.2 | 30.2 | 30.7 | 29.8 | 29.2 | 29.5 | 29.9 | 30.7 | 31.1 | 31.4 | 32.8 | 31 | 30.6 | 30.7 | 29.6 | 29.5 | 30.1 | 30.2 | 30.9 | 31.4 | 30.4 | 30 | 31.4 | 31.1 | 30.8 | 29.5 |
Minimum temperature | 24.7 | 25 | 24.4 | 24.1 | 23.6 | 24 | 24.9 | 25.3 | 24.5 | 24.4 | 25.4 | 25.7 | 26.2 | 26.3 | 26.7 | 26.6 | 25.7 | 25.6 | 25.4 | 25.3 | 25.2 | 25.2 | 25.3 | 25.7 | 26.1 | 25.7 | 25.1 | 25.8 | 25.5 | 25.4 | 24.7 |
Apparent min temperature | 30.9 | 32 | 31.1 | 32.5 | 31.6 | 31.4 | 32.4 | 32.9 | 31.7 | 32 | 31.1 | 31.8 | 32.9 | 32.1 | 33.8 | 34.5 | 34.4 | 33.1 | 32.3 | 32 | 31.7 | 32 | 33.1 | 33.2 | 33.5 | 33.4 | 33.1 | 33.4 | 33.6 | 32.5 | 32.7 |
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) | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 |
Sunshine duration (h) | 7.1 | 4.1 | 2.5 | 6.5 | 0 | 8.1 | 3.3 | 4.6 | 7.3 | 6.2 | 10.6 | 8.8 | 10.1 | 0.1 | 11.1 | 11 | 10.9 | 11 | 11.1 | 11.1 | 10.8 | 11.2 | 11.2 | 11.3 | 11.3 | 11 | 11.1 | 10.2 | 11 | 10.2 | 11.3 |
Precipitation (mm) | 26.4 | 7.3 | 25.2 | 34.1 | 7.9 | 17.7 | 9.2 | 11.4 | 13 | 8.2 | 8.1 | 5.6 | 6.7 | 5.3 | 2.6 | 3.8 | 4.9 | 3.1 | 1.7 | 3.6 | 2.4 | 1.7 | 0.5 | 0.7 | 1.3 | 6.8 | 3.3 | 1.9 | 2.8 | 2.6 | 3.5 |
Precipitation hours | 22 | 17 | 15 | 23 | 21 | 22 | 20 | 16 | 18 | 19 | 20 | 23 | 13 | 16 | 12 | 14 | 14 | 6 | 16 | 17 | 16 | 8 | 5 | 4 | 10 | 19 | 16 | 12 | 8 | 15 | 17 |
Wind speed (m/s) | 19.6 | 13.2 | 15.4 | 9.7 | 10.8 | 15 | 18.9 | 14.1 | 16.6 | 18.9 | 20.7 | 20.5 | 21.7 | 18.4 | 20 | 20.5 | 15.1 | 15.9 | 17.4 | 17.3 | 19.3 | 17.7 | 14.8 | 17.3 | 18.6 | 19.7 | 14.8 | 18.6 | 14.4 | 15.5 | 18.2 |
In May 2023, the highest daytime temperature in Colombo was 30.8°C.
While the minimum temperature at night dropped to 23.6°C.
The average nighttime and daytime temperatures during May in Colombo are 25.3°C and 29.8°C respectively.
The precipitation sum in May is about 233 mm.