Sri Lanka Weather by Month: Temperature, Wind, UV
What is the average monthly temperature in Sri Lanka?
The average monthly temperature in Sri Lanka ranges from 26.5°C (79.7°F) in January to 28.8°C (83.8°F) in May. Sri Lanka temperature by month is given in the table below.
| Month | Celsius | Fahrenheit |
|---|---|---|
| January | 26.5°C | 79.7°F |
| February | 27.2°C | 81.0°F |
| March | 27.8°C | 82.0°F |
| April | 28.4°C | 83.1°F |
| May | 28.8°C | 83.8°F |
| June | 28.8°C | 83.8°F |
| July | 28.4°C | 83.1°F |
| August | 28.8°C | 83.8°F |
| September | 27.0°C | 80.6°F |
| October | 26.9°C | 80.4°F |
| November | 27.2°C | 81.0°F |
| December | 27.4°C | 81.3°F |
What is the hottest month in Sri Lanka?
The hottest months in Sri Lanka are May, June and August. During May the average temperature outside is 28.8°C (83.8°F), in June it is 28.8°C (83.8°F) and during August the air temperature is around 28.8°C (83.8°F).
What is the coldest month in Sri Lanka?
The coldest months in Sri Lanka are January, October and September. In January the average air temperature drops to 26.5°C (79.7°F), in October air temperature is 26.9°C (80.4°F) and during September it is 27°C (80.6°F).
How much does it rain on average in Sri Lanka?
On average it rains for 12 month(s) in Sri Lanka with an average of 27.9 days of rain per month. In total Sri Lanka has 335 rainy days in a year.
When does it rain the most in Sri Lanka?
In Sri Lanka it rains the most during the following months.
- September - on average 40.45mm (1.59 inches) of rainfall per day.
- October - on average 37.76mm (1.49 inches) of rainfall per day.
- November - on average 33.95mm (1.34 inches) of rainfall per day.
- May - on average 21.11mm (0.83 inches) of rainfall per day.
- December - on average 17.46mm (0.69 inches) of rainfall per day.
- April - on average 16.68mm (0.66 inches) of rainfall per day.
Does it snow in Sri Lanka?
No, it doesn't snow in Sri Lanka.
When is it windy in Sri Lanka?
The windiest months in Sri Lanka are September, August and June. In September the average windspeed is 23.2 km/h (14.4 mph), during August the windspeed is 22.3 km/h (13.9 mph) and in June the windspeed is 21.8 km/h (13.5 mph).
What are the least windy months in Sri Lanka?
The least windy months in Sri Lanka are November, March and February. In November the average windspeed is 15.5 km/h (9.6 mph), during March the windspeed is 15.9 km/h (9.9 mph) and in February the windspeed is 16.3 km/h (10.1 mph).
When is it cloudy in Sri Lanka?
The cloudiest months in Sri Lanka are September, June and October. On average in September 68.4% of sky is covered by clouds, in June 64.9% is covered by clouds and in October clouds cover about 63.4% of sky.
When does Sri Lanka have the clearest sky?
Sri Lanka has the clearest sky in March, April and February. In March 46.7% of sky is covered by clouds, in April clouds cover around 47.9% and during February clouds cover about 48.7% of sky.
What is the average daylight duration in Sri Lanka?
The average daylight duration in Sri Lanka is 12 hours 7 minutes 20 seconds.
Which months have the most daylight in Sri Lanka?
The longest days in Sri Lanka are during June, July and May.
- June - 12 hours 30 minutes 53 seconds of daylight.
- July - 12 hours 28 minutes 38 seconds of daylight.
- May - 12 hours 26 minutes 1 seconds of daylight.
Which months have the least daylight in Sri Lanka?
The shortest days in Sri Lanka are during December, January and November.
- December - 11 hours 43 minutes 48 seconds of daylight.
- January - 11 hours 46 minutes 14 seconds of daylight.
- November - 11 hours 48 minutes 41 seconds of daylight.
What are the humidity levels in Sri Lanka throughout the year?
Humidity levels in Sri Lanka range from 76.2% in January to 87.1% in October.
What are the pressure levels in Sri Lanka throughout the year?
Pressure levels in Sri Lanka change from 1009 mb (millibars) in June to 1011.6 mb in October.
What is the visibility in Sri Lanka throughout the year?
Visibility in Sri Lanka changes from lowest 12 km (7.5 miles) in November to highest 13.1 km (8.1 miles) in August.
What are the UV levels in Sri Lanka throughout the year?
UV levels change in Sri Lanka from 7.5 in September to 9.6 in March.
Which months have the highest UV levels in Sri Lanka throughout the year?
In Sri Lanka the highest UV index is during March, April and February. During March the average UV index is 9.6, in April UV level is 9.6 and in February UV index is around 9.1.
Which months have the lowest UV levels in Sri Lanka throughout the year?
The lowest UV levels in Sri Lanka are in September, May and December. In September the average UV index is around 7.5, in May UV index is 7.9 and during December UV level is 7.9.