Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January is a hot winter month in Kelaniya, Sri Lanka, with an average temperature varying between 23.1°C (73.6°F) and 30.8°C (87.4°F). January's onset brings an average high-temperature of a tropical 30.8°C (87.4°F), showing a minute difference from December's 29.9°C (85.8°F). Weather in January »
Weather in February
February, the last month of the winter in Kelaniya, is also a hot month, with an average temperature ranging between min 23.3°C (73.9°F) and max 31.4°C (88.5°F). The arrival of February brings an average high-temperature of a still hot 31.4°C (88.5°F), subtly diverging from January's 30.8°C (87.4°F). Weather in February »
Weather in March
March, the first month of the spring in Kelaniya, is still a tropical month, with an average temperature fluctuating between 24.3°C (75.7°F) and 31.8°C (89.2°F). The highest point of temperatures falls in March and April, when the average high-temperature ascends to 31.8°C (89.2°F). March's heat index is calculated to be a scorching 42°C (107.6°F). Weather in March »
Weather in April
April, the same as March, in Kelaniya, Sri Lanka, is a hot spring month, with an average temperature fluctuating between 25.8°C (78.4°F) and 31.8°C (89.2°F). March and April are characterised by peak temperatures, with an average high of 31.8°C (89.2°F). The heat index for April is calculated to be an extremely hot 42°C (107.6°F). Weather in April »
Weather in May
The last month of the spring, May, is another tropical month in Kelaniya, Sri Lanka, with an average temperature fluctuating between 26.3°C (79.3°F) and 30.6°C (87.1°F). Kelaniya experiences an average high-temperature of a still hot 30.6°C (87.1°F) in May, subtly different from April's 31.8°C (89.2°F). Weather in May »
Weather in June
June, the first month of the summer in Kelaniya, is also a moderately hot month, with an average temperature varying between 25.8°C (78.4°F) and 29.3°C (84.7°F). The shift into June reveals an average high-temperature of a moderately hot 29.3°C (84.7°F), closely mirroring May's climate. Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Kelaniya, Sri Lanka, with an average temperature ranging between min 25.3°C (77.5°F) and max 28.9°C (84°F). Kelaniya sees its lowest temperatures during July and August, with an average high-temperature of 28.9°C (84°F). The heat index value for July is calculated to be a fiery hot 35°C (95°F). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Kelaniya, Sri Lanka, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 25.2°C (77.4°F). In Kelaniya, the coldest period comes during July and August, when the average high-temperature touches 28.9°C (84°F). The average heat index in August is calculated to be a torrid 35°C (95°F). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Kelaniya, Sri Lanka, with an average temperature varying between 24.9°C (76.8°F) and 29.1°C (84.4°F). In September, Kelaniya experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 29.1°C (84.4°F), closely mirroring the climate in August. Weather in September »
Weather in October
October is a tropical autumn month in Kelaniya, Sri Lanka, with an average temperature ranging between max 30°C (86°F) and min 25°C (77°F). October brings an average high-temperature of a tropical 30°C (86°F), showing a slight difference from September's 29.1°C (84.4°F). Weather in October »
Weather in November
The last month of the autumn, November, is another tropical month in Kelaniya, Sri Lanka, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 30.1°C (86.2°F). The onset of November marks an average high-temperature of a still hot 30.1°C (86.2°F), hardly differing from October's 30°C (86°F). Weather in November »
Weather in December
The first month of the winter, December, is still a warm month in Kelaniya, Sri Lanka, with an average temperature ranging between max 29.9°C (85.8°F) and min 23.7°C (74.7°F). With the onset of December, a modest change to a warm 29.9°C (85.8°F) from November's 30.1°C (86.2°F) is noted in high-temperature. Weather in December »
[Resources]Frequently asked questions
What is the least humid month in Kelaniya?
The months with the lowest humidity in Kelaniya are January and February, with an average relative humidity of 74%.
What is the driest month in Kelaniya?
The month with the least rainfall is January, when the rain falls for 11.6 days and typically collects 40mm (1.57") of precipitation.
How many days does it rain in Kelaniya?
In Kelaniya, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.
What month has the most sunshine in Kelaniya?
The month with the most sunshine is January, with an average of 9.1h of sunshine.
When is the highest UV index in Kelaniya?
The months with the highest UV index in Kelaniya are January through April, July, September, November and December, with an average maximum UV index of 7.
What month is the hottest in Kelaniya?
Kelaniya's warmest period falls in March and April, when the average high-temperatures ascend to 31.8°C (89.2°F).
What are the months with the lowest UV index in Kelaniya?
The months with the lowest UV index in Kelaniya, Sri Lanka, are May, June, August and October, with an average maximum UV index of 6.
What are the most humid months in Kelaniya?
The months with the highest humidity in Kelaniya, Sri Lanka, are June through August, with an average relative humidity of 83%.
What is the wettest month in Kelaniya?
The month with the most rainfall is June, when the rain falls for 29.3 days and typically aggregates up to 341mm (13.43") of precipitation.
When are the longest days in Kelaniya?
With an average of 12h and 30min of daylight, June has the longest days of the year in Kelaniya.
What is the coldest month in Kelaniya?
Kelaniya experiences the lowest of its temperatures in July and August, when the average high-temperatures rise to 28.9°C (84°F).
What is the month with the least sunshine in Kelaniya?
The month with the least sunshine in Kelaniya, Sri Lanka, is November, with an average of 6.7h of sunshine.
What is the month with the shortest days in Kelaniya?
December has the shortest days of the year, with an average of 11h and 42min of daylight.
Is there Daylight Saving Time (DST) in Kelaniya?
Kelaniya, Sri Lanka, does not observe Daylight Saving Time (DST). +0530 timezone is used over the entire year.
Average temperature
Kelaniya, Sri Lanka
The warmest months (with the highest average high temperature) are March and April (31.8°C).
The months with the lowest average high temperature are July and August (28.9°C).
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.1°C).
Average pressure
Kelaniya, Sri Lanka
- Average pressure in January:
1011.6mbar - Average pressure in February:
1011.3mbar - Average pressure in March:
1010.7mbar - Average pressure in April:
1009.7mbar - Average pressure in May:
1008.6mbar - Average pressure in June:
1008.7mbar
- Average pressure in July:
1008.7mbar - Average pressure in August:
1009.1mbar - Average pressure in September:
1009.8mbar - Average pressure in October:
1009.9mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1010.4mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed
Kelaniya, Sri Lanka
- Average wind speed in January:
12.8km/h - Average wind speed in February:
9.9km/h - Average wind speed in March:
8km/h - Average wind speed in April:
8.6km/h - Average wind speed in May:
12.9km/h - Average wind speed in June:
15.1km/h
- Average wind speed in July:
14.1km/h - Average wind speed in August:
14.2km/h - Average wind speed in September:
13.2km/h - Average wind speed in October:
10.2km/h - Average wind speed in November:
8.9km/h - Average wind speed in December:
11.5km/h
The windiest month (with the highest average wind speed) is June (15.1km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).
Average humidity
Kelaniya, Sri Lanka
The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall
Kelaniya, Sri Lanka
- Average rainfall in January:
40mm - Average rainfall in February:
47mm - Average rainfall in March:
66mm - Average rainfall in April:
137mm - Average rainfall in May:
306mm - Average rainfall in June:
341mm
- Average rainfall in July:
256mm - Average rainfall in August:
287mm - Average rainfall in September:
206mm - Average rainfall in October:
237mm - Average rainfall in November:
191mm - Average rainfall in December:
148mm
The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days
Kelaniya, Sri Lanka
- Average rainfall days in January:
11.6 days - Average rainfall days in February:
13.8 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
25.4 days - Average rainfall days in May:
28.8 days - Average rainfall days in June:
29.3 days
- Average rainfall days in July:
29.8 days - Average rainfall days in August:
30.2 days - Average rainfall days in September:
26.9 days - Average rainfall days in October:
27 days - Average rainfall days in November:
25.7 days - Average rainfall days in December:
21.1 days
The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (11.6 days).
Average daylight / Average sunshine
Kelaniya, Sri Lanka
- Average daylight in January:
11h and 5min - Average daylight in February:
11h and 5min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 2min - Average daylight in June:
12h and 3min
- Average daylight in July:
12h and 3min - Average daylight in August:
12h and 2min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 5min - Average daylight in December:
11h and 4min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January:
9h and 1min - Average sunshine in February:
9h and 0min - Average sunshine in March:
9h and 0min - Average sunshine in April:
8h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
8h and 0min
- Average sunshine in July:
7h and 4min - Average sunshine in August:
7h and 0min - Average sunshine in September:
7h and 2min - Average sunshine in October:
7h and 4min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 5min
The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days
Kelaniya, Sri Lanka
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
8.2 days - Average sunshine days in April:
2.6 days - Average sunshine days in May:
1.3 days - Average sunshine days in June:
0.3 days
- Average sunshine days in July:
0.4 days - Average sunshine days in August:
0.3 days - Average sunshine days in September:
1.5 days - Average sunshine days in October:
1.7 days - Average sunshine days in November:
3.6 days - Average sunshine days in December:
8.3 days
The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are June and August (0.3 days).
Average UV index
Kelaniya, Sri Lanka
The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).
Average cloud cover
Kelaniya, Sri Lanka
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility
Kelaniya, Sri Lanka
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
Kelaniya, Sri Lanka
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
