Climate and monthly weather forecast
Kolonnawa, Sri Lanka

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Weather in January

January in Kolonnawa, Sri Lanka, is a hot winter month, with an average temperature fluctuating between 23.1°C (73.6°F) and 30.8°C (87.4°F). January's onset records a minor alteration in the average high-temperature to a hot 30.8°C (87.4°F) from December's 29.9°C (85.8°F). Weather in January »

Weather in February

The last month of the winter, February, is another tropical month in Kolonnawa, Sri Lanka, with an average temperature fluctuating between 31.4°C (88.5°F) and 23.3°C (73.9°F). The start of February marks an average high-temperature of a still tropical 31.4°C (88.5°F), hardly distinguishable from the conditions in January. Weather in February »

Weather in March

March, the first month of the spring in Kolonnawa, is still a tropical month, with an average temperature fluctuating between 24.3°C (75.7°F) and 31.8°C (89.2°F). Kolonnawa's warmest season falls during March and April, averaging a high-temperature of 31.8°C (89.2°F). March's heat index is estimated at a blistering 42°C (107.6°F). Weather in March »

Weather in April

April, like March, is another tropical spring month in Kolonnawa, Sri Lanka, with an average temperature ranging between min 25.8°C (78.4°F) and max 31.8°C (89.2°F). March and April, with an average high-temperature of 31.8°C (89.2°F), are the warmest months. The heat index in April is estimated at an extremely hot 42°C (107.6°F). Weather in April »

Weather in May

The last month of the spring, May, is also a hot month in Kolonnawa, Sri Lanka, with an average temperature varying between 26.3°C (79.3°F) and 30.6°C (87.1°F). The average high-temperature in May, at a still hot 30.6°C (87.1°F), reveals a modest deviation from April's 31.8°C (89.2°F). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Kolonnawa, Sri Lanka, with an average temperature varying between 25.8°C (78.4°F) and 29.3°C (84.7°F). June's weather records an average high-temperature of a warm 29.3°C (84.7°F), showing little deviation from May. Weather in June »

Weather in July

July, the same as June, is another warm summer month in Kolonnawa, Sri Lanka, with an average temperature varying between 25.3°C (77.5°F) and 28.9°C (84°F). Kolonnawa witnesses its lowest temperatures in July and August, reaching an average of 28.9°C (84°F). The heat index value during July is estimated at a fiery hot 35°C (95°F). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Kolonnawa, Sri Lanka, with an average temperature fluctuating between 28.9°C (84°F) and 25.2°C (77.4°F). The coldest months are July and August, with an average high-temperature of 28.9°C (84°F). August's mean heat index is estimated at a torrid 35°C (95°F). Weather in August »

Weather in September

September, the first month of the autumn in Kolonnawa, is also a moderately hot month, with an average temperature fluctuating between 24.9°C (76.8°F) and 29.1°C (84.4°F). During September, Kolonnawa records an average high-temperature of a still moderately hot 29.1°C (84.4°F), marking a slight divergence from August's 28.9°C (84°F). Weather in September »

Weather in October

October is a tropical autumn month in Kolonnawa, Sri Lanka, with temperature in the range of an average low of 25°C (77°F) and an average high of 30°C (86°F). October's advent presents an average high-temperature of a hot 30°C (86°F), indicating a slight variation from the conditions of the previous month. Weather in October »

Weather in November

November, the last month of the autumn in Kolonnawa, is another hot month, with an average temperature fluctuating between 24.5°C (76.1°F) and 30.1°C (86.2°F). Kolonnawa marks the start of November with an average high-temperature of a still tropical 30.1°C (86.2°F), hinting at a slight fluctuation from October's 30°C (86°F). Weather in November »

Weather in December

December, the first month of the winter in Kolonnawa, is also a moderately hot month, with an average temperature varying between 23.7°C (74.7°F) and 29.9°C (85.8°F). Upon the beginning of December, Kolonnawa's high-temperatures register at a moderately hot 29.9°C (85.8°F), closely mirroring the preceding month. Weather in December »
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Frequently asked questions

What are the least humid months in Kolonnawa?

January and February, with an average relative humidity of 74%, are the least humid months in Kolonnawa, Sri Lanka.

What is the driest month in Kolonnawa?

The month with the least rainfall in Kolonnawa, Sri Lanka, 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 Kolonnawa?

In Kolonnawa, 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 Kolonnawa?

With an average of 9.1h of sunshine, January has the most sunshine of the year in Kolonnawa.

What is the month with the highest UV index in Kolonnawa?

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index.

What is the warmest month in Kolonnawa?

In Kolonnawa, March and April are characterised by the peak of temperatures, recording an average high of 31.8°C (89.2°F).

When is the lowest UV index in Kolonnawa?

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6.

What is the most humid month in Kolonnawa?

The months with the highest humidity are June through August, with an average relative humidity of 83%.

What is the wettest month in Kolonnawa?

The month with the most rainfall in Kolonnawa, Sri Lanka, 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 Kolonnawa?

The month with the longest days is June, with an average of 12h and 30min of daylight.

What part of the year is the coldest in Kolonnawa?

During July and August, Kolonnawa experiences its lowest temperatures, averaging a high-temperature of 28.9°C (84°F).

What is the month with the least sunshine in Kolonnawa?

November has the least sunshine of the year in Kolonnawa, Sri Lanka, with an average of 6.7h of sunshine.

What is the month with the shortest days in Kolonnawa?

December has the shortest days of the year, with an average of 11h and 42min of daylight.

Is there Daylight Saving Time (DST) in Kolonnawa?

Kolonnawa does not utilize Daylight Saving Time (DST). +0530 timezone is used over the entire year.

Average temperature
Kolonnawa, Sri Lanka

Average temperature - Kolonnawa, 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).

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Average pressure
Kolonnawa, Sri Lanka

Average pressure - Kolonnawa, Sri Lanka

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).

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Average wind speed
Kolonnawa, Sri Lanka

Average wind speed - Kolonnawa, Sri Lanka

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).

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Average humidity
Kolonnawa, Sri Lanka

Average humidity - Kolonnawa, 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%).

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Average rainfall
Kolonnawa, Sri Lanka

Average rainfall - Kolonnawa, Sri Lanka

The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).

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Average rainfall days
Kolonnawa, Sri Lanka

Average rainfall days - Kolonnawa, Sri Lanka

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).

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Average daylight / Average sunshine
Kolonnawa, Sri Lanka

Average daylight / Average sunshine - Kolonnawa, Sri Lanka

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).

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).

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Average sunshine days
Kolonnawa, Sri Lanka

Average sunshine days - Kolonnawa, Sri Lanka

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).

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Average UV index
Kolonnawa, Sri Lanka

Average UV index - Kolonnawa, 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).

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Average visibility
Kolonnawa, Sri Lanka

Average visibility - Kolonnawa, 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).

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Kolonnawa, Sri Lanka

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