Monthly weather forecast and climate
Kalutara, Sri Lanka

Weather in January

January in Kalutara, Sri Lanka, is a tropical winter month, with temperature in the range of an average low of 23.4°C (74.1°F) and an average high of 30.3°C (86.5°F). In Kalutara, Sri Lanka, the average high-temperature in January is practically the same as in December - a tropical 30.3°C (86.5°F). Weather in January »

Weather in February

The last month of the winter, February, is another hot month in Kalutara, Sri Lanka, with average temperature ranging between max 30.9°C (87.6°F) and min 23.5°C (74.3°F). In Kalutara, the average high-temperature in February is essentially the same as in January - a still hot 30.9°C (87.6°F). Weather in February »

Weather in March

March, the first month of the spring, in Kalutara, is still a hot month, with average temperature fluctuating between 31.3°C (88.3°F) and 25°C (77°F). The warmest months are March and April, with an average high-temperature of 31.3°C (88.3°F). In March, the average heat index is appraised at a scorching 40.8°C (105.4°F). Weather in March »

Weather in April

April, the same as March, in Kalutara, Sri Lanka, is a hot spring month, with average temperature ranging between min 26°C (78.8°F) and max 31.3°C (88.3°F). The warmest months are March and April, with an average high-temperature of 31.3°C (88.3°F). In April, the average heat index is calculated to a scorching 41.2°C (106.2°F). Weather in April »

Weather in May

May, the last month of the spring, in Kalutara, is another tropical month, with temperature in the range of an average high of 30.2°C (86.4°F) and an average low of 26.3°C (79.3°F). In Kalutara, the average high-temperature is practically the same as in April - a still tropical 30.2°C (86.4°F). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Kalutara, Sri Lanka, with temperature in the range of an average high of 29.2°C (84.6°F) and an average low of 26.1°C (79°F). In June, the average high-temperature is almost the same as in May - a moderately hot 29.2°C (84.6°F). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Kalutara, Sri Lanka, with average temperature fluctuating between 28.7°C (83.7°F) and 25.6°C (78.1°F). In July, the average high-temperature is practically the same as in June - a still warm 28.7°C (83.7°F). Weather in July »

Weather in August

August, the last month of the summer, in Kalutara, is also a moderately hot month, with average temperature ranging between max 28.6°C (83.5°F) and min 25.5°C (77.9°F). August is the coldest month, with an average high-temperature of 28.6°C (83.5°F) and an average low-temperature of 25.5°C (77.9°F). The average heat index is estimated at a tropical 34.2°C (93.6°F). Weather in August »

Weather in September

September, the first month of the autumn, in Kalutara, is still a warm month, with average temperature ranging between max 28.8°C (83.8°F) and min 25.2°C (77.4°F). In Kalutara, Sri Lanka, the average high-temperature in September is relatively the same as in August - a still warm 28.8°C (83.8°F). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Kalutara, Sri Lanka, with temperature in the range of an average high of 29.6°C (85.3°F) and an average low of 25.5°C (77.9°F). In Kalutara, the average high-temperature is essentially the same as in September - a still warm 29.6°C (85.3°F). Weather in October »

Weather in November

The last month of the autumn, November, is another warm month in Kalutara, Sri Lanka, with average temperature varying between 29.8°C (85.6°F) and 24.8°C (76.6°F). In November, the average high-temperature is almost the same as in October - a still warm 29.8°C (85.6°F). Weather in November »

Weather in December

The first month of the winter, December, is still a warm month in Kalutara, Sri Lanka, with average temperature ranging between max 29.7°C (85.5°F) and min 24.4°C (75.9°F). In December, the average high-temperature is practically the same as in November - a still warm 29.7°C (85.5°F). Weather in December »
[Resources]

FAQ

What are the least humid months in Kalutara?

January and February, with an average relative humidity of 75%, are the least humid months in Kalutara, Sri Lanka.

How many days does it rain in Kalutara?

Throughout the year, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.

What is the driest month in Kalutara?

January is the month with the least rainfall. Rain falls for 8.9 days and accumulates 25mm (0.98") of precipitation.

What month has the most sunshine in Kalutara?

The month with the most sunshine in Kalutara, Sri Lanka, is January, with an average of 9.2h of sunshine.

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

January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index in Kalutara, Sri Lanka.

What is the warmest month in Kalutara?

March and April, with an average high-temperature of 31.3°C (88.3°F), are warmest months.

What is the month with the warmest sea water in Kalutara?

With an average sea temperature of 29.6°C (85.3°F), April is the month with the warmest seawater in Kalutara.

What is the month with the lowest UV index in Kalutara?

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

What are the most humid months in Kalutara?

June through August, with an average relative humidity of 83%, are most humid months.

What is the rainiest month in Kalutara?

The month with the most rainfall in Kalutara, Sri Lanka, is June when the rain falls for 29.2 days and typically aggregates up to 350mm (13.78") of precipitation.

When are the longest days in Kalutara?

June and July, with an average of 12.5h of daylight, are months with the longest days in Kalutara.

What is the coldest month in Kalutara?

August is the coldest month, with an average high-temperature of 28.6°C (83.5°F) and an average low-temperature of 25.5°C (77.9°F).

What month is the sea coldest in Kalutara?

August is the month with the coldest seawater in Kalutara, Sri Lanka, with an average sea temperature of 27.2°C (81°F).

What is the month with the least sunshine in Kalutara?

November has the least sunshine of the year in Kalutara, with an average of 6.8h of sunshine.

What is the month with the shortest days in Kalutara?

December has the shortest days of the year in Kalutara, with an average of 11.7h of daylight.

Average temperature
Kalutara, Sri Lanka

Average temperature - Kalutara, Sri Lanka

The warmest months (with the highest average high temperature) are March and April (31.3°C).
The month with the lowest average high temperature is August (28.6°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 (23.4°C).

[Resources]

Average pressure
Kalutara, Sri Lanka

Average pressure - Kalutara, Sri Lanka

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).

[Resources]

Average wind speed
Kalutara, Sri Lanka

Average wind speed - Kalutara, Sri Lanka

The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (7.9km/h).

[Resources]

Average humidity
Kalutara, Sri Lanka

Average humidity - Kalutara, Sri Lanka

Months with the highest relative humidity are June, July and August (83%).
Months with the lowest relative humidity are January and February (75%).

[Resources]

Average rainfall
Kalutara, Sri Lanka

Average rainfall - Kalutara, Sri Lanka

The wettest month (with the highest rainfall) is June (350mm).
The driest month (with the least rainfall) is January (25mm).

[Resources]

Average rainfall days
Kalutara, Sri Lanka

Average rainfall days - Kalutara, Sri Lanka

Months with the highest number of rainy days are July and August (29.5 days).
The month with the least rainy days is January (8.9 days).

[Resources]

Average sea temperature
Kalutara, Sri Lanka

Average sea temperature - Kalutara, Sri Lanka

The best month for swimming (with the highest average sea temperature) is April (29.6°C).
The coldest month (with the lowest average sea temperature) is August (27.2°C).

[Resources]

Average daylight / Average sunshine
Kalutara, Sri Lanka

Average daylight / Average sunshine - Kalutara, Sri Lanka

Months with the longest days are June and July (Average daylight: 12.5h).
The month with the shortest days is December (Average daylight: 11.7h).

The month with the most sunshine is January (Average sunshine: 9.2h).
The month with the least sunshine is November (Average sunshine: 6.8h).

[Resources]

Average sunshine days
Kalutara, Sri Lanka

Average sunshine days - Kalutara, Sri Lanka

The month with the most sunshine days is January (21 days).
Months with the least sunshine days are June and July (0.3 days).

[Resources]

Average UV index
Kalutara, Sri Lanka

Average UV index - Kalutara, Sri Lanka

Months with the highest UV index are January, February, March, April, July, September, October, November and December (UV index 7).
Months with the lowest UV index are May, June and August (UV index 6).

[Resources]

Average visibility
Kalutara, Sri Lanka

Average visibility - Kalutara, Sri Lanka

Months with the highest visibility are January, February, March, April, November and December (10km).
Months with the lowest visibility are May, June, July, August, September and October (9km).

[Resources]