Unawatuna, Sri Lanka - Detailed climate information and monthly weather forecast

January, like December, in Unawatuna, Sri Lanka, is another warm winter month, with average temperature fluctuating between 24°C (75.2°F) and 29.2°C (84.6°F). In Unawatuna, Sri Lanka, the average high-temperature in January is relatively the same as in December - a still warm 29.2°C (84.6°F). Weather in January »

The last month of the winter, February, is also a moderately hot month in Unawatuna, Sri Lanka, with average temperature varying between 29.7°C (85.5°F) and 24.3°C (75.7°F). In February, the average high-temperature is almost the same as in January - a still warm 29.7°C (85.5°F). Weather in February »

March, the first month of the spring, in Unawatuna, is a hot month, with temperature in the range of an average low of 25.3°C (77.5°F) and an average high of 30.3°C (86.5°F). March and April, with an average high-temperature of 30.3°C (86.5°F), are the warmest months. The average heat index is estimated at a sweltering 37.7°C (99.9°F). Weather in March »

April, the same as March, in Unawatuna, Sri Lanka, is another tropical spring month, with average temperature fluctuating between 30.3°C (86.5°F) and 26.4°C (79.5°F). March and April, with an average high-temperature of 30.3°C (86.5°F), are the warmest months. The average heat index is estimated at a sweltering 38°C (100.4°F). Weather in April »

May, the last month of the spring, in Unawatuna, is another warm month, with average temperature fluctuating between 29.5°C (85.1°F) and 26.7°C (80.1°F). In May, the average high-temperature is relatively the same as in April - a moderately hot 29.5°C (85.1°F). Weather in May »

The first month of the summer, June, is also a moderately hot month in Unawatuna, Sri Lanka, with average temperature ranging between min 26.6°C (79.9°F) and max 28.8°C (83.8°F). In Unawatuna, the average high-temperature is relatively the same as in May - a still moderately hot 28.8°C (83.8°F). Weather in June »

July, like June, in Unawatuna, Sri Lanka, is another warm summer month, with temperature in the range of an average high of 28.7°C (83.7°F) and an average low of 26.2°C (79.2°F). In July, the average high-temperature is relatively the same as in June - a still moderately hot 28.7°C (83.7°F). Weather in July »

August, the last month of the summer, in Unawatuna, is another warm month, with average temperature varying between 28.3°C (82.9°F) and 25.9°C (78.6°F). August and September, with an average high-temperature of 28.3°C (82.9°F), are the coldest months. In August, the average heat index is calculated to a hot 33°C (91.4°F). Weather in August »

September, the first month of the autumn, in Unawatuna, is still a warm month, with average temperature varying between 25.8°C (78.4°F) and 28.3°C (82.9°F). August and September, with an average high-temperature of 28.3°C (82.9°F), are the coldest months. In September, the average heat index is appraised at a tropical 33.2°C (91.8°F). Weather in September »

October, the same as September, is a moderately hot autumn month in Unawatuna, Sri Lanka, with average temperature fluctuating between 28.8°C (83.8°F) and 25.9°C (78.6°F). In Unawatuna, Sri Lanka, the average high-temperature is essentially the same as in September - a still warm 28.8°C (83.8°F). Weather in October »

The last month of the autumn, November, is another warm month in Unawatuna, Sri Lanka, with average temperature fluctuating between 29.2°C (84.6°F) and 25.3°C (77.5°F). In November, the average high-temperature is relatively the same as in October - a still warm 29.2°C (84.6°F). Weather in November »

December, the first month of the winter, in Unawatuna, is still a warm month, with average temperature ranging between min 24.8°C (76.6°F) and max 28.9°C (84°F). In Unawatuna, the average high-temperature in December is almost the same as in November - a still moderately hot 28.9°C (84°F). Weather in December »

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How much does it rain in Unawatuna?

In Unawatuna, during the entire year, the rain falls for 286.9 days and collects up to 1974mm (77.72") of precipitation.

What is the driest month in Unawatuna?

January is the month with the least rainfall. Rain falls for 14.8 days and accumulates 38mm (1.5") of precipitation.

What months are the sea coldest in Unawatuna?

Through, October and December, with an average sea temperature of 28°C (82.4°F).

What is the month with the shortest days in Unawatuna?

January and December, with an average of 11.8h of daylight, are months with the shortest days in Unawatuna.

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

January through April, June through August, October through December, with an average maximum UV index of 7, are months with the highest UV index in Unawatuna, Sri Lanka.

What are the least humid months in Unawatuna?

Months with the lowest humidity are February and March, with an average relative humidity of 77%.

What are the warmest months in Unawatuna?

March and April, with an average high-temperature of 30.3°C (86.5°F), are warmest months in Unawatuna.

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

April is the month with the warmest seawater, with an average sea temperature of 30°C (86°F).

What month has the most sunshine in Unawatuna?

April has the most sunshine of the year in Unawatuna, Sri Lanka, with an average of 9.3h of sunshine.

What is the wettest month in Unawatuna?

May is the month with the most rainfall. Rain falls for 27.7 days and accumulates 302mm (11.89") of precipitation.

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

May and September, with an average maximum UV index of 6, are months with the lowest UV index in Unawatuna, Sri Lanka.

What is the most humid month in Unawatuna?

Months with the highest humidity are June and September, with an average relative humidity of 82%.

When are the longest days in Unawatuna?

With an average of 12.5h of daylight, June has the longest days of the year.

What is the coldest month in Unawatuna?

The coldest months are August and September, with an average high-temperature of 28.3°C (82.9°F).

What is the month with the least sunshine in Unawatuna?

With an average of 7h of sunshine, December has the least sunshine of the year in Unawatuna, Sri Lanka.

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Long-term

Climate J F M A M J J A S O N D Year

Average temperature - Unawatuna, Sri Lanka

Average high temperature in January:
29.2°C
Average high temperature in February:
29.7°C
Average high temperature in March:
30.3°C
Average high temperature in April:
30.3°C
Average high temperature in May:
29.5°C
Average high temperature in June:
28.8°C

Average high temperature in July:
28.7°C
Average high temperature in August:
28.3°C
Average high temperature in September:
28.3°C
Average high temperature in October:
28.8°C
Average high temperature in November:
29.2°C
Average high temperature in December:
28.9°C

The warmest months (with the highest average high temperature) are March and April (30.3°C).
Months with the lowest average high temperature are August and September (28.3°C).

Average low temperature in January:
24°C
Average low temperature in February:
24.3°C
Average low temperature in March:
25.3°C
Average low temperature in April:
26.4°C
Average low temperature in May:
26.7°C
Average low temperature in June:
26.6°C

Average low temperature in July:
26.2°C
Average low temperature in August:
25.9°C
Average low temperature in September:
25.8°C
Average low temperature in October:
25.9°C
Average low temperature in November:
25.3°C
Average low temperature in December:
24.8°C

The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).

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Months with the highest relative humidity are June and September (82%).
Months with the lowest relative humidity are February and March (77%).

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The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).

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Average rainfall days - Unawatuna, Sri Lanka

Average rainfall days in January:
14.8 days
Average rainfall days in February:
16.3 days
Average rainfall days in March:
21.3 days
Average rainfall days in April:
26.2 days
Average rainfall days in May:
27.7 days
Average rainfall days in June:
28 days

Average rainfall days in July:
25.7 days
Average rainfall days in August:
27.7 days
Average rainfall days in September:
24.5 days
Average rainfall days in October:
26.3 days
Average rainfall days in November:
26.3 days
Average rainfall days in December:
22.1 days

The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).

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Average sea temperature - Unawatuna, Sri Lanka

Average sea temperature in January:
28°C
Average sea temperature in February:
28°C
Average sea temperature in March:
29°C
Average sea temperature in April:
30°C
Average sea temperature in May:
29°C
Average sea temperature in June:
28°C

Average sea temperature in July:
28°C
Average sea temperature in August:
28°C
Average sea temperature in September:
28°C
Average sea temperature in October:
28°C
Average sea temperature in November:
29°C
Average sea temperature in December:
28°C

The best month for swimming (with the highest average sea temperature) is April (30°C).
The coldest months (with the lowest average sea temperature) are January, February, June, July, August, September, October and December (28°C).

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Average daylight / Average sunshine - Unawatuna, Sri Lanka

The month with the longest days is June (Average daylight: 12.5h).
Months with the shortest days are January and December (Average daylight: 11.8h).

The month with the most sunshine is April (Average sunshine: 9.3h).
The month with the least sunshine is December (Average sunshine: 7h).

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

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Monthly weather forecast and climate
Unawatuna, Sri Lanka

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