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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
Climate and monthly weather forecast
Weather in January
January, the same as December, is another warm winter month in Dematagahapelessa, Sri Lanka, with temperature in the range of an average low of 19°C (66.2°F) and an average high of 29.3°C (84.7°F). With January's arrival, Dematagahapelessa notes an average high-temperature of a still moderately hot 29.3°C (84.7°F), closely following the trend of the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Dematagahapelessa, is a hot month, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 18.9°C (66°F). Transitioning from January to February, Dematagahapelessa observes an average high-temperature of a tropical 30.7°C (87.3°F), differing subtly from the previous month. Weather in February »
Weather in March
March, the first month of the spring in Dematagahapelessa, is still a hot month, with an average temperature ranging between min 19.9°C (67.8°F) and max 32.8°C (91°F). The shift into March finds Dematagahapelessa at an average high-temperature of a still hot 32.8°C (91°F), closely comparable to February's conditions. Weather in March »
Weather in April
April, like March, is another tropical spring month in Dematagahapelessa, Sri Lanka, with an average temperature fluctuating between 22°C (71.6°F) and 32.9°C (91.2°F). Dematagahapelessa's warmest weather arrives in April, when temperatures average a high of 32.9°C (91.2°F) and a low of 22°C (71.6°F). For most parts of April, the heat index is calculated to be a life-threatening hot 46°C (114.8°F). Weather in April »
Weather in May
The last month of the spring, May, is also a hot month in Dematagahapelessa, Sri Lanka, with an average temperature ranging between max 31.8°C (89.2°F) and min 23°C (73.4°F). May observes an average high-temperature of a still hot 31.8°C (89.2°F), marking an insignificant difference from April's 32.9°C (91.2°F). Weather in May »
Weather in June
June, the first month of the summer in Dematagahapelessa, is still a hot month, with temperature in the range of an average high of 31°C (87.8°F) and an average low of 22.8°C (73°F). The arrival of June coincides with an average high-temperature of a still hot 31°C (87.8°F), indicating a minimal shift from May's 31.8°C (89.2°F). Weather in June »
Weather in July
July, the same as June, in Dematagahapelessa, Sri Lanka, is another hot summer month, with an average temperature fluctuating between 22.5°C (72.5°F) and 30.7°C (87.3°F). The transition from June to July sees an average high-temperature of a still hot 30.7°C (87.3°F), indicating a minor variance from the prior month. Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Dematagahapelessa, Sri Lanka, with an average temperature fluctuating between 22.3°C (72.1°F) and 30.8°C (87.4°F). The arrival of August brings an average high-temperature of a still tropical 30.8°C (87.4°F), nearly identical to July's 30.7°C (87.3°F). Weather in August »
Weather in September
The first month of the autumn, September, is also a hot month in Dematagahapelessa, Sri Lanka, with temperature in the range of an average high of 31.2°C (88.2°F) and an average low of 22.3°C (72.1°F). The dawn of September sees an average high-temperature of a still tropical 31.2°C (88.2°F), subtly contrasting with August's 30.8°C (87.4°F). Weather in September »
Weather in October
October, the same as September, in Dematagahapelessa, Sri Lanka, is another hot autumn month, with an average temperature varying between 21.8°C (71.2°F) and 30.9°C (87.6°F). October notes an average high-temperature of a still tropical 30.9°C (87.6°F), subtly differing from September's 31.2°C (88.2°F). Weather in October »
Weather in November
The last month of the autumn, November, is also a moderately hot month in Dematagahapelessa, Sri Lanka, with an average temperature varying between 21°C (69.8°F) and 29.6°C (85.3°F). Dematagahapelessa experiences an average high-temperature of a moderately hot 29.6°C (85.3°F) in November, subtly different from October's 30.9°C (87.6°F). Weather in November »
Weather in December
December, the first month of the winter in Dematagahapelessa, is still a warm month, with temperature in the range of an average low of 20.4°C (68.7°F) and an average high of 28.6°C (83.5°F). December, known for its average high temperature of 28.6°C (83.5°F) and an average low temperature of 20.4°C (68.7°F), is the coldest month. The heat index value for December is calculated to be a hot 34°C (93.2°F). Weather in December »
Updated: Jul 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How much does it rain?
Throughout the year, there are 217.7 rainfall days, and 1165mm (45.87") of precipitation is accumulated.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 6.
What is the least humid month?
The months with the lowest humidity are March and September, with an average relative humidity of 72%.
What is the month with the highest UV index?
The months with the highest UV index are March through September, with an average maximum UV index of 7.
What month is the hottest?
Dematagahapelessa, Sri Lanka, registers the average highest temperatures during April, with peaks of 32.9°C (91.2°F) and lows of 22°C (71.6°F).
What is the driest month?
June is the month with the least rainfall. Rain falls for 14.7 days and accumulates 29mm (1.14") of precipitation.
When are the longest days?
With an average of 12h and 36min of daylight, June has the longest days of the year.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 11h of sunshine.
What is the wettest month?
The month with the most rainfall is October, when the rain falls for 22.4 days and typically aggregates up to 267mm (10.51") of precipitation.
What is the coldest month?
In Dematagahapelessa, December registers the lowest temperatures, averaging 28.6°C (83.5°F) at the peak and 20.4°C (68.7°F) at the lowest.
What is the most humid month?
December is the most humid month, with an average relative humidity of 83%.
What is the month with the shortest days?
With an average of 11h and 42min of daylight, December has the shortest days of the year.
Is there Daylight Saving Time (DST)?
Dematagahapelessa does not observe Daylight Saving Time (DST). +0530 timezone is used throughout the entire year.
What is the month with the least sunshine?
With an average of 5.7h of sunshine, December has the least sunshine of the year.
Average temperature
Dematagahapelessa, Sri Lanka
The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).
The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).
Average pressure
Dematagahapelessa, Sri Lanka
- Average pressure in January:
1011.9mbar - Average pressure in February:
1011.5mbar - Average pressure in March:
1010.8mbar - Average pressure in April:
1009.5mbar - Average pressure in May:
1008.1mbar - Average pressure in June:
1007.9mbar
- Average pressure in July:
1008mbar - Average pressure in August:
1008.4mbar - Average pressure in September:
1009.2mbar - Average pressure in October:
1009.7mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1010.5mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).
Average wind speed
Dematagahapelessa, Sri Lanka
- Average wind speed in January:
9.1km/h - Average wind speed in February:
8.6km/h - Average wind speed in March:
6.1km/h - Average wind speed in April:
5.6km/h - Average wind speed in May:
11.2km/h - Average wind speed in June:
16.5km/h
- Average wind speed in July:
15.6km/h - Average wind speed in August:
14.2km/h - Average wind speed in September:
13.2km/h - Average wind speed in October:
8.2km/h - Average wind speed in November:
6.1km/h - Average wind speed in December:
7.8km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity
Dematagahapelessa, Sri Lanka
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are March and September (72%).
Average rainfall
Dematagahapelessa, Sri Lanka
- Average rainfall in January:
34mm - Average rainfall in February:
54mm - Average rainfall in March:
54mm - Average rainfall in April:
120mm - Average rainfall in May:
117mm - Average rainfall in June:
29mm
The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days
Dematagahapelessa, Sri Lanka
- Average rainfall days in January:
14 days - Average rainfall days in February:
11.8 days - Average rainfall days in March:
16.1 days - Average rainfall days in April:
24.7 days - Average rainfall days in May:
21.6 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
16.6 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
15.2 days - Average rainfall days in October:
22.4 days - Average rainfall days in November:
23.9 days - Average rainfall days in December:
20.9 days
The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).
Average daylight / Average sunshine
Dematagahapelessa, Sri Lanka
- Average daylight in January:
11h and 4min - 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 3min - Average daylight in June:
12h and 4min
- 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 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January:
8h and 2min - Average sunshine in February:
8h and 4min - Average sunshine in March:
9h and 0min - Average sunshine in April:
9h and 5min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
8h and 5min - Average sunshine in September:
10h and 3min - Average sunshine in October:
8h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
5h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Dematagahapelessa, Sri Lanka
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
4 days - Average sunshine days in May:
5.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
10.5 days - Average sunshine days in October:
7.1 days - Average sunshine days in November:
5.2 days - Average sunshine days in December:
8.2 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).
Average UV index
Dematagahapelessa, Sri Lanka
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover
Dematagahapelessa, Sri Lanka
The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).
Average visibility
Dematagahapelessa, Sri Lanka
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
