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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 in Keselwatta, 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). Keselwatta measures an average high-temperature of a tropical 30.3°C (86.5°F) in January, nearly consistent with the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Keselwatta, is another hot month, with an average temperature varying between 30.9°C (87.6°F) and 23.5°C (74.3°F). Keselwatta's shift into February is marked by a subtle change to a still tropical 30.9°C (87.6°F) from January's 30.3°C (86.5°F) in temperature. Weather in February »
Weather in March
The first month of the spring, March, is still a hot month in Keselwatta, Sri Lanka, with an average temperature ranging between min 25°C (77°F) and max 31.3°C (88.3°F). March and April, with an average high-temperature of 31.3°C (88.3°F), are the warmest months. The heat index in March is appraised at a blistering 41°C (105.8°F). Weather in March »
Weather in April
April, the same as March, in Keselwatta, Sri Lanka, is another tropical spring month, with an average temperature varying between 31.3°C (88.3°F) and 26°C (78.8°F). In Keselwatta, Sri Lanka, the months of March and April register the highest average temperatures, peaking at 31.3°C (88.3°F). For April, the heat index is appraised at a scorching 41°C (105.8°F). Weather in April »
Weather in May
The last month of the spring, May, is another tropical month in Keselwatta, Sri Lanka, with an average temperature varying between 26.3°C (79.3°F) and 30.2°C (86.4°F). The commencement of May records an average high-temperature of a still tropical 30.2°C (86.4°F), barely varying from April's 31.3°C (88.3°F). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Keselwatta, Sri Lanka, with an average temperature fluctuating between 26.1°C (79°F) and 29.2°C (84.6°F). June brings an average high-temperature of a warm 29.2°C (84.6°F), showing a slight difference from May's 30.2°C (86.4°F). Weather in June »
Weather in July
July, like June, in Keselwatta, Sri Lanka, is another warm summer month, with an average temperature fluctuating between 25.6°C (78.1°F) and 28.7°C (83.7°F). The arrival of July denotes a barely perceptible change in the average high-temperatures to a still moderately hot 28.7°C (83.7°F) from June's 29.2°C (84.6°F). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Keselwatta, Sri Lanka, with an average temperature varying between 28.6°C (83.5°F) and 25.5°C (77.9°F). August, with its average high-temperature of 28.6°C (83.5°F) and an average low-temperature of 25.5°C (77.9°F), holds the record as the coldest month. In August, the heat index is appraised at a hot 34°C (93.2°F). Weather in August »
Weather in September
September, the first month of the autumn in Keselwatta, is also a moderately hot month, with an average temperature ranging between min 25.2°C (77.4°F) and max 28.8°C (83.8°F). September experiences an average high-temperature of a still warm 28.8°C (83.8°F), barely different from August's 28.6°C (83.5°F). Weather in September »
Weather in October
October, like September, in Keselwatta, Sri Lanka, is another warm autumn month, with an average temperature varying between 29.6°C (85.3°F) and 25.5°C (77.9°F). The average high-temperature for October is a still warm 29.6°C (85.3°F), closely aligning with the temperature of the preceding month. Weather in October »
Weather in November
November, the last month of the autumn in Keselwatta, is also a moderately hot month, with temperature in the range of an average low of 24.8°C (76.6°F) and an average high of 29.8°C (85.6°F). The average high-temperature in November, at a still moderately hot 29.8°C (85.6°F), reveals a modest deviation from October's 29.6°C (85.3°F). Weather in November »
Weather in December
December, the first month of the winter in Keselwatta, is still a warm month, with an average temperature varying between 24.4°C (75.9°F) and 29.7°C (85.5°F). Keselwatta observes a minor difference in average high-temperatures between November's 29.8°C (85.6°F) and December's 29.7°C (85.5°F). Weather in December »
Updated: Feb 6, 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
What is the least humid month in Keselwatta?
The months with the lowest humidity in Keselwatta, Sri Lanka, are January and February, with an average relative humidity of 75%.
What is the driest month in Keselwatta?
January is the month with the least rainfall in Keselwatta. Rain falls for 8.9 days and accumulates 25mm (0.98") of precipitation.
How much does it rain in Keselwatta?
Throughout the year, in Keselwatta, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.
What month has the most sunshine in Keselwatta?
January has the most sunshine of the year, with an average of 9.2h of sunshine.
What are the months with the highest UV index in Keselwatta?
January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index.
What time of the year is the hottest in Keselwatta?
Keselwatta's peak temperatures tend to occur in March and April, with an average high-temperature of 31.3°C (88.3°F).
What are the months with the lowest UV index in Keselwatta?
May, June and August, with an average maximum UV index of 6, are months with the lowest UV index.
What is the most humid month in Keselwatta?
The months with the highest humidity are June through August, with an average relative humidity of 83%.
What is the rainiest month in Keselwatta?
The month with the most rainfall in Keselwatta 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 Keselwatta?
June has the longest days of the year in Keselwatta, with an average of 12h and 30min of daylight.
What month is the coldest in Keselwatta?
Keselwatta's August weather reaches an average high of 28.6°C (83.5°F) and an average low of 25.5°C (77.9°F), making it the coldest month.
What is the month with the least sunshine in Keselwatta?
November has the least sunshine of the year in Keselwatta, with an average of 6.8h of sunshine.
What is the month with the shortest days in Keselwatta?
The month with the shortest days is December, with an average of 11h and 42min of daylight.
Is there Daylight Saving Time (DST) in Keselwatta?
Keselwatta does not utilize Daylight Saving Time (DST). +0530 timezone is used throughout the entire year.
Average temperature
Keselwatta, 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).
Average pressure
Keselwatta, 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:
1008.7mbar - Average pressure in June:
1008.8mbar
- Average pressure in July:
1008.9mbar - Average pressure in August:
1009.2mbar - Average pressure in September:
1009.9mbar - Average pressure in October:
1010mbar - Average pressure in November:
1009.9mbar - 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 (1008.7mbar).
Average wind speed
Keselwatta, Sri Lanka
- Average wind speed in January:
12.2km/h - Average wind speed in February:
9.4km/h - Average wind speed in March:
7.9km/h - Average wind speed in April:
8.7km/h - Average wind speed in May:
13.3km/h - Average wind speed in June:
15.9km/h
- Average wind speed in July:
14.9km/h - Average wind speed in August:
15.1km/h - Average wind speed in September:
13.6km/h - Average wind speed in October:
10.6km/h - Average wind speed in November:
9.1km/h - Average wind speed in December:
11.3km/h
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).
Average humidity
Keselwatta, 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 (75%).
Average rainfall
Keselwatta, Sri Lanka
- Average rainfall in January:
25mm - Average rainfall in February:
32mm - Average rainfall in March:
61mm - Average rainfall in April:
127mm - Average rainfall in May:
303mm - Average rainfall in June:
350mm
- Average rainfall in July:
260mm - Average rainfall in August:
282mm - Average rainfall in September:
201mm - Average rainfall in October:
192mm - Average rainfall in November:
133mm - Average rainfall in December:
93mm
The wettest month (with the highest rainfall) is June (350mm).
The driest month (with the least rainfall) is January (25mm).
Average rainfall days
Keselwatta, Sri Lanka
- Average rainfall days in January:
8.9 days - Average rainfall days in February:
11.5 days - Average rainfall days in March:
19.9 days - Average rainfall days in April:
25.8 days - Average rainfall days in May:
28 days - Average rainfall days in June:
29.2 days
- Average rainfall days in July:
29.5 days - Average rainfall days in August:
29.5 days - Average rainfall days in September:
26.3 days - Average rainfall days in October:
25.2 days - Average rainfall days in November:
23.5 days - Average rainfall days in December:
16.5 days
The 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).
Average daylight / Average sunshine
Keselwatta, 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:
9h and 0min - Average sunshine in May:
8h and 4min - Average sunshine in June:
8h and 1min
- Average sunshine in July:
7h and 5min - Average sunshine in August:
7h and 1min - Average sunshine in September:
7h and 4min - Average sunshine in October:
7h and 5min - Average sunshine in November:
6h and 5min - Average sunshine in December:
7h and 1min
The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days
Keselwatta, Sri Lanka
- Average sunshine days in January:
21 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
7.4 days - Average sunshine days in April:
2.3 days - Average sunshine days in May:
1.2 days - Average sunshine days in June:
0.3 days
- Average sunshine days in July:
0.3 days - Average sunshine days in August:
0.5 days - Average sunshine days in September:
1.4 days - Average sunshine days in October:
3.4 days - Average sunshine days in November:
5.8 days - Average sunshine days in December:
12.5 days
The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and July (0.3 days).
Average UV index
Keselwatta, Sri Lanka
The months with the highest UV index are January, February, March, April, July, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June and August (UV index 6).
Average cloud cover
Keselwatta, Sri Lanka
The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility
Keselwatta, Sri Lanka
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
