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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 is a tropical winter month in Kottawa, Sri Lanka, with an average temperature varying between 30.3°C (86.5°F) and 23.3°C (73.9°F). As January takes hold, the average high-temperature is a tropical 30.3°C (86.5°F), nearly mirroring that of the previous month. Weather in January »
Weather in February
February, the last month of the winter in Kottawa, is another tropical month, with an average temperature ranging between min 23.5°C (74.3°F) and max 31.2°C (88.2°F). February registers an average high-temperature of a still tropical 31.2°C (88.2°F), slightly varied from January's 30.3°C (86.5°F). Weather in February »
Weather in March
March, the first month of the spring in Kottawa, is still a tropical month, with an average temperature varying between 24.8°C (76.6°F) and 31.4°C (88.5°F). The height of temperatures is seen during March and April, averaging a high-temperature of 31.4°C (88.5°F). Throughout March, the heat index is appraised at a scorching 41°C (105.8°F). Weather in March »
Weather in April
April, like March, is another tropical spring month in Kottawa, Sri Lanka, with an average temperature ranging between min 26°C (78.8°F) and max 31.4°C (88.5°F). The months of March and April are noted for their peak temperatures, with an average high-temperature of 31.4°C (88.5°F). The heat index in April is appraised at a blisteringly hot 41°C (105.8°F). Weather in April »
Weather in May
The last month of the spring, May, is also a hot month in Kottawa, Sri Lanka, with an average temperature ranging between max 30.3°C (86.5°F) and min 26.4°C (79.5°F). May's arrival registers an average high-temperature of a still hot 30.3°C (86.5°F), closely aligning with the temperature of the previous month. Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Kottawa, Sri Lanka, with temperature in the range of an average low of 26.1°C (79°F) and an average high of 29.2°C (84.6°F). Kottawa, Sri Lanka, records a slight change with June's average high-temperatures adjusting to a moderately hot 29.2°C (84.6°F) from May's 30.3°C (86.5°F). Weather in June »
Weather in July
July, like June, in Kottawa, Sri Lanka, is another warm summer month, with an average temperature fluctuating between 28.8°C (83.8°F) and 25.5°C (77.9°F). The unfolding of July shows an average high-temperature of a still warm 28.8°C (83.8°F), indicating a slight variance from June's 29.2°C (84.6°F). Weather in July »
Weather in August
August, the last month of the summer in Kottawa, is also a moderately hot month, with an average temperature ranging between min 25.5°C (77.9°F) and max 28.6°C (83.5°F). August, with an average high of 28.6°C (83.5°F) and a low of 25.5°C (77.9°F), signifies the coldest month of the year. August's average heat index is appraised at a tropical 34°C (93.2°F). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Kottawa, Sri Lanka, with an average temperature varying between 28.9°C (84°F) and 25.2°C (77.4°F). The transition from August to September sees an average high-temperature of a still warm 28.9°C (84°F), indicating a minor variance from the prior month. Weather in September »
Weather in October
October, the same as September, is another warm autumn month in Kottawa, Sri Lanka, with an average temperature varying between 29.7°C (85.5°F) and 25.4°C (77.7°F). Kottawa experiences a recorded average high-temperature of a still warm 29.7°C (85.5°F) in October, closely aligned with September's 28.9°C (84°F). Weather in October »
Weather in November
November, the last month of the autumn in Kottawa, is a hot month, with an average temperature ranging between min 24.7°C (76.5°F) and max 30°C (86°F). The commencement of November records an average high-temperature of a hot 30°C (86°F), barely varying from October's 29.7°C (85.5°F). Weather in November »
Weather in December
The first month of the winter, December, is also a moderately hot month in Kottawa, Sri Lanka, with an average temperature varying between 29.7°C (85.5°F) and 24.1°C (75.4°F). December notes an average high-temperature of a moderately hot 29.7°C (85.5°F), subtly differing from November's 30°C (86°F). Weather in December »
Updated: Jun 19, 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?
January is the least humid month, with an average relative humidity of 74%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 11.2 days and accumulates 37mm (1.46") of precipitation.
How much does it rain?
In Kottawa, during the entire year, the rain falls for 272.3 days and collects up to 2039mm (80.28") of precipitation.
What month has the most sunshine in Kottawa?
January has the most sunshine of the year, with an average of 9.2h of sunshine.
What is the month with the highest UV index?
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index.
What are the warmest months?
The highest point of temperatures falls in March and April, when the average high-temperature ascends to 31.4°C (88.5°F).
What is the month with the lowest UV index?
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?
June through August, with an average relative humidity of 83%, are most humid months.
What is the rainiest month?
June is the month with the most rainfall. Rain falls for 28.7 days and accumulates 329mm (12.95") of precipitation.
When are the longest days?
With an average of 12h and 30min of daylight, June has the longest days of the year.
What part of the year is the coldest?
In Kottawa, the lowest temperatures are generally noted in August, averaging a high of 28.6°C (83.5°F) and a low of 25.5°C (77.9°F).
What is the month with the least sunshine?
The month with the least sunshine is November, with an average of 6.6h of sunshine.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 11h and 42min of daylight.
Is there Daylight Saving Time (DST)?
Kottawa does not utilize Daylight Saving Time (DST). +0530 timezone is used over the entire year.
Average temperature
Kottawa, Sri Lanka
The warmest months (with the highest average high temperature) are March and April (31.4°C).
The month with the lowest average high temperature is August (28.6°C).
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (23.3°C).
Average pressure
Kottawa, 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:
1008.6mbar - Average pressure in June:
1008.7mbar
- Average pressure in July:
1008.8mbar - Average pressure in August:
1009.1mbar - Average pressure in September:
1009.8mbar - Average pressure in October:
1010mbar - Average pressure in November:
1009.8mbar - 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 (1008.6mbar).
Average wind speed
Kottawa, Sri Lanka
- Average wind speed in January:
12.7km/h - Average wind speed in February:
9.8km/h - Average wind speed in March:
8km/h - Average wind speed in April:
8.7km/h - Average wind speed in May:
13.4km/h - Average wind speed in June:
15.9km/h
- Average wind speed in July:
14.8km/h - Average wind speed in August:
15km/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:
11.6km/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 (8km/h).
Average humidity
Kottawa, Sri Lanka
The months with the highest relative humidity are June, July and August (83%).
The month with the lowest relative humidity is January (74%).
Average rainfall
Kottawa, Sri Lanka
- Average rainfall in January:
37mm - Average rainfall in February:
40mm - Average rainfall in March:
51mm - Average rainfall in April:
99mm - Average rainfall in May:
279mm - Average rainfall in June:
329mm
- Average rainfall in July:
261mm - Average rainfall in August:
286mm - Average rainfall in September:
189mm - Average rainfall in October:
195mm - Average rainfall in November:
149mm - Average rainfall in December:
124mm
The wettest month (with the highest rainfall) is June (329mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days
Kottawa, Sri Lanka
- Average rainfall days in January:
11.2 days - Average rainfall days in February:
12.6 days - Average rainfall days in March:
17.2 days - Average rainfall days in April:
24.4 days - Average rainfall days in May:
27.1 days - Average rainfall days in June:
28.7 days
- Average rainfall days in July:
29.4 days - Average rainfall days in August:
29.8 days - Average rainfall days in September:
24.3 days - Average rainfall days in October:
24.3 days - Average rainfall days in November:
23.4 days - Average rainfall days in December:
19.9 days
The month with the highest number of rainy days is August (29.8 days).
The month with the least rainy days is January (11.2 days).
Average daylight / Average sunshine
Kottawa, 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 1min - Average sunshine in March:
9h and 1min - 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 4min - Average sunshine in August:
7h and 1min - Average sunshine in September:
7h and 3min - Average sunshine in October:
7h and 5min - Average sunshine in November:
6h and 4min - Average sunshine in December:
7h and 0min
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 36min).
Average sunshine days
Kottawa, Sri Lanka
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
12.1 days - Average sunshine days in April:
4.3 days - Average sunshine days in May:
2.7 days - Average sunshine days in June:
0.8 days
- Average sunshine days in July:
0.4 days - Average sunshine days in August:
0.8 days - Average sunshine days in September:
3.8 days - Average sunshine days in October:
5 days - Average sunshine days in November:
5.7 days - Average sunshine days in December:
8.9 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is July (0.4 days).
Average UV index
Kottawa, 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).
Average cloud cover
Kottawa, 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
Kottawa, 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).
