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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 hot winter month in Bamunumulla, Sri Lanka, with temperature in the range of an average high of 30.3°C (86.5°F) and an average low of 23.4°C (74.1°F). January brings an average high-temperature of a hot 30.3°C (86.5°F), showing a slight difference from December's 29.7°C (85.5°F). Weather in January »
Weather in February
The last month of the winter, February, is another hot month in Bamunumulla, Sri Lanka, with an average temperature fluctuating between 23.5°C (74.3°F) and 30.9°C (87.6°F). The high-temperature average in February for Bamunumulla is a still tropical 30.9°C (87.6°F), staying closely aligned with January's conditions. Weather in February »
Weather in March
March, the first month of the spring in Bamunumulla, is still a hot month, with an average temperature ranging between min 25°C (77°F) and max 31.3°C (88.3°F). Bamunumulla's temperature peaks during March and April, with an average high-temperature of 31.3°C (88.3°F). March's heat index is estimated at a blisteringly hot 41°C (105.8°F). Weather in March »
Weather in April
April, the same as March, in Bamunumulla, Sri Lanka, is another tropical spring month, with temperature in the range of an average high of 31.3°C (88.3°F) and an average low of 26°C (78.8°F). March and April, when the average high-temperature reaches 31.3°C (88.3°F), are the warmest months. The average heat index in April is estimated at an extremely hot 41°C (105.8°F). Weather in April »
Weather in May
The last month of the spring, May, is another hot month in Bamunumulla, Sri Lanka, with an average temperature varying between 30.2°C (86.4°F) and 26.3°C (79.3°F). With the onset of May, the average high-temperature registers at a still tropical 30.2°C (86.4°F), subtly different 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 Bamunumulla, 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). With June's arrival, Bamunumulla notes an average high-temperature of a warm 29.2°C (84.6°F), closely following the trend of the preceding month. Weather in June »
Weather in July
July, like June, in Bamunumulla, Sri Lanka, is another warm summer month, with an average temperature fluctuating between 28.7°C (83.7°F) and 25.6°C (78.1°F). The beginning of July records an average high-temperature of a still warm 28.7°C (83.7°F), marking a negligible difference from June's 29.2°C (84.6°F). Weather in July »
Weather in August
August, the last month of the summer in Bamunumulla, is also a moderately hot month, with an average temperature ranging between max 28.6°C (83.5°F) and min 25.5°C (77.9°F). August stands out as Bamunumulla's coldest month, with an average high-temperature of 28.6°C (83.5°F) and a low-temperature of 25.5°C (77.9°F). Throughout August, the heat index is estimated at a tropical 34°C (93.2°F). Weather in August »
Weather in September
September, the first month of the autumn in Bamunumulla, is also a moderately hot month, with an average temperature fluctuating between 28.8°C (83.8°F) and 25.2°C (77.4°F). In September, Bamunumulla's weather conditions record an average high-temperature of a still moderately hot 28.8°C (83.8°F), demonstrating little divergence from the preceding month. Weather in September »
Weather in October
October, the same as September, is another warm autumn month in Bamunumulla, Sri Lanka, with an average temperature ranging between max 29.6°C (85.3°F) and min 25.5°C (77.9°F). Bamunumulla's average high-temperature marks a still moderately hot 29.6°C (85.3°F) with the advent of October, closely mirroring that of the preceding month. Weather in October »
Weather in November
The last month of the autumn, November, is also a moderately hot month in Bamunumulla, Sri Lanka, with an average temperature varying between 24.8°C (76.6°F) and 29.8°C (85.6°F). The average high-temperature in November, at a still warm 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 Bamunumulla, is still a warm month, with an average temperature ranging between min 24.4°C (75.9°F) and max 29.7°C (85.5°F). With the advent of December, Bamunumulla's high-temperatures adjust to a still warm 29.7°C (85.5°F), closely aligning with the preceding month. 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 are the least humid months in Bamunumulla?
January and February, with an average relative humidity of 75%, are the least humid months in Bamunumulla.
What is the driest month in Bamunumulla?
The month with the least rainfall is January, when the rain falls for 8.9 days and typically collects 25mm (0.98") of precipitation.
How many days does it rain in Bamunumulla?
In Bamunumulla, Sri Lanka, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.
What month has the most sunshine in Bamunumulla?
With an average of 9.2h of sunshine, January has the most sunshine of the year.
What are the months with the highest UV index in Bamunumulla?
The months with the highest UV index in Bamunumulla, Sri Lanka, are January through April, July, September through December, with an average maximum UV index of 7.
What time of the year is the hottest in Bamunumulla?
March and April are the warmest months, with an average high-temperature of 31.3°C (88.3°F).
What are the months with the lowest UV index in Bamunumulla?
The months with the lowest UV index in Bamunumulla are May, June and August, with an average maximum UV index of 6.
What are the most humid months in Bamunumulla?
June through August, with an average relative humidity of 83%, are most humid months.
What is the rainiest month in Bamunumulla?
June is the month with the most rainfall in Bamunumulla, Sri Lanka. Rain falls for 29.2 days and accumulates 350mm (13.78") of precipitation.
When are the longest days in Bamunumulla?
With an average of 12h and 30min of daylight, June has the longest days of the year.
What is the coldest time of year in Bamunumulla?
The month of August, characterized by an average high of 28.6°C (83.5°F) and a low of 25.5°C (77.9°F), is recognized as the coldest in Bamunumulla, Sri Lanka.
What is the month with the least sunshine in Bamunumulla?
The month with the least sunshine is November, with an average of 6.8h of sunshine.
What is the month with the shortest days in Bamunumulla?
December has the shortest days of the year in Bamunumulla, with an average of 11h and 42min of daylight.
Is there Daylight Saving Time (DST) in Bamunumulla?
Bamunumulla does not observe Daylight Saving Time (DST). +0530 timezone is used throughout the entire year.
Average temperature
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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
Bamunumulla, 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).
