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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 Ragama, Sri Lanka, with an average temperature varying between 23.1°C (73.6°F) and 30.8°C (87.4°F). Ragama ushers in January with an average high-temperature of a tropical 30.8°C (87.4°F), showing a close resemblance to the previous month. Weather in January »
Weather in February
February, the last month of the winter in Ragama, is another hot month, with an average temperature fluctuating between 31.4°C (88.5°F) and 23.3°C (73.9°F). Ragama records a slight change with February's average high-temperatures adjusting to a still hot 31.4°C (88.5°F) from January's 30.8°C (87.4°F). Weather in February »
Weather in March
The first month of the spring, March, is still a tropical month in Ragama, Sri Lanka, with an average temperature fluctuating between 31.8°C (89.2°F) and 24.3°C (75.7°F). March and April are known as Ragama's warmest months, with an average high-temperature of 31.8°C (89.2°F). The heat index value for March is calculated to be a blisteringly hot 42°C (107.6°F). Weather in March »
Weather in April
April, the same as March, in Ragama, Sri Lanka, is another tropical spring month, with an average temperature ranging between min 25.8°C (78.4°F) and max 31.8°C (89.2°F). Ragama experiences the peak of its temperatures in March and April, when the average high-temperatures rise to 31.8°C (89.2°F). For April, the heat index is calculated to be a blistering 42°C (107.6°F). Weather in April »
Weather in May
The last month of the spring, May, is another hot month in Ragama, Sri Lanka, with an average temperature varying between 26.3°C (79.3°F) and 30.6°C (87.1°F). The arrival of May brings an average high-temperature of a still tropical 30.6°C (87.1°F), closely following the temperature pattern of April. Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Ragama, Sri Lanka, with an average temperature fluctuating between 25.8°C (78.4°F) and 29.3°C (84.7°F). With the advent of June, Ragama experiences an average high-temperature of a warm 29.3°C (84.7°F), mirroring a close resemblance to the previous month. Weather in June »
Weather in July
July, like June, in Ragama, Sri Lanka, is another warm summer month, with temperature in the range of an average low of 25.3°C (77.5°F) and an average high of 28.9°C (84°F). Ragama witnesses its lowest temperatures during July and August, when the average high-temperature reaches 28.9°C (84°F). July's heat index is calculated to be a sweltering 35°C (95°F). Weather in July »
Weather in August
August, the last month of the summer in Ragama, is also a moderately hot month, with an average temperature varying between 28.9°C (84°F) and 25.2°C (77.4°F). During July and August, Ragama experiences its coldest period, with an average high-temperature of 28.9°C (84°F). The heat index for August is calculated to be a fiery hot 35°C (95°F). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Ragama, Sri Lanka, with temperature in the range of an average low of 24.9°C (76.8°F) and an average high of 29.1°C (84.4°F). September registers an average high-temperature of a still warm 29.1°C (84.4°F), slightly varied from August's 28.9°C (84°F). Weather in September »
Weather in October
October is a tropical autumn month in Ragama, Sri Lanka, with temperature in the range of an average low of 25°C (77°F) and an average high of 30°C (86°F). Welcoming October, Ragama notes an average high-temperature of a tropical 30°C (86°F), nearly consistent with September's 29.1°C (84.4°F). Weather in October »
Weather in November
The last month of the autumn, November, is another hot month in Ragama, Sri Lanka, with an average temperature varying between 24.5°C (76.1°F) and 30.1°C (86.2°F). With the start of November, Ragama measures an average high-temperature of a still hot 30.1°C (86.2°F), not significantly differing from October's 30°C (86°F). Weather in November »
Weather in December
The first month of the winter, December, is also a moderately hot month in Ragama, Sri Lanka, with temperature in the range of an average low of 23.7°C (74.7°F) and an average high of 29.9°C (85.8°F). With the advent of December, Ragama experiences an average high-temperature of a moderately hot 29.9°C (85.8°F), mirroring a close resemblance to the previous month. Weather in December »
Updated: Aug 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
What is the least humid month?
The months with the lowest humidity are January and February, with an average relative humidity of 74%.
What is the driest month?
January is the month with the least rainfall in Ragama. Rain falls for 11.6 days and accumulates 40mm (1.57") of precipitation.
How many days does it rain in Ragama?
Throughout the year, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.
What month has the most sunshine?
January has the most sunshine of the year, with an average of 9.1h of sunshine.
When is 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 month is the hottest?
During March and April, Ragama experiences its warmest period, with an average high-temperature of 31.8°C (89.2°F).
When is 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 29.3 days and accumulates 341mm (13.43") of precipitation.
When are the longest days?
The month with the longest days is June, with an average of 12h and 30min of daylight.
What is the coldest month?
In Ragama, the months of July and August are known for the lowest temperatures, reaching an average high of 28.9°C (84°F).
What is the month with the least sunshine?
November has the least sunshine of the year, with an average of 6.7h of sunshine.
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)?
Ragama does not utilize Daylight Saving Time (DST). +0530 timezone is used throughout the entire year.
Average temperature
Ragama, Sri Lanka
The warmest months (with the highest average high temperature) are March and April (31.8°C).
The months with the lowest average high temperature are July and August (28.9°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 (23.1°C).
Average pressure
Ragama, 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:
1008.7mbar - Average pressure in August:
1009.1mbar - Average pressure in September:
1009.8mbar - Average pressure in October:
1009.9mbar - 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
Ragama, Sri Lanka
- Average wind speed in January:
12.8km/h - Average wind speed in February:
9.9km/h - Average wind speed in March:
8km/h - Average wind speed in April:
8.6km/h - Average wind speed in May:
12.9km/h - Average wind speed in June:
15.1km/h
- Average wind speed in July:
14.1km/h - Average wind speed in August:
14.2km/h - Average wind speed in September:
13.2km/h - Average wind speed in October:
10.2km/h - Average wind speed in November:
8.9km/h - Average wind speed in December:
11.5km/h
The windiest month (with the highest average wind speed) is June (15.1km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).
Average humidity
Ragama, 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 (74%).
Average rainfall
Ragama, Sri Lanka
- Average rainfall in January:
40mm - Average rainfall in February:
47mm - Average rainfall in March:
66mm - Average rainfall in April:
137mm - Average rainfall in May:
306mm - Average rainfall in June:
341mm
- Average rainfall in July:
256mm - Average rainfall in August:
287mm - Average rainfall in September:
206mm - Average rainfall in October:
237mm - Average rainfall in November:
191mm - Average rainfall in December:
148mm
The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days
Ragama, Sri Lanka
- Average rainfall days in January:
11.6 days - Average rainfall days in February:
13.8 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
25.4 days - Average rainfall days in May:
28.8 days - Average rainfall days in June:
29.3 days
- Average rainfall days in July:
29.8 days - Average rainfall days in August:
30.2 days - Average rainfall days in September:
26.9 days - Average rainfall days in October:
27 days - Average rainfall days in November:
25.7 days - Average rainfall days in December:
21.1 days
The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (11.6 days).
Average daylight / Average sunshine
Ragama, 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:
8h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
8h and 0min
- Average sunshine in July:
7h and 4min - Average sunshine in August:
7h and 0min - Average sunshine in September:
7h and 2min - Average sunshine in October:
7h and 4min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 5min
The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days
Ragama, Sri Lanka
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
8.2 days - Average sunshine days in April:
2.6 days - Average sunshine days in May:
1.3 days - Average sunshine days in June:
0.3 days
- Average sunshine days in July:
0.4 days - Average sunshine days in August:
0.3 days - Average sunshine days in September:
1.5 days - Average sunshine days in October:
1.7 days - Average sunshine days in November:
3.6 days - Average sunshine days in December:
8.3 days
The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are June and August (0.3 days).
Average UV index
Ragama, 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
Ragama, Sri Lanka
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility
Ragama, Sri Lanka
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
