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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 Thanthirimulla, Sri Lanka, with an average temperature ranging between max 30.3°C (86.5°F) and min 23.4°C (74.1°F). The onset of January manifests an average high-temperature of a tropical 30.3°C (86.5°F), demonstrating a minor variation from the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is another tropical month in Thanthirimulla, Sri Lanka, with an average temperature fluctuating between 30.9°C (87.6°F) and 23.5°C (74.3°F). February is marked by an average high-temperature of a still hot 30.9°C (87.6°F), almost identical to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is still a hot month in Thanthirimulla, Sri Lanka, with an average temperature ranging between max 31.3°C (88.3°F) and min 25°C (77°F). The temperature hits its peak in March and April, recording an average high-temperature of 31.3°C (88.3°F). In March, the average heat index is appraised at a blistering 41°C (105.8°F). Weather in March »
Weather in April
April, like March, is another hot spring month in Thanthirimulla, Sri Lanka, with an average temperature ranging between min 26°C (78.8°F) and max 31.3°C (88.3°F). In Thanthirimulla, March and April are characterised by the peak of temperatures, recording an average high of 31.3°C (88.3°F). The heat index for 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 another hot month in Thanthirimulla, Sri Lanka, with an average temperature fluctuating between 30.2°C (86.4°F) and 26.3°C (79.3°F). Thanthirimulla registers an average high-temperature of a still hot 30.2°C (86.4°F) with the arrival of May, showing minor deviation from the preceding month. Weather in May »
Weather in June
June, the first month of the summer in Thanthirimulla, is also a moderately hot month, with an average temperature fluctuating between 26.1°C (79°F) and 29.2°C (84.6°F). June's onset records an average high-temperature of a warm 29.2°C (84.6°F), a near match to May's 30.2°C (86.4°F). Weather in June »
Weather in July
July, like June, in Thanthirimulla, Sri Lanka, is a moderately hot summer month, with an average temperature ranging between min 25.6°C (78.1°F) and max 28.7°C (83.7°F). Thanthirimulla greets July with an average high-temperature of a still warm 28.7°C (83.7°F), marking a slight deviation from the preceding month. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Thanthirimulla, Sri Lanka, with temperature in the range of an average high of 28.6°C (83.5°F) and an average low of 25.5°C (77.9°F). The coldest period tends to be August, when average temperatures fluctuate between a high of 28.6°C (83.5°F) and a low of 25.5°C (77.9°F). The heat index value for August is appraised at a tropical 34°C (93.2°F). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Thanthirimulla, Sri Lanka, with temperature in the range of an average high of 28.8°C (83.8°F) and an average low of 25.2°C (77.4°F). The transition into September notes an average high-temperature of a still warm 28.8°C (83.8°F), revealing a mild distinction from the 28.6°C (83.5°F) in August. Weather in September »
Weather in October
October, like September, in Thanthirimulla, Sri Lanka, is a moderately hot autumn month, with temperature in the range of an average low of 25.5°C (77.9°F) and an average high of 29.6°C (85.3°F). The transition into October is marked with an average high-temperature of a still warm 29.6°C (85.3°F), showing an insignificant shift from September's 28.8°C (83.8°F). Weather in October »
Weather in November
The last month of the autumn, November, is another warm month in Thanthirimulla, Sri Lanka, with temperature in the range of an average high of 29.8°C (85.6°F) and an average low of 24.8°C (76.6°F). On the advent of November, Thanthirimulla's average high-temperature exhibits a minor adjustment to a still warm 29.8°C (85.6°F) from October's 29.6°C (85.3°F). Weather in November »
Weather in December
December, the first month of the winter in Thanthirimulla, is still a warm month, with temperature in the range of an average low of 24.4°C (75.9°F) and an average high of 29.7°C (85.5°F). December begins with an average high-temperature of a still warm 29.7°C (85.5°F), reflecting close similarity to the preceding month. Weather in December »
Updated: Jun 10, 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 and February, with an average relative humidity of 75%, are the least humid months.
What is the driest month?
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?
Throughout the year, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.
What month has the most sunshine?
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?
The months with the highest UV index are January through April, July, September through December, with an average maximum UV index of 7.
What is the hottest time of year?
Thanthirimulla's warmest season falls during March and April, averaging a high-temperature of 31.3°C (88.3°F).
What are the months with the lowest UV index?
The months with the lowest UV index are May, June and August, with an average maximum UV index of 6.
What are the most humid months?
June through August, with an average relative humidity of 83%, are most humid months.
What is the wettest month in Thanthirimulla?
The month with the most rainfall 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?
With an average of 12h and 30min of daylight, June has the longest days of the year.
What are the coldest months?
August stands out as Thanthirimulla's coldest month, with temperatures ranging between an average 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?
With an average of 6.8h of sunshine, November has the least sunshine of the year in Thanthirimulla.
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)?
Thanthirimulla does not observe Daylight Saving Time (DST). +0530 timezone is used over the entire year.
Average temperature
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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
Thanthirimulla, 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).
