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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 Niwanthidiya, Sri Lanka, is a hot winter month, with an average temperature ranging between min 23.3°C (73.9°F) and max 30.3°C (86.5°F). During January, Niwanthidiya records an average high-temperature of a tropical 30.3°C (86.5°F), marking a slight divergence from December's 29.7°C (85.5°F). Weather in January »
Weather in February
February, the last month of the winter in Niwanthidiya, is another tropical month, with an average temperature varying between 31.2°C (88.2°F) and 23.5°C (74.3°F). The transition into February reveals an average high-temperature of a still hot 31.2°C (88.2°F), mirroring a close resemblance to January. Weather in February »
Weather in March
The first month of the spring, March, is still a tropical month in Niwanthidiya, Sri Lanka, with an average temperature varying between 24.8°C (76.6°F) and 31.4°C (88.5°F). The warmest period is usually observed in March and April, with the average high-temperature peaking at 31.4°C (88.5°F). The average heat index in March is computed to be a blistering 41°C (105.8°F). Weather in March »
Weather in April
April, like March, is another tropical spring month in Niwanthidiya, Sri Lanka, with an average temperature fluctuating between 26°C (78.8°F) and 31.4°C (88.5°F). March and April are identified as the warmest months, with an average high-temperature of 31.4°C (88.5°F). For April, the heat index is computed to be a blisteringly hot 41°C (105.8°F). Weather in April »
Weather in May
May, the last month of the spring in Niwanthidiya, is also a hot month, with an average temperature fluctuating between 26.4°C (79.5°F) and 30.3°C (86.5°F). With the advent of May, Niwanthidiya's high-temperatures adjust to a still tropical 30.3°C (86.5°F), closely aligning with the preceding month. Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Niwanthidiya, Sri Lanka, with an average temperature fluctuating between 29.2°C (84.6°F) and 26.1°C (79°F). Entering June, the average high-temperature is recorded at a moderately hot 29.2°C (84.6°F), exhibiting a minimal shift from May's 30.3°C (86.5°F). Weather in June »
Weather in July
July, like June, in Niwanthidiya, Sri Lanka, is a moderately hot summer month, with an average temperature varying between 28.8°C (83.8°F) and 25.5°C (77.9°F). The shift into July uncovers an average high-temperature of a still moderately hot 28.8°C (83.8°F), subtly different from the previous month. Weather in July »
Weather in August
August, the last month of the summer in Niwanthidiya, is also a moderately hot month, with an average temperature fluctuating between 28.6°C (83.5°F) and 25.5°C (77.9°F). The coldest month is August, with an average high-temperature of 28.6°C (83.5°F) and an average low-temperature of 25.5°C (77.9°F). August's average heat index is computed to be a hot 34°C (93.2°F). Weather in August »
Weather in September
September, the first month of the autumn in Niwanthidiya, is still a warm month, with an average temperature varying between 25.2°C (77.4°F) and 28.9°C (84°F). The shift into September uncovers an average high-temperature of a still moderately hot 28.9°C (84°F), subtly different from the previous month. Weather in September »
Weather in October
October, the same as September, is another warm autumn month in Niwanthidiya, Sri Lanka, with an average temperature fluctuating between 29.7°C (85.5°F) and 25.4°C (77.7°F). With October's arrival, Niwanthidiya's weather records an average high-temperature of a still moderately hot 29.7°C (85.5°F), marking little difference from September's 28.9°C (84°F). Weather in October »
Weather in November
The last month of the autumn, November, is a tropical month in Niwanthidiya, Sri Lanka, with an average temperature varying between 30°C (86°F) and 24.7°C (76.5°F). Entering November, Niwanthidiya's average high-temperature reads a tropical 30°C (86°F), indicating a close resemblance to the previous month's climate. Weather in November »
Weather in December
The first month of the winter, December, is still a warm month in Niwanthidiya, Sri Lanka, with an average temperature ranging between max 29.7°C (85.5°F) and min 24.1°C (75.4°F). The commencement of December notes an average high-temperature of a moderately hot 29.7°C (85.5°F), exhibiting little difference from the previous 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 is the least humid month in Niwanthidiya?
With an average relative humidity of 74%, January is the least humid month in Niwanthidiya, Sri Lanka.
What is the driest month in Niwanthidiya?
January is the month with the least rainfall in Niwanthidiya. Rain falls for 11.2 days and accumulates 37mm (1.46") of precipitation.
How much does it rain in Niwanthidiya?
Throughout the year, in Niwanthidiya, there are 272.3 rainfall days, and 2039mm (80.28") of precipitation is accumulated.
What month has the most sunshine in Niwanthidiya?
The month with the most sunshine is January, with an average of 9.2h of sunshine.
What are the months with the highest UV index in Niwanthidiya?
The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7.
What part of the year is the hottest in Niwanthidiya?
Temperatures in Niwanthidiya, Sri Lanka, reach their maximum during March and April, recording an average high-temperature of 31.4°C (88.5°F).
When is the lowest UV index in Niwanthidiya?
May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index.
What is the most humid month in Niwanthidiya?
June through August, with an average relative humidity of 83%, are most humid months in Niwanthidiya.
What is the wettest month in Niwanthidiya?
The month with the most rainfall in Niwanthidiya is June, when the rain falls for 28.7 days and typically aggregates up to 329mm (12.95") of precipitation.
When are the longest days in Niwanthidiya?
The month with the longest days in Niwanthidiya is June, with an average of 12h and 30min of daylight.
What month is the coldest in Niwanthidiya?
The month of August sees the average lowest temperatures in Niwanthidiya, Sri Lanka, reaching 28.6°C (83.5°F) at the peak and 25.5°C (77.9°F) at the low.
What is the month with the least sunshine in Niwanthidiya?
The month with the least sunshine in Niwanthidiya, Sri Lanka, is November, with an average of 6.6h of sunshine.
What is the month with the shortest days in Niwanthidiya?
With an average of 11h and 42min of daylight, December has the shortest days of the year.
Is there Daylight Saving Time (DST) in Niwanthidiya?
Niwanthidiya, Sri Lanka, does not utilize Daylight Saving Time (DST). +0530 timezone is used over the entire year.
Average temperature
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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
Niwanthidiya, 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).
