Expand
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 Nampamunuwa, Sri Lanka, with an average temperature fluctuating between 23.3°C (73.9°F) and 30.3°C (86.5°F). The advent of January signifies a minor shift to an average high-temperature of a tropical 30.3°C (86.5°F), aligning closely with December. Weather in January »
Weather in February
February, the last month of the winter in Nampamunuwa, is another hot month, with temperature in the range of an average low of 23.5°C (74.3°F) and an average high of 31.2°C (88.2°F). The transition into February is marked with an average high-temperature of a still hot 31.2°C (88.2°F), showing an insignificant shift from January's 30.3°C (86.5°F). Weather in February »
Weather in March
The first month of the spring, March, is also a hot month in Nampamunuwa, Sri Lanka, with an average temperature varying between 24.8°C (76.6°F) and 31.4°C (88.5°F). Nampamunuwa experiences its warmest period in March and April, averaging a high-temperature of 31.4°C (88.5°F). The heat index value for March is calculated to be a scorching 41°C (105.8°F). Weather in March »
Weather in April
April, the same as March, in Nampamunuwa, Sri Lanka, is another tropical spring month, with an average temperature varying between 26°C (78.8°F) and 31.4°C (88.5°F). The peak of Nampamunuwa's temperatures is noted during March and April, averaging a high-temperature of 31.4°C (88.5°F). For April, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Weather in April »
Weather in May
May, the last month of the spring in Nampamunuwa, is another tropical month, with temperature in the range of an average low of 26.4°C (79.5°F) and an average high of 30.3°C (86.5°F). Nampamunuwa's weather in May, with an average high-temperature of a still hot 30.3°C (86.5°F), subtly shifts from April's 31.4°C (88.5°F). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Nampamunuwa, Sri Lanka, with an average temperature ranging between max 29.2°C (84.6°F) and min 26.1°C (79°F). During June, Nampamunuwa records an average high-temperature of a warm 29.2°C (84.6°F), marking a slight divergence from May's 30.3°C (86.5°F). Weather in June »
Weather in July
July, like June, in Nampamunuwa, Sri Lanka, is a moderately hot summer month, with an average temperature ranging between min 25.5°C (77.9°F) and max 28.8°C (83.8°F). Nampamunuwa experiences a minor change to a still moderately hot 28.8°C (83.8°F) in average high-temperature during July, closely reflecting June. Weather in July »
Weather in August
August, the last month of the summer in Nampamunuwa, is another warm month, with an average temperature fluctuating between 28.6°C (83.5°F) and 25.5°C (77.9°F). August, known for its average high temperature of 28.6°C (83.5°F) and an average low temperature of 25.5°C (77.9°F), is the coldest month. The average heat index in August is calculated to be a hot 34°C (93.2°F). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Nampamunuwa, Sri Lanka, with an average temperature varying between 28.8°C (83.8°F) and 25.2°C (77.4°F). Nampamunuwa's transition from August to September introduces an average high-temperature of a still warm 28.8°C (83.8°F), marking an insignificant variation from the 28.6°C (83.5°F). Weather in September »
Weather in October
October, like September, in Nampamunuwa, Sri Lanka, is another warm autumn month, with temperature in the range of an average low of 25.4°C (77.7°F) and an average high of 29.7°C (85.5°F). The dawn of October sees an average high-temperature of a still moderately hot 29.7°C (85.5°F), subtly contrasting with September's 28.8°C (83.8°F). Weather in October »
Weather in November
November, the last month of the autumn in Nampamunuwa, is a hot month, with temperature in the range of an average high of 30°C (86°F) and an average low of 24.7°C (76.5°F). The introduction of November sees an average high-temperature of a hot 30°C (86°F), hardly deviating from October. Weather in November »
Weather in December
December, the first month of the winter in Nampamunuwa, is still a warm month, with an average temperature varying between 29.7°C (85.5°F) and 24.1°C (75.4°F). Nampamunuwa observes an average high-temperature of a moderately hot 29.7°C (85.5°F) in December, barely different from 30°C (86°F) in November. Weather in December »
Updated: Aug 31, 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 Nampamunuwa?
January is the least humid month, with an average relative humidity of 74%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 11.2 days and typically collects 37mm (1.46") of precipitation.
How much does it rain?
Throughout the year, there are 272.8 rainfall days, and 2100mm (82.68") of precipitation is accumulated.
What month has the most sunshine?
The month with the most sunshine in Nampamunuwa is January, 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, November and December, with an average maximum UV index of 7.
What is the warmest month?
Nampamunuwa witnesses its highest temperatures in March and April, reaching an average of 31.4°C (88.5°F).
What are the months 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?
The months with the highest humidity are June through August, with an average relative humidity of 83%.
What is the wettest 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 are the coldest months?
The lowest temperatures are recorded in August, with averages reaching 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?
November has the least sunshine of the year, 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)?
Nampamunuwa does not utilize Daylight Saving Time (DST). +0530 timezone is used throughout the entire year.
Average temperature
Nampamunuwa, 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
Nampamunuwa, 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:
1009.7mbar - 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
Nampamunuwa, 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:
13.7km/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
Nampamunuwa, 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
Nampamunuwa, 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:
250mm - 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
Nampamunuwa, 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:
24.8 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
Nampamunuwa, 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 2min - 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
Nampamunuwa, 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:
3.5 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
Nampamunuwa, 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
Nampamunuwa, Sri Lanka
The month with the most cloud cover is September (Cloud cover 56).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility
Nampamunuwa, 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).
