Climate and monthly weather forecastWalahanduwa, Sri Lanka
Walahanduwa, Sri Lanka - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data. In Walahanduwa, Sri Lanka, during the entire year, the rain falls for 286.9 days and collects up to 1974mm (77.72") of precipitation. The months with the highest UV index in Walahanduwa, Sri Lanka, are January through April, June through August, October through December, with an average maximum UV index of 7.
Climate and monthly weather forecast
Weather in January
January, the same as December, is a moderately hot winter month in Walahanduwa, Sri Lanka, with an average temperature fluctuating between 29.2°C (84.6°F) and 24°C (75.2°F). Walahanduwa's January average high-temperature settles at a still warm 29.2°C (84.6°F), showing a near match with the preceding month. Weather in January »Weather in February
February, the last month of the winter in Walahanduwa, is another warm month, with an average temperature varying between 29.7°C (85.5°F) and 24.3°C (75.7°F). February's arrival brings an average high-temperature of a still moderately hot 29.7°C (85.5°F), slightly deviating from January's 29.2°C (84.6°F). Weather in February »Weather in March
The first month of the spring, March, is a hot month in Walahanduwa, Sri Lanka, with an average temperature ranging between max 30.3°C (86.5°F) and min 25.3°C (77.5°F). Walahanduwa experiences the peak of its temperatures in March and April, when the average high-temperatures rise to 30.3°C (86.5°F). For March, the heat index is evaluated at a fiery hot 38°C (100.4°F). Weather in March »Weather in April
April, like March, is a hot spring month in Walahanduwa, Sri Lanka, with an average temperature fluctuating between 26.4°C (79.5°F) and 30.3°C (86.5°F). March and April represent the warmest period, with an average high-temperature of 30.3°C (86.5°F). For most parts of April, the heat index is evaluated at a fiery hot 38°C (100.4°F). Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Walahanduwa, Sri Lanka, with an average temperature fluctuating between 29.5°C (85.1°F) and 26.7°C (80.1°F). The introduction of May sees an average high-temperature of a warm 29.5°C (85.1°F), hardly deviating from April. Weather in May »Weather in June
June, the first month of the summer in Walahanduwa, is still a warm month, with temperature in the range of an average low of 26.6°C (79.9°F) and an average high of 28.8°C (83.8°F). The advent of June brings an average high-temperature of a still moderately hot 28.8°C (83.8°F), almost identical to the preceding month. Weather in June »Weather in July
July, the same as June, is another warm summer month in Walahanduwa, Sri Lanka, with an average temperature varying between 26.2°C (79.2°F) and 28.7°C (83.7°F). Walahanduwa's shift into July is marked by a subtle change to a still moderately hot 28.7°C (83.7°F) from June's 28.8°C (83.8°F) in temperature. Weather in July »Weather in August
August, the last month of the summer in Walahanduwa, is another warm month, with an average temperature fluctuating between 28.3°C (82.9°F) and 25.9°C (78.6°F). August and September are characterised by lowest temperatures, with an average high of 28.3°C (82.9°F). In August, the heat index is evaluated at a tropical 33°C (91.4°F). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Walahanduwa, Sri Lanka, with an average temperature fluctuating between 28.3°C (82.9°F) and 25.8°C (78.4°F). August and September are characterised by lowest temperatures, with an average high of 28.3°C (82.9°F). The heat index value for September is evaluated at a tropical 33°C (91.4°F). Weather in September »Weather in October
October, like September, in Walahanduwa, Sri Lanka, is another warm autumn month, with temperature in the range of an average high of 28.8°C (83.8°F) and an average low of 25.9°C (78.6°F). October's commencement is accompanied by an average high-temperature of a still moderately hot 28.8°C (83.8°F), diverging marginally from September's 28.3°C (82.9°F). Weather in October »Weather in November
The last month of the autumn, November, is another warm month in Walahanduwa, Sri Lanka, with an average temperature varying between 25.3°C (77.5°F) and 29.2°C (84.6°F). November's arrival brings an average high-temperature of a still moderately hot 29.2°C (84.6°F), demonstrating subtle variation from the preceding month. Weather in November »Weather in December
The first month of the winter, December, is also a moderately hot month in Walahanduwa, Sri Lanka, with an average temperature ranging between min 24.8°C (76.6°F) and max 28.9°C (84°F). As November transitions into December, the average high-temperature rests at a still moderately hot 28.9°C (84°F), maintaining a close resemblance to the previous month. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Walahanduwa, Sri Lanka
The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).
Average pressure
Walahanduwa, Sri Lanka
- Average pressure in January:
1011.4mbar - Average pressure in February:
1011.1mbar - Average pressure in March:
1010.8mbar - Average pressure in April:
1009.9mbar - Average pressure in May:
1008.9mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.2mbar - Average pressure in August:
1009.6mbar - Average pressure in September:
1010.2mbar - Average pressure in October:
1010.2mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1010.2mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).
Average wind speed
Walahanduwa, Sri Lanka
- Average wind speed in January:
7.8km/h - Average wind speed in February:
8km/h - Average wind speed in March:
8.7km/h - Average wind speed in April:
10km/h - Average wind speed in May:
16.3km/h - Average wind speed in June:
20.2km/h
- Average wind speed in July:
19.9km/h - Average wind speed in August:
19.5km/h - Average wind speed in September:
17.3km/h - Average wind speed in October:
13.5km/h - Average wind speed in November:
9.8km/h - Average wind speed in December:
9.4km/h
The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).
Average humidity
Walahanduwa, Sri Lanka
The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).
Average rainfall
Walahanduwa, Sri Lanka
- Average rainfall in January:
38mm - Average rainfall in February:
50mm - Average rainfall in March:
68mm - Average rainfall in April:
134mm - Average rainfall in May:
302mm - Average rainfall in June:
250mm
- Average rainfall in July:
188mm - Average rainfall in August:
235mm - Average rainfall in September:
222mm - Average rainfall in October:
194mm - Average rainfall in November:
179mm - Average rainfall in December:
114mm
The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days
Walahanduwa, Sri Lanka
- Average rainfall days in January:
14.8 days - Average rainfall days in February:
16.3 days - Average rainfall days in March:
21.3 days - Average rainfall days in April:
26.2 days - Average rainfall days in May:
27.7 days - Average rainfall days in June:
28 days
- Average rainfall days in July:
25.7 days - Average rainfall days in August:
27.7 days - Average rainfall days in September:
24.5 days - Average rainfall days in October:
26.3 days - Average rainfall days in November:
26.3 days - Average rainfall days in December:
22.1 days
The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).
Average daylight / Average sunshine
Walahanduwa, Sri Lanka
- Average daylight in January:
11h and 48min - Average daylight in February:
11h and 54min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 18min - Average daylight in May:
12h and 24min - Average daylight in June:
12h and 30min
- Average daylight in July:
12h and 24min - Average daylight in August:
12h and 18min - Average daylight in September:
12h and 12min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 54min - Average daylight in December:
11h and 48min
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 48min).
- Average sunshine in January:
9h and 0min - Average sunshine in February:
9h and 0min - Average sunshine in March:
9h and 6min - Average sunshine in April:
9h and 18min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
8h and 18min - Average sunshine in August:
8h and 6min - Average sunshine in September:
8h and 30min - Average sunshine in October:
8h and 6min - Average sunshine in November:
7h and 12min - Average sunshine in December:
7h and 0min
The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days
Walahanduwa, Sri Lanka
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
9.3 days - Average sunshine days in March:
6.9 days - Average sunshine days in April:
1.5 days - Average sunshine days in May:
1.4 days - Average sunshine days in June:
1 days
- Average sunshine days in July:
3.3 days - Average sunshine days in August:
2.3 days - Average sunshine days in September:
2.4 days - Average sunshine days in October:
1.7 days - Average sunshine days in November:
2.4 days - Average sunshine days in December:
6.4 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).
Average UV index
Walahanduwa, Sri Lanka
The months with the highest UV index are January, February, March, April, June, July, August, October, November and December (UV index 7).
The months with the lowest UV index are May and September (UV index 6).
Average cloud cover
Walahanduwa, Sri Lanka
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).
Average visibility
Walahanduwa, Sri Lanka
The months with the highest visibility are January, February, March, April, June and December (10km).
The months with the lowest visibility are May, July, August, September, October and November (9km).
