Climate and monthly weather forecastDediyawala, Sri Lanka
Climate and monthly weather forecast
Weather in January
January is a hot winter month in Dediyawala, Sri Lanka, with an average temperature ranging between max 30.3°C (86.5°F) and min 23.4°C (74.1°F). The beginning of January records an average high-temperature of a tropical 30.3°C (86.5°F), almost echoing the conditions of the previous month. Weather in January »Weather in February
February, the last month of the winter in Dediyawala, is another tropical month, with an average temperature fluctuating between 23.5°C (74.3°F) and 30.9°C (87.6°F). February reports an average high-temperature of a still tropical 30.9°C (87.6°F), slightly varied from January's 30.3°C (86.5°F). Weather in February »Weather in March
The first month of the spring, March, is still a hot month in Dediyawala, Sri Lanka, with an average temperature varying between 25°C (77°F) and 31.3°C (88.3°F). During March and April, Dediyawala experiences its peak temperatures, averaging a high-temperature of 31.3°C (88.3°F). For March, the heat index is computed to be an extremely hot 41°C (105.8°F). Weather in March »Weather in April
April, like March, is another hot spring month in Dediyawala, Sri Lanka, with an average temperature fluctuating between 26°C (78.8°F) and 31.3°C (88.3°F). In Dediyawala, the warmest months are March and April, registering an average high-temperature of 31.3°C (88.3°F). Throughout April, the heat index is computed to be an extremely hot 41°C (105.8°F). Weather in April »Weather in May
The last month of the spring, May, is another hot month in Dediyawala, Sri Lanka, with an average temperature ranging between max 30.2°C (86.4°F) and min 26.3°C (79.3°F). May welcomes an average high-temperature of a still tropical 30.2°C (86.4°F), not much different from the preceding month. Weather in May »Weather in June
June, the first month of the summer in Dediyawala, is also a moderately hot month, with an average temperature ranging between max 29.2°C (84.6°F) and min 26.1°C (79°F). Dediyawala experiences an average high-temperature of a warm 29.2°C (84.6°F) in June, marking an insignificant shift from 30.2°C (86.4°F) in May. Weather in June »Weather in July
July, like June, in Dediyawala, Sri Lanka, is another warm summer month, with temperature in the range of an average high of 28.7°C (83.7°F) and an average low of 25.6°C (78.1°F). Dediyawala in July witnesses an average high-temperature of a still warm 28.7°C (83.7°F), indicating a slight variation from June's 29.2°C (84.6°F). Weather in July »Weather in August
August, the last month of the summer in Dediyawala, is another warm month, with an average temperature varying between 25.5°C (77.9°F) and 28.6°C (83.5°F). August proves to be the coldest month, recording an average maximum temperature of 28.6°C (83.5°F) and a minimum temperature of 25.5°C (77.9°F). The heat index value for August 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 Dediyawala, is still a warm month, with an average temperature fluctuating between 25.2°C (77.4°F) and 28.8°C (83.8°F). With the advent of September, Dediyawala's high-temperatures adjust to a still moderately hot 28.8°C (83.8°F), closely aligning with the preceding month. Weather in September »Weather in October
October, like September, in Dediyawala, Sri Lanka, is another warm autumn month, with an average temperature varying between 25.5°C (77.9°F) and 29.6°C (85.3°F). The transition into October marks the average high-temperature at a still moderately hot 29.6°C (85.3°F), differing minimally from September's 28.8°C (83.8°F). Weather in October »Weather in November
The last month of the autumn, November, is also a moderately hot month in Dediyawala, Sri Lanka, with an average temperature varying between 29.8°C (85.6°F) and 24.8°C (76.6°F). The average high-temperature during November registers at a still moderately hot 29.8°C (85.6°F), maintaining a close resemblance to the previous month. Weather in November »Weather in December
December, the first month of the winter in Dediyawala, is also a moderately hot month, with an average temperature fluctuating between 24.4°C (75.9°F) and 29.7°C (85.5°F). December's weather displays an average high-temperature of a still moderately hot 29.7°C (85.5°F), slightly varied from November's 29.8°C (85.6°F). 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
The months with the lowest humidity are January and February, with an average relative humidity of 75%.
January is the month with the least rainfall. Rain falls for 8.9 days and accumulates 25mm (0.98") of precipitation.
Throughout the year, in Dediyawala, Sri Lanka, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.
With an average of 9.2h of sunshine, January has the most sunshine of the year in Dediyawala.
January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index.
During March and April, Dediyawala experiences its peak temperatures, averaging a high-temperature of 31.3°C (88.3°F).
The months with the lowest UV index are May, June and August, with an average maximum UV index of 6.
June through August, with an average relative humidity of 83%, are most humid months.
June is the month with the most rainfall in Dediyawala. Rain falls for 29.2 days and accumulates 350mm (13.78") of precipitation.
With an average of 12h and 30min of daylight, June has the longest days of the year in Dediyawala, Sri Lanka.
During the coldest month in Dediyawala, August, temperatures average a high of 28.6°C (83.5°F) and a low of 25.5°C (77.9°F).
November has the least sunshine of the year in Dediyawala, Sri Lanka, with an average of 6.8h of sunshine.
The month with the shortest days is December, with an average of 11h and 42min of daylight.
Dediyawala does not observe Daylight Saving Time (DST). +0530 timezone is used throughout the entire year.
Average temperature
Dediyawala, 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
Dediyawala, 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
Dediyawala, 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
Dediyawala, 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
Dediyawala, 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
Dediyawala, 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
Dediyawala, 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 30min - 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 48min - Average daylight in December:
11h and 42min
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 12min - 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 42min - Average sunshine in June:
8h and 12min
- Average sunshine in July:
7h and 48min - Average sunshine in August:
7h and 12min - Average sunshine in September:
7h and 36min - Average sunshine in October:
7h and 54min - Average sunshine in November:
6h and 48min - Average sunshine in December:
7h and 6min
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
Dediyawala, 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
Dediyawala, 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
Dediyawala, 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
Dediyawala, 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).
