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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, the same as December, is a moderately hot winter month in Deniyaya, Sri Lanka, with an average temperature fluctuating between 29.3°C (84.7°F) and 18.8°C (65.8°F). Deniyaya sees the arrival of January with an average high-temperature of a still moderately hot 29.3°C (84.7°F), indicating a subtle variation from December. Weather in January »
Weather in February
February, the last month of the winter in Deniyaya, is a tropical month, with an average temperature ranging between max 30.7°C (87.3°F) and min 18.7°C (65.7°F). Deniyaya experiences a minor change to a tropical 30.7°C (87.3°F) in average high-temperature during February, closely reflecting January. Weather in February »
Weather in March
The first month of the spring, March, is still a tropical month in Deniyaya, Sri Lanka, with an average temperature varying between 19.7°C (67.5°F) and 31.1°C (88°F). March is the warmest month of the year, registering average temperatures as high as 31.1°C (88°F) and as low as 19.7°C (67.5°F). During March, the heat index is calculated to be a scorching 42°C (107.6°F). Weather in March »
Weather in April
April, like March, is another hot spring month in Deniyaya, Sri Lanka, with an average temperature varying between 30°C (86°F) and 21.1°C (70°F). With April's advent, Deniyaya sees an average high-temperature of a still tropical 30°C (86°F), subtly shifted from March's 31.1°C (88°F). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Deniyaya, Sri Lanka, with an average temperature fluctuating between 28.3°C (82.9°F) and 21.8°C (71.2°F). With the advent of May, Deniyaya's high-temperatures adjust to a moderately hot 28.3°C (82.9°F), closely aligning with the preceding month. Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Deniyaya, Sri Lanka, with temperature in the range of an average high of 27.3°C (81.1°F) and an average low of 21.8°C (71.2°F). In Deniyaya, the coldest period comes during June and July, when the average high-temperature touches 27.3°C (81.1°F). The heat index value during June is calculated to be a hot 31°C (87.8°F). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Deniyaya, Sri Lanka, with an average temperature fluctuating between 21.3°C (70.3°F) and 27.3°C (81.1°F). The yearly lowest temperatures occur in June and July, averaging a high-temperature of 27.3°C (81.1°F). July's mean heat index is calculated to be a tropical 31°C (87.8°F). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Deniyaya, Sri Lanka, with an average temperature ranging between max 27.5°C (81.5°F) and min 20.8°C (69.4°F). The average high-temperature for August is a still warm 27.5°C (81.5°F), closely aligning with the temperature of the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Deniyaya, is still a warm month, with an average temperature fluctuating between 27.5°C (81.5°F) and 20.9°C (69.6°F). Deniyaya, Sri Lanka, notes a minor change to an average high temperature of a still warm 27.5°C (81.5°F) in September, remaining consistent with August. Weather in September »
Weather in October
October, like September, in Deniyaya, Sri Lanka, is another warm autumn month, with an average temperature fluctuating between 20.8°C (69.4°F) and 28.5°C (83.3°F). Deniyaya starts October with an average high-temperature of a still warm 28.5°C (83.3°F), a minor shift from September's 27.5°C (81.5°F). Weather in October »
Weather in November
November, the last month of the autumn in Deniyaya, is also a moderately hot month, with an average temperature varying between 28.3°C (82.9°F) and 20.8°C (69.4°F). The transition into November marks the average high-temperature at a still warm 28.3°C (82.9°F), differing minimally from October's 28.5°C (83.3°F). Weather in November »
Weather in December
The first month of the winter, December, is also a moderately hot month in Deniyaya, Sri Lanka, with an average temperature fluctuating between 28.4°C (83.1°F) and 19.9°C (67.8°F). As Deniyaya, Sri Lanka, welcomes December, the average high-temperature is noted at a still warm 28.4°C (83.1°F), closely aligning with the preceding 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 are the least humid months in Deniyaya?
January and February, with an average relative humidity of 80%, are the least humid months.
What is the driest month in Deniyaya?
January is the month with the least rainfall in Deniyaya, Sri Lanka. Rain falls for 18.9 days and accumulates 85mm (3.35") of precipitation.
How much does it rain in Deniyaya?
In Deniyaya, Sri Lanka, during the entire year, the rain falls for 317.3 days and collects up to 2422mm (95.35") of precipitation.
What are the months with the highest UV index in Deniyaya?
January through August, November and December, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest in Deniyaya?
Deniyaya's March weather, marked by an average high temperature of 31.1°C (88°F) and an average low temperature of 19.7°C (67.5°F), is the warmest in the year.
What month has the most sunshine in Deniyaya?
With an average of 8.4h of sunshine, April has the most sunshine of the year in Deniyaya.
What are the most humid months in Deniyaya?
The months with the highest humidity in Deniyaya are May and June, with an average relative humidity of 88%.
What is the coldest month in Deniyaya?
In Deniyaya, the coldest period comes during June and July, when the average high-temperature touches 27.3°C (81.1°F).
When are the longest days in Deniyaya?
With an average of 12h and 30min of daylight, June has the longest days of the year in Deniyaya.
What are the months with the lowest UV index in Deniyaya?
September and October, with an average maximum UV index of 5, are months with the lowest UV index.
What is the wettest month in Deniyaya?
The month with the most rainfall in Deniyaya, Sri Lanka, is October, when the rain falls for 28.5 days and typically aggregates up to 357mm (14.06") of precipitation.
What is the month with the shortest days in Deniyaya?
With an average of 11h and 48min of daylight, December has the shortest days of the year.
Is there Daylight Saving Time (DST) in Deniyaya?
Deniyaya, Sri Lanka, does not observe Daylight Saving Time (DST). +0530 timezone is used throughout the entire year.
What is the month with the least sunshine in Deniyaya?
The month with the least sunshine is December, with an average of 6h of sunshine.
Average temperature
Deniyaya, Sri Lanka
The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°C).
The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.7°C).
Average pressure
Deniyaya, Sri Lanka
- Average pressure in January:
1011.6mbar - Average pressure in February:
1011.3mbar - Average pressure in March:
1010.8mbar - Average pressure in April:
1009.8mbar - 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:
1009.9mbar - 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 (1008.6mbar).
Average wind speed
Deniyaya, Sri Lanka
- Average wind speed in January:
4.2km/h - Average wind speed in February:
3.9km/h - Average wind speed in March:
3.9km/h - Average wind speed in April:
4.3km/h - Average wind speed in May:
6.5km/h - Average wind speed in June:
8.7km/h
- Average wind speed in July:
8.8km/h - Average wind speed in August:
8.4km/h - Average wind speed in September:
7.4km/h - Average wind speed in October:
5.8km/h - Average wind speed in November:
4.2km/h - Average wind speed in December:
4.3km/h
The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).
Average humidity
Deniyaya, Sri Lanka
The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).
Average rainfall
Deniyaya, Sri Lanka
- Average rainfall in January:
85mm - Average rainfall in February:
109mm - Average rainfall in March:
134mm - Average rainfall in April:
248mm - Average rainfall in May:
270mm - Average rainfall in June:
173mm
- Average rainfall in July:
162mm - Average rainfall in August:
184mm - Average rainfall in September:
178mm - Average rainfall in October:
357mm - Average rainfall in November:
313mm - Average rainfall in December:
209mm
The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days
Deniyaya, Sri Lanka
- Average rainfall days in January:
18.9 days - Average rainfall days in February:
19.8 days - Average rainfall days in March:
26.3 days - Average rainfall days in April:
29.4 days - Average rainfall days in May:
29.8 days - Average rainfall days in June:
28.1 days
- Average rainfall days in July:
28.8 days - Average rainfall days in August:
28.8 days - Average rainfall days in September:
25.8 days - Average rainfall days in October:
28.5 days - Average rainfall days in November:
27.5 days - Average rainfall days in December:
25.6 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is January (18.9 days).
Average daylight / Average sunshine
Deniyaya, 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 5min
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:
8h and 2min - Average sunshine in February:
8h and 2min - Average sunshine in March:
8h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
7h and 4min - Average sunshine in June:
7h and 1min
- Average sunshine in July:
7h and 1min - Average sunshine in August:
6h and 1min - Average sunshine in September:
7h and 3min - Average sunshine in October:
7h and 2min - Average sunshine in November:
6h and 2min - Average sunshine in December:
6h and 0min
The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days
Deniyaya, Sri Lanka
- Average sunshine days in January:
9.2 days - Average sunshine days in February:
6.8 days - Average sunshine days in March:
2.8 days - Average sunshine days in April:
0.2 days - Average sunshine days in May:
0.8 days - Average sunshine days in June:
0.6 days
- Average sunshine days in July:
1 days - Average sunshine days in August:
0.8 days - Average sunshine days in September:
1.4 days - Average sunshine days in October:
1.1 days - Average sunshine days in November:
1.8 days - Average sunshine days in December:
3.6 days
The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).
Average UV index
Deniyaya, Sri Lanka
The months with the highest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
The months with the lowest UV index are September and October (UV index 5).
Average cloud cover
Deniyaya, Sri Lanka
The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).
Average visibility
Deniyaya, Sri Lanka
The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).
