Climate and monthly weather forecastMiriswatta, Sri Lanka
Climate and monthly weather forecast
Weather in January
January is a tropical winter month in Miriswatta, Sri Lanka, with an average temperature ranging between min 23.1°C (73.6°F) and max 30.8°C (87.4°F). As January unfolds, the average high-temperature reaches a hot 30.8°C (87.4°F), hinting at a slight fluctuation from the previous month. Weather in January »Weather in February
The last month of the winter, February, is also a hot month in Miriswatta, Sri Lanka, with an average temperature fluctuating between 31.4°C (88.5°F) and 23.3°C (73.9°F). With the advent of February, Miriswatta experiences an average high-temperature of a still hot 31.4°C (88.5°F), mirroring a close resemblance to the previous month. Weather in February »Weather in March
March, the first month of the spring in Miriswatta, is still a tropical month, with an average temperature varying between 24.3°C (75.7°F) and 31.8°C (89.2°F). Miriswatta's highest average temperatures are recorded in March and April, reaching a high of 31.8°C (89.2°F). March's mean heat index is estimated at an extremely hot 42°C (107.6°F). Weather in March »Weather in April
April, the same as March, in Miriswatta, Sri Lanka, is a hot spring month, with an average temperature ranging between max 31.8°C (89.2°F) and min 25.8°C (78.4°F). Miriswatta's warmest period falls in March and April, when the average high-temperatures ascend to 31.8°C (89.2°F). In April, the heat index is estimated at a scorching 42°C (107.6°F). Weather in April »Weather in May
May, the last month of the spring in Miriswatta, is also a hot month, with an average temperature fluctuating between 26.3°C (79.3°F) and 30.6°C (87.1°F). May's arrival registers an average high-temperature of a still tropical 30.6°C (87.1°F), closely aligning with the temperature of the previous month. Weather in May »Weather in June
June, the first month of the summer in Miriswatta, is also a moderately hot month, with an average temperature varying between 25.8°C (78.4°F) and 29.3°C (84.7°F). June's advent presents an average high-temperature of a warm 29.3°C (84.7°F), indicating a slight variation from the conditions of the previous month. Weather in June »Weather in July
July, like June, in Miriswatta, Sri Lanka, is another warm summer month, with an average temperature ranging between min 25.3°C (77.5°F) and max 28.9°C (84°F). The lowest level of Miriswatta's temperatures is noted during July and August, averaging a high-temperature of 28.9°C (84°F). July's average heat index is estimated at a torrid 35°C (95°F). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Miriswatta, Sri Lanka, with an average temperature varying between 28.9°C (84°F) and 25.2°C (77.4°F). During July and August, Miriswatta experiences its lowest temperatures, averaging a high-temperature of 28.9°C (84°F). The heat index in August is estimated at a sweltering 35°C (95°F). Weather in August »Weather in September
September, the first month of the autumn in Miriswatta, is also a moderately hot month, with an average temperature varying between 24.9°C (76.8°F) and 29.1°C (84.4°F). As September unfolds, the average high-temperature reaches a still moderately hot 29.1°C (84.4°F), hinting at a slight fluctuation from the previous month. Weather in September »Weather in October
October is a hot autumn month in Miriswatta, Sri Lanka, with temperature in the range of an average low of 25°C (77°F) and an average high of 30°C (86°F). As September transitions into October, the average high-temperature rests at a hot 30°C (86°F), maintaining a close resemblance to the previous month. Weather in October »Weather in November
November, the last month of the autumn in Miriswatta, is another hot month, with an average temperature varying between 24.5°C (76.1°F) and 30.1°C (86.2°F). Miriswatta notes an average high-temperature of a still hot 30.1°C (86.2°F) in November, hardly diverging from October. Weather in November »Weather in December
The first month of the winter, December, is still a warm month in Miriswatta, Sri Lanka, with an average temperature fluctuating between 23.7°C (74.7°F) and 29.9°C (85.8°F). The transition into December notes an average high-temperature of a moderately hot 29.9°C (85.8°F), revealing a mild distinction from the 30.1°C (86.2°F) in November. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Miriswatta, Sri Lanka
The warmest months (with the highest average high temperature) are March and April (31.8°C).
The months with the lowest average high temperature are July and August (28.9°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 (23.1°C).
Average pressure
Miriswatta, 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:
1008.7mbar - Average pressure in August:
1009.1mbar - Average pressure in September:
1009.8mbar - Average pressure in October:
1009.9mbar - 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
Miriswatta, Sri Lanka
- Average wind speed in January:
12.8km/h - Average wind speed in February:
9.9km/h - Average wind speed in March:
8km/h - Average wind speed in April:
8.6km/h - Average wind speed in May:
12.9km/h - Average wind speed in June:
15.1km/h
- Average wind speed in July:
14.1km/h - Average wind speed in August:
14.2km/h - Average wind speed in September:
13.2km/h - Average wind speed in October:
10.2km/h - Average wind speed in November:
8.9km/h - Average wind speed in December:
11.5km/h
The windiest month (with the highest average wind speed) is June (15.1km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).
Average humidity
Miriswatta, 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 (74%).
Average rainfall
Miriswatta, Sri Lanka
- Average rainfall in January:
40mm - Average rainfall in February:
47mm - Average rainfall in March:
66mm - Average rainfall in April:
137mm - Average rainfall in May:
306mm - Average rainfall in June:
341mm
- Average rainfall in July:
256mm - Average rainfall in August:
287mm - Average rainfall in September:
206mm - Average rainfall in October:
237mm - Average rainfall in November:
191mm - Average rainfall in December:
148mm
The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days
Miriswatta, Sri Lanka
- Average rainfall days in January:
11.6 days - Average rainfall days in February:
13.8 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
25.4 days - Average rainfall days in May:
28.8 days - Average rainfall days in June:
29.3 days
- Average rainfall days in July:
29.8 days - Average rainfall days in August:
30.2 days - Average rainfall days in September:
26.9 days - Average rainfall days in October:
27 days - Average rainfall days in November:
25.7 days - Average rainfall days in December:
21.1 days
The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (11.6 days).
Average daylight / Average sunshine
Miriswatta, 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 6min - Average sunshine in February:
9h and 0min - Average sunshine in March:
9h and 0min - Average sunshine in April:
8h and 54min - Average sunshine in May:
8h and 36min - Average sunshine in June:
8h and 0min
- Average sunshine in July:
7h and 36min - Average sunshine in August:
7h and 0min - Average sunshine in September:
7h and 24min - Average sunshine in October:
7h and 42min - Average sunshine in November:
6h and 42min - Average sunshine in December:
6h and 54min
The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days
Miriswatta, Sri Lanka
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
8.2 days - Average sunshine days in April:
2.6 days - Average sunshine days in May:
1.3 days - Average sunshine days in June:
0.3 days
- Average sunshine days in July:
0.4 days - Average sunshine days in August:
0.3 days - Average sunshine days in September:
1.5 days - Average sunshine days in October:
1.7 days - Average sunshine days in November:
3.6 days - Average sunshine days in December:
8.3 days
The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are June and August (0.3 days).
Average UV index
Miriswatta, 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
Miriswatta, Sri Lanka
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility
Miriswatta, Sri Lanka
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).





