Climate and monthly weather forecastRattota, Sri Lanka
Climate and monthly weather forecast
Weather in January
January, like December, in Rattota, Sri Lanka, is a moderately hot winter month, with an average temperature fluctuating between 29.3°C (84.7°F) and 19°C (66.2°F). Rattota experiences a recorded average high-temperature of a still warm 29.3°C (84.7°F) in January, closely aligned with December's 28.6°C (83.5°F). Weather in January »Weather in February
The last month of the winter, February, is a hot month in Rattota, Sri Lanka, with an average temperature varying between 18.9°C (66°F) and 30.7°C (87.3°F). Rattota notes an average high-temperature of a hot 30.7°C (87.3°F) in February, displaying minor variation from January. Weather in February »Weather in March
The first month of the spring, March, is still a hot month in Rattota, Sri Lanka, with an average temperature varying between 32.8°C (91°F) and 19.9°C (67.8°F). Rattota sees the arrival of March with an average high-temperature of a still hot 32.8°C (91°F), indicating a subtle variation from February. Weather in March »Weather in April
April, the same as March, in Rattota, Sri Lanka, is a hot spring month, with an average temperature fluctuating between 32.9°C (91.2°F) and 22°C (71.6°F). The warmest period tends to be April, when average temperatures fluctuate between a high of 32.9°C (91.2°F) and a low of 22°C (71.6°F). The heat index value during April is appraised at a burning hot 46°C (114.8°F). Weather in April »Weather in May
May, the last month of the spring in Rattota, is another hot month, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 31.8°C (89.2°F). The ushering in of May brings an average high-temperature of a still hot 31.8°C (89.2°F), closely mirroring the 32.9°C (91.2°F) of April. Weather in May »Weather in June
The first month of the summer, June, is still a tropical month in Rattota, Sri Lanka, with an average temperature fluctuating between 22.8°C (73°F) and 31°C (87.8°F). Rattota experiences a transition to a still tropical 31°C (87.8°F) in average high-temperatures with the arrival of June, not greatly differing from May's 31.8°C (89.2°F). Weather in June »Weather in July
July, like June, is a hot summer month in Rattota, Sri Lanka, with an average temperature varying between 30.7°C (87.3°F) and 22.5°C (72.5°F). The transition into July notes an average high-temperature of a still tropical 30.7°C (87.3°F), revealing a mild distinction from the 31°C (87.8°F) in June. Weather in July »Weather in August
The last month of the summer, August, is another hot month in Rattota, Sri Lanka, with temperature in the range of an average low of 22.3°C (72.1°F) and an average high of 30.8°C (87.4°F). August's onset records a minor alteration in the average high-temperature to a still hot 30.8°C (87.4°F) from July's 30.7°C (87.3°F). Weather in August »Weather in September
September, the first month of the autumn in Rattota, is still a hot month, with an average temperature ranging between min 22.3°C (72.1°F) and max 31.2°C (88.2°F). As Rattota welcomes September, the average high-temperature records at a still hot 31.2°C (88.2°F), marking an insignificant deviation from the prior month. Weather in September »Weather in October
October, the same as September, in Rattota, Sri Lanka, is a hot autumn month, with an average temperature varying between 21.8°C (71.2°F) and 30.9°C (87.6°F). The average high-temperature is a still tropical 30.9°C (87.6°F) in October, hardly different from the 31.2°C (88.2°F) recorded in September. Weather in October »Weather in November
The last month of the autumn, November, is another warm month in Rattota, Sri Lanka, with an average temperature fluctuating between 29.6°C (85.3°F) and 21°C (69.8°F). November registers an average high-temperature of a warm 29.6°C (85.3°F), slightly varied from October's 30.9°C (87.6°F). Weather in November »Weather in December
The first month of the winter, December, is also a moderately hot month in Rattota, Sri Lanka, with temperature in the range of an average high of 28.6°C (83.5°F) and an average low of 20.4°C (68.7°F). Rattota records the coldest temperatures in December, averaging a high of 28.6°C (83.5°F) and a low of 20.4°C (68.7°F). In December, the heat index is appraised at a hot 34°C (93.2°F). Weather in December »Updated: Jun 4, 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
In Rattota, during the entire year, the rain falls for 217.7 days and collects up to 1165mm (45.87") of precipitation.
January, February, October through December, with an average maximum UV index of 6, are months with the lowest UV index.
The months with the lowest humidity are March and September, with an average relative humidity of 72%.
The months with the highest UV index are March through September, with an average maximum UV index of 7.
Rattota witnesses the warmest weather in April, with temperatures averaging a high of 32.9°C (91.2°F) and a low of 22°C (71.6°F).
June is the month with the least rainfall. Rain falls for 14.7 days and accumulates 29mm (1.14") of precipitation.
June has the longest days of the year, with an average of 12h and 36min of daylight.
With an average of 11h of sunshine, June has the most sunshine of the year.
The month with the most rainfall is October, when the rain falls for 22.4 days and typically aggregates up to 267mm (10.51") of precipitation.
Rattota reaches its average lowest temperatures in December, measuring 28.6°C (83.5°F) at the peak and 20.4°C (68.7°F) at the lowest.
The most humid month is December, with an average relative humidity of 83%.
The month with the shortest days is December, with an average of 11h and 42min of daylight.
Rattota does not utilize Daylight Saving Time (DST). +0530 timezone is used over the entire year.
With an average of 5.7h of sunshine, December has the least sunshine of the year.
Average temperature
Rattota, Sri Lanka
The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).
The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).
Average pressure
Rattota, Sri Lanka
- Average pressure in January:
1011.9mbar - Average pressure in February:
1011.5mbar - Average pressure in March:
1010.8mbar - Average pressure in April:
1009.5mbar - Average pressure in May:
1008.1mbar - Average pressure in June:
1007.9mbar
- Average pressure in July:
1008mbar - Average pressure in August:
1008.4mbar - Average pressure in September:
1009.2mbar - Average pressure in October:
1009.7mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1010.5mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).
Average wind speed
Rattota, Sri Lanka
- Average wind speed in January:
9.1km/h - Average wind speed in February:
8.6km/h - Average wind speed in March:
6.1km/h - Average wind speed in April:
5.6km/h - Average wind speed in May:
11.2km/h - Average wind speed in June:
16.5km/h
- Average wind speed in July:
15.6km/h - Average wind speed in August:
14.2km/h - Average wind speed in September:
13.2km/h - Average wind speed in October:
8.2km/h - Average wind speed in November:
6.1km/h - Average wind speed in December:
7.8km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity
Rattota, Sri Lanka
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are March and September (72%).
Average rainfall
Rattota, Sri Lanka
- Average rainfall in January:
34mm - Average rainfall in February:
54mm - Average rainfall in March:
54mm - Average rainfall in April:
120mm - Average rainfall in May:
117mm - Average rainfall in June:
29mm
The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days
Rattota, Sri Lanka
- Average rainfall days in January:
14 days - Average rainfall days in February:
11.8 days - Average rainfall days in March:
16.1 days - Average rainfall days in April:
24.7 days - Average rainfall days in May:
21.6 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
16.6 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
15.2 days - Average rainfall days in October:
22.4 days - Average rainfall days in November:
23.9 days - Average rainfall days in December:
20.9 days
The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).
Average daylight / Average sunshine
Rattota, Sri Lanka
- Average daylight in January:
11h and 42min - 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 30min - Average daylight in June:
12h and 36min
- Average daylight in July:
12h and 30min - Average daylight in August:
12h and 24min - 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 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January:
8h and 24min - Average sunshine in February:
8h and 42min - Average sunshine in March:
9h and 0min - Average sunshine in April:
9h and 48min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
8h and 54min - Average sunshine in September:
10h and 30min - Average sunshine in October:
8h and 6min - Average sunshine in November:
6h and 42min - Average sunshine in December:
5h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Rattota, Sri Lanka
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
4 days - Average sunshine days in May:
5.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
10.5 days - Average sunshine days in October:
7.1 days - Average sunshine days in November:
5.2 days - Average sunshine days in December:
8.2 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).
Average UV index
Rattota, Sri Lanka
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover
Rattota, Sri Lanka
The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).
Average visibility
Rattota, Sri Lanka
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
