Climate and monthly weather forecastBandarawatta, Sri Lanka
Climate and monthly weather forecast
Weather in January
January is a hot winter month in Bandarawatta, Sri Lanka, with an average temperature fluctuating between 22.8°C (73°F) and 30.8°C (87.4°F). The onset of January marks an average high-temperature of a tropical 30.8°C (87.4°F), hardly differing from December's 29.9°C (85.8°F). Weather in January »Weather in February
The last month of the winter, February, is another tropical month in Bandarawatta, Sri Lanka, with temperature in the range of an average high of 31.7°C (89.1°F) and an average low of 23.1°C (73.6°F). The transition from January to February brings an average high-temperature of a still hot 31.7°C (89.1°F), barely different from January's 30.8°C (87.4°F). Weather in February »Weather in March
The first month of the spring, March, is still a hot month in Bandarawatta, Sri Lanka, with an average temperature fluctuating between 24.5°C (76.1°F) and 32.1°C (89.8°F). The warmest period is March, when temperatures fluctuate between an average high of 32.1°C (89.8°F) and a low of 24.5°C (76.1°F). In March, the heat index is computed to be an extremely hot 43°C (109.4°F). Weather in March »Weather in April
April, the same as March, in Bandarawatta, Sri Lanka, is another hot spring month, with an average temperature fluctuating between 32°C (89.6°F) and 26°C (78.8°F). Bandarawatta's weather, upon April's arrival, documents an average high-temperature of a still hot 32°C (89.6°F), nearly identical to the prior month. Weather in April »Weather in May
May, the last month of the spring in Bandarawatta, is another hot month, with an average temperature varying between 26.4°C (79.5°F) and 30.8°C (87.4°F). May's advent denotes a minor fluctuation in the average high-temperature to a still hot 30.8°C (87.4°F) from April's 32°C (89.6°F). Weather in May »Weather in June
June, the first month of the summer in Bandarawatta, is still a warm month, with temperature in the range of an average high of 29.6°C (85.3°F) and an average low of 25.9°C (78.6°F). As May turns into June, the average high-temperatures rest at a moderately hot 29.6°C (85.3°F), showing a minor variation from the prior month. Weather in June »Weather in July
July, like June, in Bandarawatta, Sri Lanka, is another warm summer month, with temperature in the range of an average low of 25.5°C (77.9°F) and an average high of 29.2°C (84.6°F). The month of July sees the lowest average temperatures, reaching 29.2°C (84.6°F) at the peak and 25.5°C (77.9°F) at the low. During July, the heat index is computed to be a sweltering 36°C (96.8°F). Weather in July »Weather in August
August, the last month of the summer in Bandarawatta, is also a moderately hot month, with an average temperature ranging between min 25.4°C (77.7°F) and max 29.3°C (84.7°F). Transitioning from July to August, Bandarawatta observes an average high-temperature of a still moderately hot 29.3°C (84.7°F), differing subtly from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Bandarawatta, is also a moderately hot month, with an average temperature fluctuating between 25.2°C (77.4°F) and 29.4°C (84.9°F). September registers an average high-temperature of a still warm 29.4°C (84.9°F), slightly varied from August's 29.3°C (84.7°F). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Bandarawatta, Sri Lanka, with an average temperature varying between 25.1°C (77.2°F) and 29.9°C (85.8°F). As September turns into October, the average high-temperatures rest at a still warm 29.9°C (85.8°F), showing a minor variation from the prior month. Weather in October »Weather in November
November, the last month of the autumn in Bandarawatta, is a tropical month, with an average temperature varying between 30.2°C (86.4°F) and 24.5°C (76.1°F). Bandarawatta marks the arrival of November with an average high-temperature of a hot 30.2°C (86.4°F), hardly different from October's 29.9°C (85.8°F). Weather in November »Weather in December
December, the first month of the winter in Bandarawatta, is still a warm month, with an average temperature fluctuating between 23.7°C (74.7°F) and 29.9°C (85.8°F). The advent of December reveals an average high-temperature of a warm 29.9°C (85.8°F), showing minimal difference from the prior 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
January and February, with an average relative humidity of 73%, are the least humid months.
January is the month with the least rainfall in Bandarawatta, Sri Lanka. Rain falls for 9.7 days and accumulates 29mm (1.14") of precipitation.
Throughout the year, in Bandarawatta, there are 265.8 rainfall days, and 1783mm (70.2") of precipitation is accumulated.
January through April, with an average of 9.2h of sunshine, are months with the most sunshine in Bandarawatta, Sri Lanka.
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Bandarawatta, Sri Lanka.
With average temperatures fluctuating between a high of 32.1°C (89.8°F) and a low of 24.5°C (76.1°F), March stands out as the warmest month in Bandarawatta, Sri Lanka.
May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index in Bandarawatta, Sri Lanka.
The months with the highest humidity in Bandarawatta, Sri Lanka, are June through August, with an average relative humidity of 82%.
June is the month with the most rainfall in Bandarawatta, Sri Lanka. Rain falls for 27.6 days and accumulates 231mm (9.09") of precipitation.
June has the longest days of the year, with an average of 12h and 30min of daylight.
July, having an average high-temperature of 29.2°C (84.6°F) and an average low-temperature of 25.5°C (77.9°F), is the coldest month.
The month with the least sunshine is November, with an average of 6.6h of sunshine.
With an average of 11h and 42min of daylight, December has the shortest days of the year in Bandarawatta, Sri Lanka.
Bandarawatta, Sri Lanka, does not utilize Daylight Saving Time (DST). +0530 timezone is used over the entire year.
Average temperature
Bandarawatta, Sri Lanka
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).
Average pressure
Bandarawatta, Sri Lanka
- Average pressure in January:
1011.7mbar - Average pressure in February:
1011.3mbar - Average pressure in March:
1010.7mbar - Average pressure in April:
1009.6mbar - Average pressure in May:
1008.4mbar - Average pressure in June:
1008.4mbar
- Average pressure in July:
1008.5mbar - Average pressure in August:
1008.8mbar - Average pressure in September:
1009.5mbar - Average pressure in October:
1009.9mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1010.5mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).
Average wind speed
Bandarawatta, Sri Lanka
- Average wind speed in January:
16.2km/h - Average wind speed in February:
12.9km/h - Average wind speed in March:
9.1km/h - Average wind speed in April:
10km/h - Average wind speed in May:
15.5km/h - Average wind speed in June:
18.3km/h
- Average wind speed in July:
17.1km/h - Average wind speed in August:
17km/h - Average wind speed in September:
16km/h - Average wind speed in October:
11.8km/h - Average wind speed in November:
10.3km/h - Average wind speed in December:
14.1km/h
The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).
Average humidity
Bandarawatta, Sri Lanka
The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).
Average rainfall
Bandarawatta, Sri Lanka
- Average rainfall in January:
29mm - Average rainfall in February:
36mm - Average rainfall in March:
55mm - Average rainfall in April:
112mm - Average rainfall in May:
204mm - Average rainfall in June:
231mm
- Average rainfall in July:
177mm - Average rainfall in August:
210mm - Average rainfall in September:
192mm - Average rainfall in October:
224mm - Average rainfall in November:
174mm - Average rainfall in December:
139mm
The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).
Average rainfall days
Bandarawatta, Sri Lanka
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
10.2 days - Average rainfall days in March:
18.2 days - Average rainfall days in April:
23.4 days - Average rainfall days in May:
26.3 days - Average rainfall days in June:
27.6 days
- Average rainfall days in July:
27.7 days - Average rainfall days in August:
28.4 days - Average rainfall days in September:
24.8 days - Average rainfall days in October:
25.9 days - Average rainfall days in November:
23.3 days - Average rainfall days in December:
20.3 days
The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).
Average daylight / Average sunshine
Bandarawatta, 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 12min - Average sunshine in March:
9h and 12min - Average sunshine in April:
9h and 12min - Average sunshine in May:
8h and 48min - Average sunshine in June:
8h and 12min
- Average sunshine in July:
8h and 0min - Average sunshine in August:
7h and 30min - Average sunshine in September:
7h and 30min - Average sunshine in October:
7h and 48min - Average sunshine in November:
6h and 36min - Average sunshine in December:
7h and 0min
The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days
Bandarawatta, Sri Lanka
- Average sunshine days in January:
20 days - Average sunshine days in February:
16.5 days - Average sunshine days in March:
10.4 days - Average sunshine days in April:
4.6 days - Average sunshine days in May:
3.6 days - Average sunshine days in June:
1.7 days
- Average sunshine days in July:
2.1 days - Average sunshine days in August:
1.2 days - Average sunshine days in September:
2.8 days - Average sunshine days in October:
3.3 days - Average sunshine days in November:
6.3 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).
Average UV index
Bandarawatta, 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
Bandarawatta, 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 21).
Average visibility
Bandarawatta, Sri Lanka
The months with the highest visibility are January, February, March, April, June, July and December (10km).
The months with the lowest visibility are May, August, September, October and November (9km).
