Climate and monthly weather forecastPeriyamulla, Sri Lanka
Climate and monthly weather forecast
Weather in January
January is a hot winter month in Periyamulla, Sri Lanka, with an average temperature fluctuating between 30.8°C (87.4°F) and 22.8°C (73°F). January's beginning signals an average high-temperature of a hot 30.8°C (87.4°F), barely different 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 Periyamulla, Sri Lanka, with an average temperature fluctuating between 31.7°C (89.1°F) and 23.1°C (73.6°F). Shifting into February, Periyamulla records an average high-temperature of a still tropical 31.7°C (89.1°F), presenting minor fluctuations compared to the previous month. Weather in February »Weather in March
March, the first month of the spring in Periyamulla, is still a tropical month, with an average temperature ranging between max 32.1°C (89.8°F) and min 24.5°C (76.1°F). The warmest month is March, with an average high-temperature of 32.1°C (89.8°F) and an average low-temperature of 24.5°C (76.1°F). In March, the heat index is estimated at a blistering 43°C (109.4°F). Weather in March »Weather in April
April, the same as March, in Periyamulla, Sri Lanka, is a hot spring month, with an average temperature varying between 26°C (78.8°F) and 32°C (89.6°F). Periyamulla experiences a subtle adjustment in high-temperatures to a still tropical 32°C (89.6°F) with the onset of April, maintaining near parity with March's 32.1°C (89.8°F). Weather in April »Weather in May
May, the last month of the spring in Periyamulla, is another tropical month, with an average temperature varying between 30.8°C (87.4°F) and 26.4°C (79.5°F). The advent of May brings an average high-temperature of a still tropical 30.8°C (87.4°F), exhibiting minor difference from the previous month. Weather in May »Weather in June
June, the first month of the summer in Periyamulla, is still a warm month, with an average temperature ranging between max 29.6°C (85.3°F) and min 25.9°C (78.6°F). At the onset of June, Periyamulla records an average high-temperature of a warm 29.6°C (85.3°F), showing little deviation from the preceding month. Weather in June »Weather in July
July, like June, in Periyamulla, Sri Lanka, is a moderately hot summer month, with an average temperature ranging between max 29.2°C (84.6°F) and min 25.5°C (77.9°F). July is the month when Periyamulla sees the lowest average temperatures, with a high of 29.2°C (84.6°F) and a low of 25.5°C (77.9°F). July's heat index is estimated at a fiery hot 36°C (96.8°F). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Periyamulla, Sri Lanka, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 25.4°C (77.7°F). The transition into August reveals an average high-temperature of a still warm 29.3°C (84.7°F), mirroring a close resemblance to July. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Periyamulla, Sri Lanka, with an average temperature fluctuating between 29.5°C (85.1°F) and 25.2°C (77.4°F). As Periyamulla welcomes September, the average high-temperature records at a still moderately hot 29.5°C (85.1°F), marking an insignificant deviation from the prior month. Weather in September »Weather in October
October, like September, in Periyamulla, Sri Lanka, is another warm autumn month, with an average temperature fluctuating between 25.1°C (77.2°F) and 29.9°C (85.8°F). October brings an average high-temperature of a still moderately hot 29.9°C (85.8°F), nearly identical to the preceding month. Weather in October »Weather in November
The last month of the autumn, November, is a tropical month in Periyamulla, Sri Lanka, with an average temperature varying between 24.5°C (76.1°F) and 30.2°C (86.4°F). The introduction of November notes a subtle temperature variation to a tropical 30.2°C (86.4°F) from October's 29.9°C (85.8°F). Weather in November »Weather in December
December, the first month of the winter in Periyamulla, is also a moderately hot month, with an average temperature varying between 29.9°C (85.8°F) and 23.7°C (74.7°F). Periyamulla experiences a recorded average high-temperature of a moderately hot 29.9°C (85.8°F) in December, closely aligned with November's 30.2°C (86.4°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Periyamulla, 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
Periyamulla, 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:
1009.6mbar - 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
Periyamulla, 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
Periyamulla, 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
Periyamulla, 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:
153mm - 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
Periyamulla, 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:
24.4 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
Periyamulla, 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 30min - Average daylight in June:
12h and 30min
- 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 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 42min - 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
Periyamulla, 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:
3 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
Periyamulla, 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
Periyamulla, 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
Periyamulla, Sri Lanka
The months with the highest visibility are January, February, March, April, June, July, September and December (10km).
The months with the lowest visibility are May, August, October and November (9km).





