Annual mean 25°C · wettest around October · prevailing wind W
Warmest
29.9 °C
Coldest
27.4 °C
Wettest
27%
Windiest
3.0 m/s
Prevailing
W
2.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Ratnapura over the whole year is 25°C. April is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 21°C. The rainy (wet) season in Ratnapura runs from August to November, peaking in October with a 25% chance of rain on a given day. The dry season is December to April; February is the driest month, at 6%. Winds in Ratnapura are highest in July, averaging 2.2 m/s (8 km/h), and lightest in April, at 1.0 m/s (4 km/h). The prevailing wind is from the W. The clearest skies in Ratnapura come in February, when the sky is typically 53% covered; October is the cloudiest month, at 75%.
Month by month Ratnapura climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
28°C
21°C
31°C
7%
59%
1.2 m/s
22
42
16
February
29°C
22°C
31°C
6%
53%
1.3 m/s
20
33
14
March
29°C
22°C
33°C
8%
56%
1.1 m/s
18
21
12
April
30°C
23°C
34°C
11%
62%
1.0 m/s
17
16
10
May
29°C
24°C
33°C
22%
73%
1.5 m/s
16
20
9
June
28°C
24°C
32°C
20%
70%
2.1 m/s
16
27
12
July
28°C
24°C
31°C
14%
71%
2.2 m/s
15
33
13
August
28°C
24°C
31°C
16%
72%
2.0 m/s
16
36
12
September
28°C
23°C
31°C
23%
73%
1.7 m/s
16
33
12
October
28°C
23°C
31°C
25%
75%
1.3 m/s
18
31
12
November
28°C
22°C
32°C
21%
74%
1.0 m/s
19
28
13
December
28°C
22°C
31°C
13%
67%
1.2 m/s
20
36
14
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Ratnapura weather by season
Year round, Ratnapura has days of about 28°C at their warmest in September, its coolest month, and 30°C in April, its warmest; the coolest hours of the day run from 21°C to 24°C through the year, and the average temperature over the year is 25°C around the clock. Rain is most likely around October and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Ratnapura weather in winterDecember to February
High 28°CLow 22°CRain 9%
Winter in Ratnapura has typical daily highs of about 28°C and lows of about 22°C, with a 9% chance of rain on a given day.
Ratnapura weather in springMarch to May
High 29°CLow 23°CRain 14%
Spring in Ratnapura has typical daily highs of about 29°C and lows of about 23°C, with a 14% chance of rain on a given day.
Ratnapura weather in summerJune to August
High 28°CLow 24°CRain 16%
Summer in Ratnapura has typical daily highs of about 28°C and lows of about 24°C, with a 16% chance of rain on a given day.
Ratnapura weather in autumnSeptember to November
High 28°CLow 23°CRain 23%
Autumn in Ratnapura has typical daily highs of about 28°C and lows of about 23°C, with a 23% chance of rain on a given day.
When is the rainy season in Ratnapura?
The rainy (wet) season in Ratnapura runs from August to November, peaking in October with a 25% chance of rain on a given day. The dry season is December to April; February is the driest month, at 6%.
What time of year is Ratnapura windiest?
Winds in Ratnapura are highest in July, averaging 2.2 m/s (8 km/h), and lightest in April, at 1.0 m/s (4 km/h). The prevailing wind is from the W.
What is the average temperature in Ratnapura year round?
The average temperature in Ratnapura over the whole year is 25°C. April is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 21°C.