Colombo climate guide

Temperature in Colombo (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
31°C maximum daytime temperature in January in Colombo31
31°C maximum daytime temperature in February in Colombo31
32°C maximum daytime temperature in March in Colombo32
32°C maximum daytime temperature in April in Colombo32
31°C maximum daytime temperature in May in Colombo31
30°C maximum daytime temperature in June in Colombo30
30°C maximum daytime temperature in July in Colombo30
30°C maximum daytime temperature in August in Colombo30
30°C maximum daytime temperature in September in Colombo30
30°C maximum daytime temperature in October in Colombo30
30°C maximum daytime temperature in November in Colombo30
30°C maximum daytime temperature in December in Colombo30
Min temperature (night-time)
22°C minimum night-time temperature in January in Colombo22
23°C minimum night-time temperature in February in Colombo23
24°C minimum night-time temperature in March in Colombo24
24°C minimum night-time temperature in April in Colombo24
25°C minimum night-time temperature in May in Colombo25
25°C minimum night-time temperature in June in Colombo25
25°C minimum night-time temperature in July in Colombo25
25°C minimum night-time temperature in August in Colombo25
25°C minimum night-time temperature in September in Colombo25
24°C minimum night-time temperature in October in Colombo24
23°C minimum night-time temperature in November in Colombo23
22°C minimum night-time temperature in December in Colombo22
Sea temperature
28°C sea temperature in January in Colombo28
28°C sea temperature in February in Colombo28
29°C sea temperature in March in Colombo29
30°C sea temperature in April in Colombo30
29°C sea temperature in May in Colombo29
28°C sea temperature in June in Colombo28
27°C sea temperature in July in Colombo27
27°C sea temperature in August in Colombo27
28°C sea temperature in September in Colombo28
28°C sea temperature in October in Colombo28
28°C sea temperature in November in Colombo28
28°C sea temperature in December in Colombo28

Sunshine & Daylight in Colombo

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
12 hours of daylight per day in January in Colombo12
12 hours of daylight per day in February in Colombo12
12 hours of daylight per day in March in Colombo12
12 hours of daylight per day in April in Colombo12
12 hours of daylight per day in May in Colombo12
13 hours of daylight per day in June in Colombo13
12 hours of daylight per day in July in Colombo12
12 hours of daylight per day in August in Colombo12
12 hours of daylight per day in September in Colombo12
12 hours of daylight per day in October in Colombo12
12 hours of daylight per day in November in Colombo12
12 hours of daylight per day in December in Colombo12

Rainfall in Colombo

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
5 days with some rainfall in January in Colombo5
5 days with some rainfall in February in Colombo5
9 days with some rainfall in March in Colombo9
14 days with some rainfall in April in Colombo14
14 days with some rainfall in May in Colombo14
15 days with some rainfall in June in Colombo15
11 days with some rainfall in July in Colombo11
11 days with some rainfall in August in Colombo11
14 days with some rainfall in September in Colombo14
16 days with some rainfall in October in Colombo16
15 days with some rainfall in November in Colombo15
10 days with some rainfall in December in Colombo10
Average monthly rainfall (mm)
55 mm monthly rainfall in January in Colombo55
74 mm monthly rainfall in February in Colombo74
136 mm monthly rainfall in March in Colombo136
250 mm monthly rainfall in April in Colombo250
382 mm monthly rainfall in May in Colombo382
186 mm monthly rainfall in June in Colombo186
124 mm monthly rainfall in July in Colombo124
116 mm monthly rainfall in August in Colombo116
236 mm monthly rainfall in September in Colombo236
371 mm monthly rainfall in October in Colombo371
306 mm monthly rainfall in November in Colombo306
166 mm monthly rainfall in December in Colombo166

More climate for Colombo

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 11 (Extreme) in January in Colombo11
UV (maximum) index 11+ (Extreme) in February in Colombo11
UV (maximum) index 11+ (Extreme) in March in Colombo11
UV (maximum) index 11+ (Extreme) in April in Colombo11
UV (maximum) index 11+ (Extreme) in May in Colombo11
UV (maximum) index 11+ (Extreme) in June in Colombo11
UV (maximum) index 11+ (Extreme) in July in Colombo11
UV (maximum) index 11+ (Extreme) in August in Colombo11
UV (maximum) index 11+ (Extreme) in September in Colombo11
UV (maximum) index 11+ (Extreme) in October in Colombo11
UV (maximum) index 11 (Extreme) in November in Colombo11
UV (maximum) index 11 (Extreme) in December in Colombo11
Heat & Humidity
High heat & humidity in January in ColomboH
High heat & humidity in February in ColomboH
Very high heat & humidity in March in ColomboVH
Very high heat & humidity in April in ColomboVH
Very high heat & humidity in May in ColomboVH
High heat & humidity in June in ColomboH
High heat & humidity in July in ColomboH
High heat & humidity in August in ColomboH
High heat & humidity in September in ColomboH
High heat & humidity in October in ColomboH
High heat & humidity in November in ColomboH
High heat & humidity in December in ColomboH

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

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The climate guide for Colombo, Sri Lanka shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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