Colombo, SRI LANKA and its best beaches
Climate - Temperatures and rainfall - Indian Ocean
Colombo: Temperatures during the day, at night, rain and bathing conditions
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January Day temperature  86°F / 30°C |
Night temp.  74°F / 23°C |
Bathing temperature  85°F / 29°C |
Rain  084 mm |
Conditions  
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February Day temperature 88°F / 31°C |
Night temp. 76°F / 24°C |
Bathing temperature 85°F / 29°C |
Rain 064 mm |
Conditions  
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March Day temperature 88°F / 31°C |
Night temp. 79°F / 26°C |
Bathing temperature 85°F / 29°C |
Rain 114 mm |
Conditions
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April Day temperature 88°F / 31°C |
Night temp. 79°F / 26°C |
Bathing temperature 86°F / 30°C |
Rain 254 mm |
Conditions 
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May Day temperature 88°F / 31°C |
Night temp. 81°F / 27°C |
Bathing temperature 86°F / 30°C |
Rain 335 mm |
Conditions
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June Day temperature 86°F / 30°C |
Night temp. 81°F / 27°C |
Bathing temperature 86°F / 30°C |
Rain 190 mm |
Conditions
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July Day temperature 85°F / 29°C |
Night temp. 81°F / 27°C |
Bathing temperature 85°F / 29°C |
Rain 130 mm |
Conditions
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August Day temperature 85°F / 29°C |
Night temp. 79°F / 26°C |
Bathing temperature 85°F / 29°C |
Rain 097 mm |
Conditions
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September Day temperature 85°F / 29°C |
Night temp. 79°F / 26°C |
Bathing temperature 85°F / 29°C |
Rain 157 mm |
Conditions
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October Day temperature 85°F / 29°C |
Night temp. 79°F / 26°C |
Bathing temperature 85°F / 29°C |
Rain 353 mm |
Conditions
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November Day temperature 85°F / 29°C |
Night temp. 77°F / 25°C |
Bathing temperature 85°F / 29°C |
Rain 307 mm |
Conditions
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December Day temperature 86°F / 30°C |
Night temp. 76°F / 24°C |
Bathing temperature 85°F / 29°C |
Rain 152 mm |
Conditions
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Sri Lanka : climate and when to go to Colombo
Tropical monsoon climate, northeast monsoon (December to March), southwest monsoon (June to October).
| January Acceptable |
February Pecfect |
March Acceptable |
April Avoid |
May Avoid |
June Risky |
July Acceptable |
August Acceptable |
September Risky |
October Avoid |
November Avoid |
December Risky |
When to go? The hottest month for the beach, lazing around and swimming is April. Check the precipitations because heavy showers may occur, otherwise other periods are possible. The coolest month is July, if you can not stand the heat too much. The driest month of the year is February, if you do not like the rain at all.
Click on
Colombo to display its climate.
Graphs and temperature curves with average precipitation over the year
Precipitation, rainfall, cyclone: SRI LANKA
Temperatures of bathing water around Colombo
Landmarks
Perfect conditions to enjoy the beach.
Favorable conditions for enjoying the beach. Cloudy with sunny spells and thunderstorms. Very strong tropical or monsoon rains.
Months at risk of cyclones with alerts level 1 to 5. Nice swimming at more than 26°C / 79°F. Everything is perfect for traveling.No cyclone risk for this country
Indian Ocean
Climate May 2026
Colombo sunshine in summer and winter
The sun at its zenith, that means well perpendicular to the surface of the Earth, sending 100% of radiation and heat. Colombo receives in winter (january), 86% of sun power and 95% during summer time (july).
The average temperature and sunshine deviations between summer and winter are 9%. This small gap means that the temperature at sea does not really vary and that the sea remains warm enough in summer and winter. The air is also hot all year round without great thermal amplitude.
Average temperatures and rainfall for a stay in May
On the left, the averages observed every month of May on the Sri Lanka beaches. The trends for next month are, slightly lower average daytime temperatures, a bathing water in Indian Ocean remaining at a stable temperature, less rainfall with nights as temperate as this month.
Sunset and sunrise times for SRI LANKA
Local time : May 2026, Sunday 03, 01:16 PM
Sunrise time : 05:28 am, point A
Sunset time : 5:46 pm, point B
Duration of daylight : 12:18 / 24:00
Jet lag : GMT+5
The average monthly UV index of SRI LANKA
What is the period of mosquitoes virulence over the year?
Weather forecast for Colombo
Here are the current 5-day forecasts for Timbirigasyaya / Colombo. Temperatures are spaced 3 hours apart for each day. The summary of the state of the sky gives the trend of the week. The sea temperature at is a monthly average. In lagoons or seashores where the bathing water is shallow, you can add some degrees.
Monday
May 04, 2026
8 am
84.8°F
30°C
Light rain
Humidity 76%
Sea 86°F/30°C
Monday
May 04, 2026
11 am
84.5°F
30°C
Moderate rain
Humidity 77%
Sea 86°F/30°C
Monday
May 04, 2026
2 pm
83.9°F
29°C
Moderate rain
Humidity 80%
Sea 86°F/30°C
Monday
May 04, 2026
5 pm
82°F
28°C
Moderate rain
Humidity 84%
Sea 86°F/30°C
Monday
May 04, 2026
8 pm
79.2°F
27°C
Moderate rain
Humidity 91%
Sea 86°F/30°C
Monday
May 04, 2026
11 pm
80°F
27°C
Light rain
Humidity 87%
Sea 86°F/30°C
Tuesday
May 05, 2026
8 am
82.6°F
29°C
Overcast clouds
Humidity 74%
Sea 86°F/30°C
Tuesday
May 05, 2026
11 am
83.4°F
29°C
Overcast clouds
Humidity 75%
Sea 86°F/30°C
Tuesday
May 05, 2026
2 pm
83.3°F
29°C
Light rain
Humidity 77%
Sea 86°F/30°C
Tuesday
May 05, 2026
5 pm
83.2°F
29°C
Light rain
Humidity 78%
Sea 86°F/30°C
Tuesday
May 05, 2026
8 pm
82.1°F
28°C
Light rain
Humidity 80%
Sea 86°F/30°C
Tuesday
May 05, 2026
11 pm
81.6°F
28°C
Light rain
Humidity 81%
Sea 86°F/30°C
Wednesday
May 06, 2026
8 am
82.6°F
29°C
Overcast clouds
Humidity 74%
Sea 86°F/30°C
Wednesday
May 06, 2026
11 am
84.3°F
30°C
Light rain
Humidity 72%
Sea 86°F/30°C
Wednesday
May 06, 2026
2 pm
84.3°F
30°C
Broken clouds
Humidity 72%
Sea 86°F/30°C
Wednesday
May 06, 2026
5 pm
82.2°F
28°C
Light rain
Humidity 80%
Sea 86°F/30°C
Wednesday
May 06, 2026
8 pm
82.9°F
29°C
Light rain
Humidity 78%
Sea 86°F/30°C
Wednesday
May 06, 2026
11 pm
82.5°F
29°C
Broken clouds
Humidity 77%
Sea 86°F/30°C
Thrusday
May 07, 2026
8 am
85°F
30°C
Scattered clouds
Humidity 71%
Sea 86°F/30°C
Thrusday
May 07, 2026
11 am
85.9°F
30°C
Light rain
Humidity 71%
Sea 86°F/30°C
Thrusday
May 07, 2026
2 pm
84.2°F
29°C
Light rain
Humidity 77%
Sea 86°F/30°C
Thrusday
May 07, 2026
5 pm
80.7°F
28°C
Moderate rain
Humidity 84%
Sea 86°F/30°C
Thrusday
May 07, 2026
8 pm
80.4°F
27°C
Light rain
Humidity 83%
Sea 86°F/30°C
Thrusday
May 07, 2026
11 pm
79.3°F
27°C
Light rain
Humidity 85%
Sea 86°F/30°C
Friday
May 08, 2026
8 am
83.9°F
29°C
Moderate rain
Humidity 74%
Sea 86°F/30°C
Friday
May 08, 2026
11 am
85.1°F
30°C
Light rain
Humidity 70%
Sea 86°F/30°C
Friday
May 08, 2026
2 pm
83.7°F
29°C
Light rain
Humidity 74%
Sea 86°F/30°C
Friday
May 08, 2026
5 pm
77.6°F
26°C
Very heavy rain
Humidity 95%
Sea 86°F/30°C
Friday
May 08, 2026
8 pm
77.5°F
26°C
Heavy intensity rain
Humidity 91%
Sea 86°F/30°C
Weather uncertainties 2026 to go to Colombo ?
When traveling in the tropics as a seaside, rain is not welcome. If you see this indicator, with possible storms, that does not mean that it will rain all day long. When we observe the local rainfall, it is either really zero or very weak. Meteorologists prefer to be pessimistic. So observe below, the skies photographed during a week announced stormy in Asia. It did not rain once. I invite you to integrate this parameter before going to Colombo for a good trip to the sun!
