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Colombo in March: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Colombo in March will be like? Take a look at our weather guide for Colombo, based on historical data.
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March

Weather in Colombo in March 2025

OK Weather
Hot
🌧️
Rainy
🌊
Very warm water
If you plan to visit Colombo in March, the weather is typically alright, with an average high temperature of +31°C during the day and approximately 2 sunny days. Expect some rainy, though, as there are typically 19 rainy days in the month and around 76 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+31°C
Avg. max. temperature
+22°C
Min.
+36°C
Max.
76 mm
Total precipitation
78%
Avg. humidity
1 m/s
Avg. wind
2 ☀️
Sunny Days
3 ⛅️
Cloudy
19 🌦
Rainy
Our opinion: Colombo has OK weather in March.

Average temperature in Colombo in March

Here are the expected maximum, average and minimum temperatures in Colombo for March based on the historical data.
Last Year
Historical Data

Going from a maximum of +33°C during the day to a minimum of +24°C during the night, the temperature in March averages around +31°C.

The average maximum temperature goes down 11% by the end of the month, compared with the beginning of the month, from +32°C to +31°C.

Is Colombo warm or cold in March?

Colombo is typically hot in March.

Maximum temperatures go up compared to the previous month from +31°C to +31°C. The minimum temperature also goes up from +24°C to +25°C.

Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.

March is one of the warmest months in Colombo, here is the comparison with other months:

Water temperature in Colombo in March

Water in Colombo in March is Very warm. It varies from +28°C to +30°C, with an average of +29°C. This is almost similar to the air temperature, which averages +31°C.

The water temperature in March is one of the warmest of the entire year:

The warmest water temperatures in Colombo are reached in April, when the average sea temperature rises to +30°C. The coldest water temperatures are in August, with an average of +27°C.

Can you swim in Colombo in March?

You can definitely swim in Colombo in March, the water is very warm (+29°C in average), and might even be unpleasant for ones who like it more fresh.
🦭
Cold
Below +16°C
🏄‍♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Don't forget sunscreen and a hat, it's going to be hot!

Climate in Colombo in March

Colombo weather looks like this, on average, in March and the surrounding months.
FebruaryMarchApril
Avg. temperature
+31°C+31°C+31°C
Min. temperature
+20°C+22°C+22°C
Max. temperature
+36°C+36°C+36°C
Rainfall
54 mm76 mm165 mm
Wind
2 m/s1 m/s2 m/s
Avg. water temperature
+28°C+29°C+30°C
Humidity
75%78%81%
Air pressure
1010 HPa1009 HPa1008 HPa
Sunny days
520
Cloudy days
830
Rainy days
131919
Snowy days
000

March weather is still as ok as in February. The temperature levels stay the same in the area of +31°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 54 mm to 76 mm. Humidity rises from 75% to 78%. Winds are calmer in comparison to February, going down from 2 m/s to 1 m/s on average. The days becoming less sunny, going from 5 sunny days in February to 2 in March.

April brings much the same weather, it remains ok.

Wind

Wind speed in Colombo in March based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Colombo is gradually decreasing during March, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during March in Colombo based on historical data.
Last Year
Historical Data
Typically, there is a 84% chance of rain on an average day in March, with total rainfall of approximately 88 mm. The maximum amount of rainfall per day is around 9 mm, which is considered light rain. March is a pretty wet month with over 26 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how March is compared with other months in the amount of precipitation, total mm:
Colombo wettest month is October, where a typical day has a 77% chance of precipitation and 300 mm of rainfall per day. February, on the other hand, is the driest month with a mere 45% chance of precipitation and 54 mm of rainfall per day.

How was the weather last March in Colombo?

This is the weather in Colombo in March 2023:
1 March
☁️
+32°C
2 March
☁️
+32°C
3 March
☁️
+32°C
4 March
☁️
+32°C
5 March
☁️
+31°C
6 March
☁️
+31°C
7 March
☀️
+31°C
8 March
☁️
+33°C
9 March
☁️
+32°C
10 March
☁️
+30°C
11 March
☁️
+30°C
12 March
☁️
+32°C
13 March
☁️
+31°C
14 March
🌧️
+30°C
15 March
☁️
+30°C
16 March
☁️
+31°C
17 March
☁️
+30°C
18 March
🌧️
+31°C
19 March
🌧️
+31°C
20 March
☁️
+30°C
21 March
☁️
+31°C
22 March
☁️
+31°C
23 March
☁️
+31°C
24 March
☁️
+31°C
25 March
☀️
+31°C
26 March
☀️
+31°C
27 March
☀️
+31°C
28 March
☁️
+31°C
29 March
☁️
+31°C
30 March
☁️
+31°C
31 March
☀️
+31°C
In March 2023 Colombo had 5 sunny days, 23 cloudy days, and 3 rainy days. The average maximum temperature was +31°C, with an absolute maximum of +33°C and a minimum of +30°C. The average humidity was 82%, with a maximum of 93% and a minimum of 58%. The average wind speed was 2 m/s, with a maximum of 6 m/s and a minimum of 0 m/s.
Are you planning a trip in March?

Climate Change over Years

This is how Colombo climate have been changing during last 43 years period.

The climate in Colombo in March has not changed much over the last 43 years.

The average temperature was the lowest in 2000 (+29°C) and the highest in 2020 (+32°C). The driest year was 1980 with only 1662 mm of rainfall, and the wettest year was 2006 with 3008 mm.

FAQ

Frequently asked questions about the weather in Colombo in March:

Is March a good time to visit Colombo?

It’s always a good time to visit Colombo, but the weather is changeable in March, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Colombo in March?

Absolutely, March is hot in Colombo. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Can you swim in Colombo in March?

Yes, you can swim in Colombo in March, the water is very warm, with temperature averaging at +29°C, but it's important to manage hydration and sun exposure.

Is Colombo rainy in March?

Colombo is often rainy in March. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Colombo in March?

Usually, it’s not very sunny in Colombo in March, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Monthly weather in Colombo

Source of the data

For this page, we’ve looked at the typical weather in Colombo, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.