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Gampaha, Sri Lanka Weather Averages

April is the hottest month in Gampaha with an average temperature of 29°C (84°F) and the coldest is January at 27°C (81°F). The wettest month is June with an average of 105mm of rain. The best month to swim in the sea is in April when the average sea temperature is 30°C (86°F).

Average Temperature Gampaha

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
272828292928282828282727JanFebMarAprMayJunJulAugSepOctNovDec

Average High Low Temperature Gampaha

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
232324252626262625252423313232323130303030303030JanFebMarAprMayJunJulAugSepOctNovDec

Average Rainfall Gampaha

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
10910111312121288101052515168851051028871546557JanFebMarAprMayJunJulAugSepOctNovDecDaysMM

Average Sea Temperature Gampaha

What is Average Sea Temperature?
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface
What is Average Sea Temperature?
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface
282829302928282827272928JanFebMarAprMayJunJulAugSepOctNovDec

Gampaha : Next 24-Hour Weather

Today - 16th April 2025

Sunrise 06:02

Sunrise

Sunset 18:19

Sunset
22:00
Clear
28°C (81°F)
23:00
Partly cloudy
27°C (80°F)

Tomorrow - 17th April 2025

Sunrise 06:02

Sunrise

Sunset 18:19

Sunset
0:00
Partly cloudy
27°C (80°F)
1:00
Patchy rain possible
27°C (80°F)
2:00
Patchy rain possible
27°C (80°F)
3:00
Patchy rain possible
27°C (79°F)
4:00
Patchy rain possible
26°C (79°F)
5:00
Patchy rain possible
26°C (78°F)
6:00
Patchy rain possible
26°C (79°F)
7:00
Patchy rain possible
27°C (81°F)
8:00
Patchy rain possible
29°C (83°F)
9:00
Patchy rain possible
30°C (85°F)
10:00
Patchy rain possible
31°C (86°F)
11:00
Patchy rain possible
31°C (87°F)
12:00
Patchy rain possible
30°C (85°F)
13:00
Patchy rain possible
31°C (86°F)
14:00
Patchy rain possible
31°C (87°F)
15:00
Patchy rain possible
30°C (86°F)
16:00
Patchy rain possible
30°C (85°F)
17:00
Clear
29°C (84°F)
18:00
Clear
28°C (82°F)
19:00
Clear
28°C (82°F)
20:00
Clear
28°C (82°F)
21:00
Clear
28°C (81°F)
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