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Weather in Gampaha for January 2026

Your guide to Gampaha weather in January - trends and predictions

    Temperatures

  • The forecast for the next days in Gampaha predicts temperatures to be around 28 °C, close to the historical average.

  • In general, the average temperature in Gampaha at the beginning of January is 28.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 28.7 °C by the end of January.

    • Rain 🌧️

  • Gampaha experiences heavy rainfall in January, with over 20 rainy days and an average total precipitation 234.6 mm.

Average dry days
6
Dry days
Average rainy days
25
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/23°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Gampaha Weather January

Move between months or click on a day
December
February
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
25°
2
Patchy rain possible
28°
3
Patchy rain possible
30°
4
Patchy rain possible
29°
5
Patchy rain possible
28°
6
Partly cloudy
28°
7
Sunny
29°
8
Partly cloudy
27°
9
Moderate rain
24°
10
Moderate rain
29°
11
Patchy rain possible
27°
12
Patchy rain possible
28°
13
Patchy rain possible
29°
14
Patchy rain possible
30°
15
Sunny
30°
16
Sunny
29°
17
Sunny
29°
18
Sunny
28°
19
Sunny
29°
20
Partly cloudy
29°
21
Moderate or heavy rain shower
28°
22
Moderate or heavy rain shower
28°
23
Moderate or heavy rain shower
29°
24
Heavy rain at times
28°
25
Patchy rain possible
28°
26
Patchy rain possible
29°
27
Overcast
29°
28
Moderate rain at times
28°
29
Moderate or heavy rain shower
27°
30
Moderate or heavy rain shower
30°
31
Light rain shower
30°

Temperatures trend during January in Gampaha

See the weather trend as well as the moving average line

January weather in Gampaha day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
1 Jan. Light rain shower
Light rain shower
 25° /24° 6.9 mm 5
2 Jan. Patchy rain possible
Patchy rain possible
 28° /23° 6.7 mm 3
3 Jan. Patchy rain possible
Patchy rain possible
 30° /22° 0.1 mm 8
4 Jan. Patchy rain possible
Patchy rain possible
 29° /22° 0.2 mm 8
5 Jan. Patchy rain possible
Patchy rain possible
 28° /22° 0.5 mm 6
6 Jan. Partly cloudy
Partly cloudy
 28° /22° 0 mm 8
7 Jan. Sunny
Sunny
 29° /23° 0 mm 2.1
8 Jan. Partly cloudy
Partly cloudy
 27° /23° 0.1 mm 1.5
9 Jan. Moderate rain
Moderate rain
 24° /23° 10.1 mm 1
10 Jan. Moderate rain
Moderate rain
 29° /23° 9.3 mm 2.5
11 Jan. Patchy rain possible
Patchy rain possible
 27° /23° 1.4 mm 5
12 Jan. Patchy rain possible
Patchy rain possible
 28° /23° 2.5 mm 6
13 Jan. Patchy rain possible
Patchy rain possible
 29° /23° 0.8 mm 6
14 Jan. Patchy rain possible
Patchy rain possible
 30° /23° 0.4 mm 6
15 Jan. Sunny
Sunny
 30° /21° 0 mm 7
16 Jan. Sunny
Sunny
 29° /21° 0 mm 6
17 Jan. Sunny
Sunny
 29° /21° 0 mm 6
18 Jan. Sunny
Sunny
 28° /21° 0 mm 6
19 Jan. Sunny
Sunny
 29° /22° 0 mm 7
20 Jan. Partly cloudy
Partly cloudy
 29° /23° 0 mm 7
21 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /22° 5.3 mm 5
22 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /23° 34.3 mm 4
23 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /23° 11.5 mm 5
24 Jan. Heavy rain at times
Heavy rain at times
 28° /22° 2.1 mm 5
25 Jan. Patchy rain possible
Patchy rain possible
 28° /22° 0.3 mm 7
26 Jan. Patchy rain possible
Patchy rain possible
 29° /23° 0.4 mm 6
27 Jan. Overcast
Overcast
 29° /23° 0 mm 7
28 Jan. Moderate rain at times
Moderate rain at times
 28° /22° 1.3 mm 6
29 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /22° 10.9 mm 5
30 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /24° 22.7 mm 4
31 Jan. Light rain shower
Light rain shower
 30° /23° 3.7 mm 8
Next
Important Notice
Our weather forecast for Gampaha in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Gampaha forecast closer to your planned date for the most up-to-date weather information.
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Gampaha in January - FAQ

What are the expected maximum and minimum temperatures in Gampaha during January?

During January, expect a variety of temperatures with highs around 28° and lows near 23°, suitable for diverse activities and preferences.

How much rainfall should be expected in Gampaha during January?

Significant rainfall exceeding 234.6 mm is expected in Gampaha during January, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Gampaha during January?

The average wind speed in Gampaha during January is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

January rainfall patterns in Gampaha

Explore the daily rainfall trends and prepare for Gampahas January weather 💧
Typically, Gampaha has 25 rainy days in January with a total of 234.6 mm of rainfall.

UV exposure in Gampaha during January

Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️

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Get accurate weather forecasts for Gampaha, located at latitude 7.09 and longitude 79.993. Stay updated with localized weather information tailored for Gampaha.

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