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Weather in Negombo for May 2026

Your guide to Negombo weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Negombo at the beginning of May is 30.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 28.3 °C by the end of May.

    • Rain 🌧️

  • Negombo experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 273 mm.

Average dry days
0
Dry days
Average rainy days
31
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/26°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Negombo Weather May

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

Temperatures trend during May in Negombo

See the weather trend as well as the moving average line

May weather in Negombo day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Moderate rain at times
Moderate rain at times
 30° /25° 1.8 mm 7
2 May Patchy rain possible
Patchy rain possible
 30° /26° 0.3 mm 7
3 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 4.8 mm 7
4 May Patchy rain possible
Patchy rain possible
 31° /26° 2 mm 7
5 May Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /27° 2.5 mm 7
6 May Patchy rain possible
Patchy rain possible
 30° /26° 1 mm 7
7 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /25° 16.1 mm 7
8 May Moderate rain at times
Moderate rain at times
 29° /25° 1.9 mm 6
9 May Patchy rain possible
Patchy rain possible
 30° /26° 0.4 mm 7
10 May Patchy rain possible
Patchy rain possible
 29° /26° 2.2 mm 6
11 May Patchy rain possible
Patchy rain possible
 30° /26° 0.7 mm 7
12 May Patchy rain possible
Patchy rain possible
 30° /26° 2 mm 7
13 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 8.7 mm 7
14 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 17.7 mm 6
15 May Moderate rain at times
Moderate rain at times
 29° /26° 2.6 mm 6
16 May Patchy rain possible
Patchy rain possible
 30° /25° 7.1 mm 7
17 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /25° 14.5 mm 6
18 May Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /25° 20.4 mm 6
19 May Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /26° 12.4 mm 6
20 May Moderate rain at times
Moderate rain at times
 29° /26° 5 mm 6
21 May Moderate rain at times
Moderate rain at times
 29° /26° 7.4 mm 6
22 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 13.4 mm 7
23 May Moderate rain at times
Moderate rain at times
 29° /26° 5.4 mm 6
24 May Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /26° 14.3 mm 6
25 May Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /26° 38.1 mm 6
26 May Patchy light rain with thunder
Patchy light rain with thunder
 29° /26° 16.2 mm 6
27 May Light rain shower
Light rain shower
 28° /26° 9.9 mm 6
28 May Patchy rain possible
Patchy rain possible
 29° /27° 5.5 mm 6
29 May Light rain shower
Light rain shower
 28° /26° 7.5 mm 6
30 May Patchy light rain with thunder
Patchy light rain with thunder
 28° /26° 21.9 mm 6
31 May Patchy light rain with thunder
Patchy light rain with thunder
 29° /26° 9.4 mm 6
Next
Important Notice
Our weather forecast for Negombo in May 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 Negombo forecast closer to your planned date for the most up-to-date weather information.
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Negombo in May - FAQ

What are the expected maximum and minimum temperatures in Negombo during May?
During May, expect a variety of temperatures with highs around 29° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Negombo during May?
Significant rainfall exceeding 273 mm is expected in Negombo during May, occurring over more than 31 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Negombo during May?
The average wind speed in Negombo during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Negombo

Explore the daily rainfall trends and prepare for Negombos May weather 💧

UV exposure in Negombo during May

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

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Get accurate weather forecasts for Negombo, located at latitude 7.208 and longitude 79.836. Stay updated with localized weather information tailored for Negombo.

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