Dehiwala-Mount Lavinia
May
Weather in Dehiwala-Mount Lavinia for May 2025
Your guide to Dehiwala-Mount Lavinia weather in May - trends and predictions
In general, the average temperature in Dehiwala-Mount Lavinia at the beginning of May is 29.9 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 29.4 °C by the end of May.
Dehiwala-Mount Lavinia experiences an exceptionally high level of rainfall in May, with more than 24 rainy days on average.
Is May a good time to visit Dehiwala-Mount Lavinia? check out the best time to travel to Dehiwala-Mount Lavinia page.
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1
Dry days
30
Rainy days
0
Snow days
30°/26°
Temperatures
19 km/h
Avg max wind
81 %
Avg humidity
Dehiwala-Mount Lavinia in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2 29° | 3 30° | 4 31° | |||
| 5 30° | 6 30° | 7 30° | 8 30° | 9 30° | 10 29° | 11 30° |
| 12 29° | 13 30° | 14 30° | 15 29° | 16  30° | 17 31° | 18  30° |
| 19 29° | 20 29° | 21 29° | 22 29° | 23 29° | 24  30° | 25 29° |
| 26 30° | 27 30° | 28 29° | 29 30° | 30 29° | 31 29° |
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Temperatures trend during May in Dehiwala-Mount Lavinia
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Moderate or heavy rain shower | 29° /26° | 21.9 mm | 7 | |
| 2 May | Moderate or heavy rain shower | 29° /25° | 39.4 mm | 7 | |
| 3 May | Moderate or heavy rain shower | 30° /26° | 11.7 mm | 7 | |
| 4 May | Moderate or heavy rain shower | 31° /27° | 9.9 mm | 7 | |
| 5 May | Moderate or heavy rain shower | 30° /26° | 11.2 mm | 7 | |
| 6 May | Moderate or heavy rain shower | 30° /26° | 19.2 mm | 7 | |
| 7 May | Moderate or heavy rain shower | 30° /26° | 11.1 mm | 7 | |
| 8 May | Moderate or heavy rain shower | 30° /25° | 10.8 mm | 7 | |
| 9 May | Moderate or heavy rain shower | 30° /26° | 20 mm | 7 | |
| 10 May | Moderate or heavy rain shower | 29° /26° | 15.8 mm | 6 | |
| 11 May | Moderate or heavy rain shower | 30° /26° | 15.5 mm | 7 | |
| 12 May | Moderate or heavy rain shower | 29° /25° | 17.8 mm | 7 | |
| 13 May | Moderate or heavy rain shower | 30° /26° | 19.2 mm | 7 | |
| 14 May | Moderate or heavy rain shower | 30° /26° | 14.5 mm | 7 | |
| 15 May | Moderate or heavy rain shower | 29° /25° | 7.9 mm | 6 | |
| 16 May | Patchy rain possible | 30° /26° | 5.3 mm | 7 | |
| 17 May | Patchy rain possible | 31° /26° | 8 mm | 7 | |
| 18 May | Heavy rain at times | 30° /26° | 35.3 mm | 7 | |
| 19 May | Heavy rain at times | 29° /26° | 48.9 mm | 7 | |
| 20 May | Moderate rain at times | 29° /26° | 28.8 mm | 7 | |
| 21 May | Moderate rain at times | 29° /26° | 9.6 mm | 7 | |
| 22 May | Heavy rain at times | 29° /26° | 10.3 mm | 7 | |
| 23 May | Patchy rain possible | 29° /26° | 13.8 mm | 7 | |
| 24 May | Cloudy | 30° /26° | 41.1 mm | 7 | |
| 25 May | Patchy rain possible | 29° /27° | 27.3 mm | 7 | |
| 26 May | Patchy rain possible | 30° /27° | 15 mm | 7 | |
| 27 May | Moderate or heavy rain shower | 30° /27° | 27.6 mm | 7 | |
| 28 May | Moderate or heavy rain shower | 29° /26° | 25.7 mm | 7 | |
| 29 May | Moderate or heavy rain shower | 30° /26° | 21.2 mm | 7 | |
| 30 May | Patchy rain possible | 29° /26° | 18.5 mm | 7 | |
| 31 May | Moderate or heavy rain shower | 29° /26° | 10.1 mm | 6 | |
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Important Notice
Our weather forecast for Dehiwala-Mount Lavinia 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 Dehiwala-Mount Lavinia forecast closer to your planned date for the most up-to-date weather information.
Dehiwala-Mount Lavinia in May - FAQ
What are the expected maximum and minimum temperatures in Dehiwala-Mount Lavinia during May?
During May, expect a variety of temperatures with highs around 30° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Dehiwala-Mount Lavinia during May?
Significant rainfall exceeding 952.6 mm is expected in Dehiwala-Mount Lavinia during May, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Dehiwala-Mount Lavinia during May?
The average wind speed in Dehiwala-Mount Lavinia during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Dehiwala-Mount Lavinia in May?
As you prepare for your trip to Dehiwala-Mount Lavinia in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Dehiwala-Mount Lavinia, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
- Insect Repellent: For destinations with mosquitos or other insects
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