Weather in Bangkok for May 2025
In general, the average temperature in Bangkok at the beginning of May is 38.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 35.7 °C by the end of May.
Expect significant rainfall in Bangkok during May, with an average of 16 rainy days.
Is May a good time to visit Bangkok? check out the best time to travel to Bangkok page.
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Bangkok in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  38° | 2  37° | 3 37° | 4  38° | |||
| 5 40° | 6  39° | 7  39° | 8 38° | 9 35° | 10 36° | 11 36° |
| 12 37° | 13 38° | 14 35° | 15 36° | 16 38° | 17  38° | 18 37° |
| 19 39° | 20 39° | 21 37° | 22 35° | 23 32° | 24  32° | 25 34° |
| 26 36° | 27 37° | 28 37° | 29 35° | 30 36° | 31 35° |
You can click on date
Temperatures trend during May in Bangkok
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Moderate or heavy rain shower | 38° /28° | 3 mm | 9 | |
| 2 May | Patchy rain possible | 37° /29° | 0.3 mm | 9 | |
| 3 May | Patchy rain possible | 37° /29° | 0.1 mm | 9 | |
| 4 May | Partly cloudy | 38° /29° | 0 mm | 9 | |
| 5 May | Patchy rain possible | 40° /30° | 0.1 mm | 9 | |
| 6 May | Overcast | 39° /29° | 0 mm | 9 | |
| 7 May | Sunny | 39° /30° | 0 mm | 9 | |
| 8 May | Sunny | 38° /30° | 3.7 mm | 9 | |
| 9 May | Moderate or heavy rain shower | 35° /28° | 9.1 mm | 8 | |
| 10 May | Moderate or heavy rain shower | 36° /28° | 7.8 mm | 8 | |
| 11 May | Moderate or heavy rain shower | 36° /29° | 7.4 mm | 8 | |
| 12 May | Moderate rain at times | 37° /29° | 1.8 mm | 9 | |
| 13 May | Patchy rain possible | 38° /29° | 1.9 mm | 8 | |
| 14 May | Patchy rain possible | 35° /28° | 3.3 mm | 8 | |
| 15 May | Patchy rain possible | 36° /28° | 2 mm | 8 | |
| 16 May | Partly cloudy | 38° /28° | 0 mm | 9 | |
| 17 May | Cloudy | 38° /28° | 2.2 mm | 9 | |
| 18 May | Partly cloudy | 37° /28° | 0 mm | 9 | |
| 19 May | Patchy rain possible | 39° /29° | 0.4 mm | 9 | |
| 20 May | Sunny | 39° /28° | 0 mm | 9 | |
| 21 May | Sunny | 37° /28° | 5.6 mm | 9 | |
| 22 May | Moderate or heavy rain shower | 35° /28° | 5.9 mm | 8 | |
| 23 May | Moderate or heavy rain shower | 32° /27° | 13 mm | 7 | |
| 24 May | Heavy rain at times | 32° /27° | 22.3 mm | 7 | |
| 25 May | Cloudy | 34° /27° | 5.1 mm | 8 | |
| 26 May | Patchy rain possible | 36° /27° | 2 mm | 8 | |
| 27 May | Moderate rain at times | 37° /28° | 0.3 mm | 8 | |
| 28 May | Moderate or heavy rain shower | 37° /27° | 7.9 mm | 9 | |
| 29 May | Moderate or heavy rain shower | 35° /27° | 8.9 mm | 8 | |
| 30 May | Moderate or heavy rain shower | 36° /27° | 5.7 mm | 8 | |
| 31 May | Patchy rain possible | 35° /28° | 0.3 mm | 8 | |
| Next | |||||
Guide for Bangkok in May
Bangkok, Thailand, in May experiences the onset of the rainy season, characterized by increased humidity and frequent rain showers.
At the beginning of the month, the weather is typically hot and humid, with daytime temperatures averaging around 33° and nighttime temperatures dropping to around 26°. The humidity levels are high, often exceeding 70%, making the heat feel more intense.
Rainfall starts to become more frequent, with occasional thunderstorms in the afternoons and evenings.
As the month progresses, the frequency and intensity of rain showers increase. By the end of May, the weather in Bangkok sees more consistent rainfall, often in the form of heavy downpours that can lead to temporary flooding in some areas.
Daytime temperatures remain high, averaging around 32°, while nighttime temperatures stay relatively stable at around 25°. The increased cloud cover and rain provide some relief from the intense heat, but the humidity remains high, often reaching up to 80%.
Overall, May in Bangkok marks a transition from the hot season to the rainy season, with a noticeable increase in rainfall and humidity. Visitors should be prepared for sudden rain showers and high humidity levels, especially towards the end of the month.
Bangkok in May - FAQ
What to pack to Bangkok in May?
As you prepare for your trip to Bangkok 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 Bangkok, 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
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