Bangkok weather in May
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Bangkok May weather at a glance
In May, Bangkok averages 29.4°C, with typical highs of 33.1°C and lows of 26.6°C. The historical average is 25 wet days and 80% humidity.
Bangkok May temperature & humidity
Bangkok May rain & wet days
Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.
What to wear in Bangkok in May
Expect intense heat. Pack lightweight quick-dry clothing, sun protection and a refillable bottle. Rain is frequent at roughly 25 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 33.1°C
- Morning & eveningLight layer for air-conditioned rooms · average low 26.6°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Bangkok May sunrise & sunset times
2026 May · Local time (Asia/Bangkok)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-05-01 | 05:57 | 18:34 | 12h 37m |
| 2026-05-15 | 05:52 | 18:37 | 12h 46m |
| 2026-05-31 | 05:49 | 18:42 | 12h 53m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Today’s weather and forecast
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Bangkok rainy season & dry season
Is May wet or dry?
Thailand’s southwest monsoon generally brings rain from mid-May to mid-October. The southern east coast also receives northeast-monsoon rain, so Koh Samui and Phuket do not share one wet/dry-season calendar. The 2024–2025 average for May is 25 wet days.
2024–2025 wet-day averages, not long-term season boundaries. Wet days do not mean all-day rain.
Packing for rainy and dry periods
For rainy periods, bring a light rain jacket, a waterproof pouch and quick-dry clothes. In drier months, pack sunscreen and a hat, plus a compact umbrella for showers. For beach trips, check the boat operator’s weather and cancellation notices.
Season guide: Thailand Government
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Best months to visit Bangkok
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
May weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Bangkok weather like in May?
In May, Bangkok averages 29.4°C, with typical highs of 33.1°C and lows of 26.6°C. The historical average is 25 wet days and 80% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Bangkok in May?
There are about 25 wet days in May. Pack a rain jacket and water-resistant shoes.
What should I wear in Bangkok in May?
Expect intense heat. Pack lightweight quick-dry clothing, sun protection and a refillable bottle. Rain is frequent at roughly 25 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
What are the best months to visit Bangkok?
Recent weather data rates January, December among the more comfortable months.
Where can I check Bangkok weather in May in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
Is May rainy or dry season in Bangkok?
Thailand’s southwest monsoon generally brings rain from mid-May to mid-October. The southern east coast also receives northeast-monsoon rain, so Koh Samui and Phuket do not share one wet/dry-season calendar. The 2024–2025 average for May is 25 wet days.
Which months have fewer rainy days in Bangkok?
In our 2024–2025 data, January, December, February have the fewest wet days. These are recent observations, not long-term climate normals. Compare temperatures and your planned activities as well.
What time are sunrise and sunset in Bangkok in May?
On 2026-05-15, calculated sunrise is 05:52 and sunset is 18:37 in local time (Asia/Bangkok). Times vary by date and terrain.
Bangkok weather by month
More Southeast Asia destinations in May
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations