Bangkok Weather in May
Thailand · Tropical Savanna climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
May in Bangkok sees average temperatures ranging from a low of 26.7°C (80.1°F) to a high of 33.6°C (92.5°F), with a mean of 29.7°C (85.5°F). Compared to the annual average of 28.1°C (82.6°F), this month is 1.6°C warmer than the yearly norm. Precipitation averages 158.2mm, making it approximately 17.0mm wetter than the monthly average of 141.0mm. The city receives an average of 10.0 hours of sunshine per day during May, with relative humidity averaging 76.0%. Wind speeds reach an average maximum of 16.5 km/h. For travelers, this month offers a temperature experience in Bangkok, with wetter-than-average conditions compared to the rest of the year.
Bangkok taught me that 'too hot' is a real concept. I arrived in April thinking I could handle it — 36°C with 70% humidity is genuinely dangerous if you're not acclimated. Pack moisture-wicking everything, plan indoor activities for 11am-3pm, and embrace the night markets. November-February is the survival window. The data backs this up: those months drop to a manageable 30°C with lower humidity and almost no rain.
May vs Adjacent Months
| Metric | April | May | June |
|---|---|---|---|
| Mean Temp | 30.0°C (86.0°F) | 29.7°C (85.5°F) | 29.1°C (84.4°F) |
| Rainfall | 83.5mm | 158.2mm | 155.8mm |
| Sunshine | 10.8 hrs | 10.0 hrs | 9.5 hrs |
| Humidity | 73.3% | 76.0% | 76.6% |
| Wind | 16.8 km/h | 16.5 km/h | 17.2 km/h |
| Rainy Days | 17.4 | 25.4 | 29.2 |
Seasonal Context
May falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Bangkok in May, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Bangkok in May?
The average temperature in Bangkok during May ranges from 26.7°C (80.1°F) to 33.6°C (92.5°F), with a mean of 29.7°C (85.5°F).
How much does it rain in Bangkok in May?
Bangkok receives an average of 158.2mm of precipitation in May, spread across approximately 25.4 rainy days.
What should I pack for Bangkok in May?
Based on May weather data, pack lightweight, breathable clothing, sunscreen, and a hat. Rain gear is essential — this month averages 158.2mm of precipitation.
Is May a good time to visit Bangkok?
May is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Bangkok
Cities with Similar May Climate (Tropical Savanna)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 13.76°, 100.5°. Timezone: Asia/Bangkok. Last updated: 2026-07-30.