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Bangkok in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Bangkok in May will be like? Take a look at our weather guide for Bangkok, based on historical data.
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May

Weather in Bangkok in May 2025

OK Weather
Hot
🌧️
Rainy
If you plan to visit Bangkok in May, the weather is typically alright, with an average high temperature of +93°F during the day and approximately 0 sunny days. Expect some rainy, though, as there are typically 15 rainy days in the month and around 132 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+93°F
Avg. max. temperature
+73°F
Min.
+102°F
Max.
132 mm
Total precipitation
74%
Avg. humidity
1 m/s
Avg. wind
0 ☀️
Sunny Days
3 ⛅️
Cloudy
15 🌦
Rainy
Our opinion: Bangkok has OK weather in May.

Average temperature in Bangkok in May

Here are the expected maximum, average and minimum temperatures in Bangkok for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +102°F during the day to a minimum of +79°F during the night, the temperature in May averages around +97°F.

The average maximum temperature goes down 8% by the end of the month, compared with the beginning of the month, from +97°F to +95°F.

Is Bangkok warm or cold in May?

Bangkok is typically hot in May.

Maximum temperatures go down compared to the previous month from +95°F to +93°F. The minimum temperature also goes up from +81°F to +81°F.

Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.

May is one of the warmest months in Bangkok, here is the comparison with other months:

Climate in Bangkok in May

Bangkok weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+95°F+93°F+91°F
Min. temperature
+70°F+73°F+73°F
Max. temperature
+104°F+102°F+104°F
Rainfall
64 mm132 mm129 mm
Wind
2 m/s1 m/s1 m/s
Humidity
71%74%74%
Air pressure
1008 HPa1006 HPa1006 HPa
Sunny days
400
Cloudy days
732
Rainy days
121519
Snowy days
000

May weather is still as ok as in April. It’s getting colder in May. From +95°F in the day, the average maximum temperature lowers to +93°F. Prepare for more rain. Average rainfall goes from 64 mm to 132 mm. Humidity rises from 71% to 74%. Winds are calmer in comparison to April, going down from 2 m/s to 1 m/s on average. The days becoming less sunny, going from 4 sunny days in April to 0 in May.

June brings much the same weather, it remains ok.

Wind

Wind speed in Bangkok in May based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Bangkok is gradually increasing during May, going from 1 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Bangkok based on historical data.
Last Year
Historical Data
Typically, there is a 45% chance of rain on an average day in May, with total rainfall of approximately 117 mm. The maximum amount of rainfall per day is around 47 mm, which is moderate rain. May is a pretty wet month with over 14 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Bangkok wettest month is September, where a typical day has a 50% chance of precipitation and 232 mm of rainfall per day. December, on the other hand, is the driest month with a mere 13% chance of precipitation and 8 mm of rainfall per day.

How was the weather last May in Bangkok?

This is the weather in Bangkok in May 2023:
1 May
☁️
+97°F
2 May
☁️
+95°F
3 May
☁️
+97°F
4 May
☀️
+98°F
5 May
☀️
+100°F
6 May
☀️
+102°F
7 May
☁️
+102°F
8 May
☁️
+99°F
9 May
☁️
+96°F
10 May
☁️
+93°F
11 May
☁️
+92°F
12 May
☁️
+95°F
13 May
☁️
+95°F
14 May
☀️
+96°F
15 May
☁️
+96°F
16 May
☁️
+97°F
17 May
☁️
+100°F
18 May
☁️
+101°F
19 May
☀️
+102°F
20 May
☁️
+101°F
21 May
☁️
+100°F
22 May
☁️
+99°F
23 May
☁️
+96°F
24 May
☁️
+95°F
25 May
☁️
+95°F
26 May
☁️
+98°F
27 May
☁️
+98°F
28 May
☁️
+93°F
29 May
☁️
+91°F
30 May
🌧️
+95°F
31 May
☁️
+96°F
In May 2023 Bangkok had 5 sunny days, 25 cloudy days, and 1 rainy days. The average maximum temperature was +97°F, with an absolute maximum of +102°F and a minimum of +91°F. The average humidity was 72%, with a maximum of 100% and a minimum of 43%. The average wind speed was 2 m/s, with a maximum of 26 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change Over the Years

This is how Bangkok climate has changed over the last 43 years.

The climate in Bangkok in May has not changed that much over the last 43 years.

The average temperature was the lowest in 1985 (+90°F) and the highest in 2020 (+93°F). The driest year was 1979 with only 810 mm of rainfall, and the wettest year was 2018 with 1630 mm.

FAQ

Frequently asked questions about the weather in Bangkok in May:

Is May a good time to visit Bangkok?

It’s always a good time to visit Bangkok, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Bangkok in May?

Absolutely, May is hot in Bangkok. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Bangkok rainy in May?

Bangkok is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Bangkok in May?

Usually, it’s not very sunny in Bangkok in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Thailand

Check out the weather for other cities in Thailand.

Monthly weather in Bangkok

Source of the data

For this page, we’ve looked at the typical weather in Bangkok, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.