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Thailand weather

Weather in Thailand for May 2027

Your guide to Thailand weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Thailand at the beginning of May is 30.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.1 °C by the end of May.

    • Rain 🌧️

  • Thailand experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 323.9 mm.

    • More

  • Is May a good time to visit Thailand? check out the best time to travel to Thailand page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
0
Dry days
Average rainy days
31
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/26°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Thailand Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Moderate or heavy rain shower
31°
2
Moderate or heavy rain shower
30°
3
Moderate or heavy rain shower
30°
4
Moderate or heavy rain shower
31°
5
Patchy rain possible
30°
6
Moderate or heavy rain shower
30°
7
Moderate or heavy rain shower
30°
8
Moderate or heavy rain shower
30°
9
Patchy rain possible
30°
10
Moderate or heavy rain shower
30°
11
Moderate or heavy rain shower
30°
12
Moderate or heavy rain shower
30°
13
Heavy rain at times
30°
14
Moderate or heavy rain shower
30°
15
Moderate or heavy rain shower
31°
16
Moderate or heavy rain shower
30°
17
Moderate or heavy rain shower
30°
18
Light rain shower
30°
19
Moderate or heavy rain shower
30°
20
Moderate or heavy rain shower
29°
21
Moderate or heavy rain shower
29°
22
Moderate or heavy rain shower
29°
23
Patchy rain possible
30°
24
Patchy rain possible
30°
25
Moderate or heavy rain shower
30°
26
Moderate or heavy rain shower
29°
27
Patchy rain possible
29°
28
Moderate or heavy rain shower
29°
29
Moderate or heavy rain shower
29°
30
Moderate or heavy rain shower
29°
31
Moderate or heavy rain shower
29°

What’s the Weather Like in Thailand This May?

Discover the average temperatures and weather trends across Thailand’s cities this May.
Patchy rain possiblePhuket29 °C / 26 °CPatchy rain possibleBangkok34 °C / 28 °CPatchy rain possibleKo Samui30 °C / 27 °CPatchy rain possibleChiang Mai34 °C / 23 °CPatchy rain possibleKrabi30 °C / 26 °CPatchy rain possiblePattaya31 °C / 27 °CPatchy rain possibleKoh Phangan30 °C / 28 °CPatchy rain possibleKo Lanta29 °C / 27 °CPatchy rain possibleKoh Tao30 °C / 28 °CPatchy rain possibleHua Hin32 °C / 26 °CPatchy rain possibleChiang Rai33 °C / 22 °CPatchy rain possibleHat Yai32 °C / 24 °CMore Locations

Temperatures trend during May in Thailand

See the weather trend as well as the moving average line

May weather in Thailand day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /26° 5.9 mm 8
2 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 10.3 mm 7
3 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /25° 13.7 mm 7
4 May Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /26° 9.8 mm 8
5 May Patchy rain possible
Patchy rain possible
 30° /26° 7.4 mm 8
6 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /25° 16.5 mm 7
7 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 16.6 mm 7
8 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 6.6 mm 6
9 May Patchy rain possible
Patchy rain possible
 30° /26° 3.6 mm 7
10 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 8.4 mm 6
11 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 6.4 mm 7
12 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 12.4 mm 7
13 May Heavy rain at times
Heavy rain at times
 30° /26° 8.3 mm 7
14 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 4.9 mm 7
15 May Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /26° 7.7 mm 7
16 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 9.4 mm 6
17 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 12.9 mm 6
18 May Light rain shower
Light rain shower
 30° /26° 7.8 mm 6
19 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 8.5 mm 7
20 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 13.2 mm 6
21 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /27° 10.6 mm 6
22 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 14 mm 6
23 May Patchy rain possible
Patchy rain possible
 30° /26° 8.2 mm 6
24 May Patchy rain possible
Patchy rain possible
 30° /26° 8.6 mm 7
25 May Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 16.8 mm 6
26 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 15 mm 7
27 May Patchy rain possible
Patchy rain possible
 29° /26° 12.6 mm 6
28 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 13.4 mm 6
29 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 17.8 mm 6
30 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /27° 10.3 mm 6
31 May Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 12.3 mm 6
Next
Important Notice
Our weather forecast for Thailand 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 Thailand forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Thailand weather in May vs April vs June

Compare May weather in Thailand with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AprilMayJune
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures30°/26°29°/26°29°/26°
Rainfall154 mm324 mm289 mm
Wind16.4 km/h17.3 km/h18.5 km/h
Humidity74%76%77%
Rainy days30 days31 days30 days
Dry days0 days0 days0 days

Planning a trip to Thailand? Discover the best time to visit

Guide for Thailand in May

In May, Thailand experiences a transition in weather from the beginning to the end of the month. At the start of May, the weather in Thailand is generally warm and humid, with temperatures ranging from 28° to 35° in the central and northern regions.

The southern part of the country, including popular tourist destinations like Phuket and Krabi, experiences similar temperatures, with occasional rainfall and high humidity.

As the month progresses, the weather in Thailand becomes hotter and more humid, with temperatures rising to 30° to 37° in the central and northern regions. The southern part of the country continues to experience warm temperatures, with occasional showers and high humidity levels.

Overall, May marks the beginning of the rainy season in Thailand, especially in the southern regions, where brief but heavy downpours are common. Travelers should be prepared for sudden rain showers and plan their activities accordingly.

Despite the increased rainfall, May still offers plenty of opportunities to explore Thailand's cultural and natural attractions, with lush green landscapes and fewer crowds compared to the peak tourist season.

Thailand in May - FAQ

Is May a good time to visit Thailand?

You can travel to Thailand in May, but there are probably better months doing so, read more about the best time to visit Thailand

What are the expected maximum and minimum temperatures in Thailand during May?

During May, expect a variety of temperatures with highs around 29° and lows near 26°, suitable for diverse activities and preferences.

How much rainfall should be expected in Thailand during May?

Significant rainfall exceeding 323.9 mm is expected in Thailand during May, occurring over more than 31 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Thailand during May?

The average wind speed in Thailand during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

Thailand water temperatures in May

The average water temperature of the Andaman Sea near Thailand in May is 29.6 °C. At the beginning of May temperatures are around 30.4 °C; by the end of the month they get cooler and reach 28.8 °C.

What is the water temperature in Thailand in May?
The average water temperature in Thailand in May is 29.6 °C.
Can you swim in Thailand in May?
The sea feels almost bath-like – perfect for floating, paddle-boarding or spending hours snorkeling without a wetsuit.

What to pack to Thailand in May?

As you prepare for your trip to Thailand 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 Thailand, 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

May rainfall patterns in Thailand

Explore the daily rainfall trends and prepare for Thailands May weather 💧
Typically, Thailand has 31 rainy days in May with a total of 323.9 mm of rainfall.

UV exposure in Thailand during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Regions in Thailand
Choose a region for an accurate weather forecasts
BangkokChanthaburiChiang MaiChiang RaiChon BuriChumphonKanchanaburiKrabiMae Hong SonNakhon RatchasimaNong KhaiPhang NgaPhayaoPhetchaburiPhitsanulokPhuketPrachuap Khiri KhanRayongSamut PrakanSatunSongkhlaSukhothaiSurat ThaniTrangTratUdon Thani
Top locations in Thailand
Select a location for an accurate weather forecast
BangkokChiang MaiChiang RaiHat YaiHua HinKanchanaburiKo ChangKo LantaKo SamuiKoh LipeKoh PhanganKoh TaoKrabiPaiPattayaPhuketSamut PrakanSurat ThaniTrangUdon Thani
More Locations

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Get accurate weather forecasts for Thailand, located at latitude 7.891 and longitude 98.398. Stay updated with localized weather information tailored for Thailand.

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