May weather forecast and climate
Hua Hin, Thailand

Beautiful blue sky, clear water, and rocks on the white sandy beach of Sainoi in Hua Hin, Thailand, with a beautiful forest mountain
Beautiful blue sky, clear water, and rocks on the white sandy beach of Sainoi in Hua Hin, Thailand, with a beautiful forest mountain
May, the last month of the spring, in Hua Hin, is another hot month, with average temperature fluctuating between 26°C (78.8°F) and 33.6°C (92.5°F).

Temperature

April and May, with an average high-temperature of 33.6°C (92.5°F), are warmest months.

Humidity

In May, the average relative humidity in Hua Hin is 74%.

Rainfall

In May, in Hua Hin, the rain falls for 13 days. Throughout May, 108.9mm (4.3") of precipitation is accumulated. In Hua Hin, during the entire year, the rain falls for 118 days and collects up to 955.1mm (37.6") of precipitation.

Sea temperature

Months with the warmest seawater in Hua Hin are April through June, with an average sea temperature of 30°C (86°F). For swimming, other intense water activities, temperature above 30°C (86°F) is arguably unpleasant, as the water cooling effect is missing.

Daylight

In Hua Hin, the average length of the day in May is 12.7h.

Sunshine

The average sunshine in May is 7h.

UV index

Months with the highest UV index in Hua Hin, Thailand, are February through October, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
The daily maximum UV index of 12 interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the warmest month in Hua Hin?

Warmest months are April and May, with an average high-temperature of 33.6°C (92.5°F).

What is the temperature in May in Hua Hin?

In Hua Hin, Thailand, in May, the average high-temperature is 33.6°C (92.5°F), and the average low-temperature is 26°C (78.8°F).

What is the average humidity in May in Hua Hin?

In Hua Hin, the average relative humidity in May is 74%.

How much does it rain in Hua Hin in May?

In Hua Hin, Thailand, in May, it is raining for 13 days, with typically 108.9mm (4.3") of accumulated precipitation.

What months are the sea warmest in Hua Hin?

Months with the warmest seawater in Hua Hin are April through June, with an average sea temperature of 30°C (86°F). The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

What is the sea water temperature in May in Hua Hin?

In May, the average sea temperature is 30°C (86°F). The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

How many hours of daylight does Hua Hin have in May?

The average length of the day in May is 12.7h.

How long on average sun shines in May in Hua Hin?

In May, the average sunshine in Hua Hin is 7h.

When is the highest UV index in Hua Hin?

February through October, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index intensity in May in Hua Hin?

In May, the average daily maximum UV index in Hua Hin is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in May - Hua Hin, Thailand
  • Average high temperature in May: 33.6°C

Warmest months (with the highest average high temperature) are April and May (33.6°C).
The month with the lowest average high temperature is December (29.5°C).

  • Average low temperature in May: 26°C

The month with the highest average low temperature is May (26°C).
The coldest month (with the lowest average low temperature) is January (22.2°C).

Average humidity in May - Hua Hin, Thailand
  • Average humidity in May: 74%

The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is December (67%).

Average rainfall in May - Hua Hin, Thailand
  • Average rainfall in May: 108.9mm

The wettest month (with the highest rainfall) is October (246.2mm).
The driest month (with the lowest rainfall) is December (7.9mm).

Average rainfall days in May - Hua Hin, Thailand
  • Average rainfall days in May: 13 days

The month with the highest number of rainy days is August (18 days).
Months with the lowest number of rainy days are January, February, March and December (2 days).

Average sea temperature in May - Hua Hin, Thailand
  • Average sea temperature in May: 30°C

Best months for swimming (with the highest average sea temperature) are April, May and June (30°C).
Coldest months (with the lowest average sea temperature) are January, February and December (28°C).

Average daylight in May / Average sunshine in May - Hua Hin, Thailand
  • Average daylight in May: 12.7h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in May: 7h

Months with most sunshine are January, February, March and December (Average sunshine: 9h).
Months with least sunshine are June, July, August and September (Average sunshine: 5).

Average UV index in May - Hua Hin, Thailand
  • Average UV index in May: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 9).

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