Climate and Weather of Rayong Province, Thailand

In Thailand you have several regions, one of which is called Rayong Province. The most popular city in this region is Koh Samet, whose climate data we'll examine to provide you with an overview of what weather to expect in Rayong Province. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

High temperatures are a constant in Rayong Province, especially in Koh Samet, with average maximums staying above 30°C all year long.

Rayong Province reaches its peak temperature in May, hitting 31°C, while December brings cooler conditions with daytime highs of 30°C.

The peak heat season generally takes place in April, May and June.

Precipitation in Rayong Province varies considerably throughout the year. The wettest conditions occur in September with 321 mm of rain, while December stays relatively dry with 15 mm. The region experiences its rainy season during May, June, July, August, September and October, when monthly rainfall can range from 232 mm to 321 mm. For those seeking drier weather, December typically see minimal rainfall, never exceeding 15 mm.

Visitors hoping to maximize their time in the sun should consider planning their trip for March, when daylight hours are at their peak.

Select a Month of Interest

Check the conditions for any month of the year.

Interested in the detailed Weather and Climate of Rayong Province, Thailand?

Please select a city below the map you wish to travel to, or the one closest to your destination. Each selected city will show you the following graphs:
1. Average minimum and maximum temperature over the year
2. Average monthly precipitation over the year (rainfall, snow)
3. Average monthly hours of sunshine over the year
On certain pages we also offer other historical climate data like humidity wind speed and water temperature.