Rayong Province in Thailand sees its peak temperatures in May (31°C (88°F)) and its coolest in January (30°C (86°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from Koh Samet, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Rayong Province, especially in Koh Samet, temperatures remain consistently high year-round, with average maximums never dropping below 30°C (86°F).
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 (13 in) of rain, while December stays relatively dry with 15 mm (0.6 in). The region experiences its rainy season during May, June, July, August, September and October, when monthly rainfall can range from 232 mm (9.1 in) to 321 mm (13 in). For those seeking drier weather, December typically see minimal rainfall, never exceeding 15 mm (0.6 in).
Visitors hoping to maximize their time in the sun should consider planning their trip for March, when daylight hours are at their peak.
