Climate Overview
The climate in Chaiya is hot. The average annual temperature is 28°C and approximately 1712mm of precipitation falls per year. Chaiya receives a notable amount of rainfall throughout the year, including during its driest month. Chaiya sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Chaiya has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is May, when average highs reach 31°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 26°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.
Precipitation
Chaiya is a fairly wet location, receiving approximately 1712mm of precipitation annually, which averages out to around 143mm per month. The wettest month is November, averaging 366mm of rainfall. December and October also tend to see above-average precipitation. The driest month is March, with just 35mm. That's 330mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Chaiya is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in October, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 22km/h in winter, 19km/h in spring, 18km/h in summer, 17km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Chaiya, which began on March 20, 2026. Chaiya sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in May at around 31°C, while the coldest stretch bottoms out in January near 26°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 27 to 31°C. Precipitation is moderate at around 286mm for the season, averaging 95mm per month. Winds are moderate at around 19km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 30°C. Precipitation is moderate at around 244mm for the season, averaging 81mm per month. Winds are moderate at around 18km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 751mm across the season with a monthly average of 250mm. Winds are moderate at around 17km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 431mm across the season with a monthly average of 144mm. Winds are moderate at around 22km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Chaiya based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
