Climate Insights for Hat Yai

The climate in Hat Yai is cold. The average annual temperature is -44°C and approximately 28mm of precipitation falls per year. March is the wettest month, receiving around 7mm of rainfall. Hat Yai sits near the equator, so seasonal temperature differences are minimal throughout the year. Light snow can occur between February and December.

Temperatures in Hat Yai vary considerably across the year, with a 31°C difference between the coldest and warmest months. February is the warmest month, though highs remain moderate at -25°C with a mean of -26°C. September brings the harshest conditions, with lows dropping to -56°C and an average temperature of -52°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between February and March, with a 10°C shift in average temperatures.

Hat Yai is a quite dry location, receiving approximately 28mm of precipitation annually, which averages out to around 2mm per month. The wettest month is March, averaging 7mm of rainfall. December and September also tend to see above-average precipitation. The driest month is May, with just 0mm. 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. Light snowfall can occur between February and December, totalling around 28cm annually. March is the snowiest month with approximately 7cm.

Hat Yai is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.

It is currently summer in Hat Yai, which began on June 21, 2026. Hat Yai sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around -25°C, while the coldest stretch bottoms out in September near -56°C. Autumn is next, beginning on September 23, 2026 — 16 days from now.

The table below shows monthly climate averages for Hat Yai 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.