Climate Chart of Chiang Rai, Thailand

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

Climate overview

Temperature

The monthly mean temperature reaches its coolest point in January, at 20.4 °C, and its warmest in May, at 27.8 °C. These are monthly averages, not daytime maximum temperatures, so they describe the broad temperature pattern rather than the full range visitors may experience within a day. Across the calendar-month means, the unweighted mean is 24.9 °C. This provides a broad reference for the year, but does not mean every month—or every day—will feel like that figure.

Rain

Mean daily rainfall is lowest in February, at 0.64 mm/day, and highest in August, at 10.40 mm/day. These are daily averages for each month, not monthly rainfall totals; the lower average does not guarantee rain-free days, and the higher one does not show how often rain falls. The unweighted mean across monthly mean daily rainfall figures is 4.34 mm/day. Treat it as a year-wide reference rather than a forecast for a particular date or a measure of rainfall frequency.

Sunshine

Mean daily sunshine duration is highest in March, at 10.63 hours/day, and lowest in August, at 7.29 hours/day. The unweighted mean of the monthly figures is 9.29 hours/day per day. These averages can help with outdoor planning, but sunshine duration is not the same as day length and does not guarantee clear skies on a given day.

Best Travel Time Guide for Chiang Rai, Thailand: Ideal Seasons and Weather Insights

For visitors prioritising lower average rainfall, February is the conditional option to consider, when mean daily rainfall is 0.64 mm/day. This is an average, not a promise of dry weather or a measure of how frequently rain occurs, so keep plans flexible. Plan for possible rain in August, when mean daily rainfall reaches 10.40 mm/day; a light rain layer or an adaptable outdoor schedule may be useful. The figure is a daily mean, not a monthly total or a prediction for each day.

If cooler monthly averages are your priority, January has the lowest monthly mean temperature, 20.4 °C. For daylight outdoor planning, mean daily sunshine duration is highest in March at 10.63 hours/day, and lowest in August at 7.29 hours/day; these sunshine averages do not indicate day length or guarantee the sky conditions for your visit.

Climate Data Overview for Chiang Rai, Thailand

Explore the comprehensive climate data for Chiang Rai, Thailand. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

• See also climate change in Chiang Rai
• Explore the climate in Thailand