Climate Insights for Lan Sak

The climate in Lan Sak is temperate. The average annual temperature is 17°C and approximately 226mm of precipitation falls per year. June is the wettest month, receiving around 33mm of rainfall. Lan Sak is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, April, March. The coldest months are November, October, December, when temperatures can drop to 4°C.

Lan Sak sees moderate temperature variation throughout the year, ranging from 4°C to 21°C. August is the warmest month, though highs remain moderate at 21°C with a mean of 17°C. November is the coolest month, with minimum temperatures around 4°C and an average of 11°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between August and September, with a 7°C shift in average temperatures.

Lan Sak is a quite dry location, receiving approximately 226mm of precipitation annually, which averages out to around 19mm per month. The wettest month is February, averaging 33mm of rainfall. March and April also tend to see above-average precipitation. The driest month is September, with just 0mm. That's 33mm less than February, 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.

Lan Sak is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8km/h in winter, 7km/h in spring, 5km/h in summer, 6km/h in autumn.

It is currently summer in Lan Sak, which began on June 21, 2026. Lan Sak is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 21°C, while the coldest stretch bottoms out in November near 4°C. Autumn is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Lan Sak is during January, February, March, April, May, June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 28mm per month. By contrast, November can be quite cold with temperatures dropping to 4°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Lan Sak 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.