Climate Insights for Amatlán

The climate in Amatlán is warm and mild. The average annual temperature is 25°C and approximately 1230mm of precipitation falls per year. September is the wettest month, receiving around 207mm of rainfall. Amatlán is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, June, August. The coldest months are January, December, February, when temperatures can drop to 15°C.

Amatlán sees moderate temperature variation throughout the year, ranging from 15°C to 34°C. The warmest month is May, when average highs reach 34°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 15°C and an average of 19°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.

Amatlán is a fairly wet location, receiving approximately 1230mm of precipitation annually, which averages out to around 102mm per month. The wettest month is September, averaging 207mm of rainfall. October and June also tend to see above-average precipitation. The driest month is February, with just 22mm. That's 184mm less than September, 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.

Amatlán is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 12km/h in winter, 15km/h in spring, 15km/h in summer, 12km/h in autumn.

It is currently spring in Amatlán, which began on March 20, 2026. Amatlán 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 May at around 34°C, while the coldest stretch bottoms out in January near 15°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Amatlán is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 43mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 34°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Amatlán 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.