Climate Overview
The climate in Miahuatlán de Porfirio Díaz is temperate. The average annual temperature is 18°C and approximately 3210mm of precipitation falls per year. September is the wettest month, receiving around 636mm of rainfall. Miahuatlán de Porfirio Díaz is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, March, May. The coldest months are January, December, February, when temperatures can drop to 10°C.
Temperature
Miahuatlán de Porfirio Díaz sees moderate temperature variation throughout the year, ranging from 10°C to 26°C. The warmest month is April, when average highs reach 26°C and the mean temperature sits around 19°C. January is the coolest month, with minimum temperatures around 10°C and an average of 16°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs.
Precipitation
Miahuatlán de Porfirio Díaz is a very wet location, receiving approximately 3210mm of precipitation annually, which averages out to around 267mm per month. The wettest month is September, averaging 636mm of rainfall. June and August also tend to see above-average precipitation. The driest month is December, with just 10mm. That's 626mm 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.
Wind
Miahuatlán de Porfirio Díaz is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.
Seasons
87 days until Winter
It is currently autumn in Miahuatlán de Porfirio Díaz, which began on September 23, 2026. Miahuatlán de Porfirio Díaz 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 April at around 26°C, while the coldest stretch bottoms out in January near 10°C. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 12 to 26°C. Rainfall is heavy, totalling around 417mm across the season with a monthly average of 139mm. Winds are generally light, averaging 5km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 14 to 24°C. Rainfall is heavy, totalling around 1791mm across the season with a monthly average of 597mm. Winds are generally light, averaging 5km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 12 to 24°C. Rainfall is heavy, totalling around 961mm across the season with a monthly average of 320mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 10 to 25°C. Precipitation is minimal, with only around 40mm for the entire season. Winds are generally light, averaging 6km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Miahuatlán de Porfirio Díaz is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 18mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 26°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Miahuatlán de Porfirio Díaz 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.
