Climate Overview
The climate in Petatlán is hot. The average annual temperature is 27°C and approximately 1000mm of precipitation falls per year. September is the wettest month, receiving around 281mm of rainfall. Petatlán is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are February, March, January, when temperatures can drop to 25°C.
Temperature
Petatlán has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is July, when average highs reach 30°C and the mean temperature sits around 29°C. February is the coolest month, with minimum temperatures around 25°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Petatlán is a moderately rainy area, receiving approximately 1000mm of precipitation annually, which averages out to around 83mm per month. The wettest month is September, averaging 281mm of rainfall. August and October also tend to see above-average precipitation. The driest month is April, with just 0mm. That's 281mm 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
Petatlán 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 June, 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 13km/h in winter, 15km/h in spring, 15km/h in summer, 14km/h in autumn.
Seasons
84 days until Summer
It is currently spring in Petatlán, which began on March 20, 2026. Petatlán 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 July at around 30°C, while the coldest stretch bottoms out in February near 25°C. Summer is next, beginning on June 21, 2026 — 84 days from now.
Spring
Temperatures range from 25 to 28°C. Precipitation is minimal, with only around 23mm for the entire season. Winds are generally light, averaging 15km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 27 to 30°C. Rainfall is heavy, totalling around 467mm across the season with a monthly average of 156mm. Winds are moderate at around 15km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 498mm across the season with a monthly average of 166mm. Winds are generally light, averaging 14km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 28°C. Precipitation is minimal, with only around 11mm for the entire season. Winds are generally light, averaging 13km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Petatlán 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.
