Climate Overview
The climate in Ahualulco de Mercado is warm and mild. The average annual temperature is 20°C and approximately 842mm of precipitation falls per year. July is the wettest month, receiving around 231mm of rainfall. Ahualulco de Mercado is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, June. The coldest months are January, February, March, when temperatures can drop to 7°C.
Temperature
Temperatures in Ahualulco de Mercado vary considerably across the year, with a 26°C difference between the coldest and warmest months. The warmest month is May, when average highs reach 33°C and the mean temperature sits around 23°C. January is the coolest month, with minimum temperatures around 7°C and an average of 15°C. On average, daily temperatures fluctuate by about 15°C between overnight lows and afternoon highs. The sharpest temperature change occurs between January and February, with a 3°C shift in average temperatures.
Precipitation
Ahualulco de Mercado is a moderately rainy area, receiving approximately 842mm of precipitation annually, which averages out to around 70mm per month. The wettest month is July, averaging 231mm of rainfall. August and September also tend to see above-average precipitation. The driest month is January, with just 2mm. That's 229mm less than July, 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
Ahualulco de Mercado is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
63 days until Autumn
It is currently summer in Ahualulco de Mercado, which began on June 21, 2026. Ahualulco de Mercado 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 33°C, while the coldest stretch bottoms out in January near 7°C. Autumn is next, beginning on September 23, 2026 — 63 days from now.
Spring
Temperatures range from 10 to 33°C. Precipitation is minimal, with only around 46mm for the entire season. Winds are generally light, averaging 2km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 17 to 30°C. Rainfall is heavy, totalling around 565mm across the season with a monthly average of 188mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 13 to 28°C. Precipitation is moderate at around 220mm for the season, averaging 73mm per month. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 7 to 27°C. Precipitation is minimal, with only around 12mm for the entire season. Winds are generally light, averaging 2km/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 Ahualulco de Mercado is during February, March, April, May, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 18mm per month. By contrast, January can be quite cold with temperatures dropping to 7°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 Ahualulco de Mercado 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.