Climate Overview
The climate in Tía Juana is hot. The average annual temperature is 29°C and approximately 1770mm of precipitation falls per year. October is the wettest month, receiving around 224mm of rainfall. Tía Juana is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, March, September. The coldest months are January, November, December, when temperatures can drop to 25°C.
Temperature
Tía Juana has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is August, when average highs reach 33°C and the mean temperature sits around 30°C. January is the coolest month, with minimum temperatures around 25°C and an average of 29°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Tía Juana is a fairly wet location, receiving approximately 1770mm of precipitation annually, which averages out to around 147mm per month. The wettest month is October, averaging 224mm of rainfall. May and June also tend to see above-average precipitation. The driest month is February, with just 19mm. That's 205mm less than October, 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
Tía Juana is mildly breezy, with an average annual wind speed of 12km/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 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, 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 4km/h gap between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Tía Juana, which began on March 20, 2026. Tía Juana 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 33°C, while the coldest stretch bottoms out in January near 25°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 26 to 33°C. Rainfall is heavy, totalling around 419mm across the season with a monthly average of 140mm. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 33°C. Rainfall is heavy, totalling around 625mm across the season with a monthly average of 208mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 33°C. Rainfall is heavy, totalling around 630mm across the season with a monthly average of 210mm. Winds are generally light, averaging 12km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 33°C. Rainfall is relatively light, with around 96mm over the season and a monthly average of 32mm. 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 Tía Juana 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.
