Climate Overview
The climate in Tietê is hot. The average annual temperature is 28°C and approximately 357mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Tietê is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: February, April, March. The coldest months are December, November, October, when temperatures can drop to 26°C.
Temperature
Tietê has relatively stable temperatures year-round, staying within a 4°C range. The warmest month is February, when average highs reach 30°C and the mean temperature sits around 29°C. December is the coolest month, with minimum temperatures around 26°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.
Precipitation
Tietê is a quite dry location, receiving approximately 357mm of precipitation annually, which averages out to around 30mm per month. The wettest month is January, averaging 33mm of rainfall. February and March also tend to see above-average precipitation. The driest month is May, with just 10mm. That's 23mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Tietê is relatively calm, with an average annual wind speed of 6km/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 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
16 days until Spring
It is currently winter in Tietê, which began on June 21, 2026. Tietê is in the Southern Hemisphere, where the seasons are reversed: spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in February at around 30°C, while the coldest stretch bottoms out in December near 26°C. Spring is next, beginning on September 23, 2026 (16 days from now).
Spring
Temperatures range from 26 to 28°C. Rainfall is relatively light, with around 97mm over the season and a monthly average of 32mm. Winds are generally light, averaging 6km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 26 to 30°C. Rainfall is relatively light, with around 98mm over the season and a monthly average of 33mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 27 to 30°C. Rainfall is relatively light, with around 70mm over the season and a monthly average of 23mm. Winds are generally light, averaging 6km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from 26 to 29°C. Rainfall is relatively light, with around 91mm over the season and a monthly average of 30mm. Winds are generally light, averaging 5km/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 Tietê 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.
