Climate Overview
The climate in Novo Hamburgo is warm and mild. The average annual temperature is 19°C and approximately 1889mm of precipitation falls per year. Novo Hamburgo receives a notable amount of rainfall throughout the year, including during its driest month. Novo Hamburgo 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: January, February, December. The coldest months are July, June, August, when temperatures can drop to 10°C.
Temperature
Novo Hamburgo sees moderate temperature variation throughout the year, ranging from 10°C to 29°C. The warmest month is January, when average highs reach 29°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 10°C and an average of 14°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.
Precipitation
Novo Hamburgo is a fairly wet location, receiving approximately 1889mm of precipitation annually, which averages out to around 157mm per month. The wettest month is January, averaging 193mm of rainfall. October and May also tend to see above-average precipitation. The driest month is August, with just 106mm. That's 87mm less than January, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Novo Hamburgo is mildly breezy, with an average annual wind speed of 13km/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 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
89 days until Winter
It is currently autumn in Novo Hamburgo, which began on March 20, 2026. Novo Hamburgo 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 January at around 29°C, while the coldest stretch bottoms out in July near 10°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 13 to 26°C. Rainfall is heavy, totalling around 548mm across the season with a monthly average of 183mm. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 18 to 29°C. Rainfall is heavy, totalling around 482mm across the season with a monthly average of 161mm. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 12 to 27°C. Rainfall is heavy, totalling around 472mm across the season with a monthly average of 157mm. Winds are generally light, averaging 12km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 10 to 21°C. Rainfall is heavy, totalling around 387mm across the season with a monthly average of 129mm. Winds are generally light, averaging 12km/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 Novo Hamburgo 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.
