Climate Insights for Guaramirim

The climate in Guaramirim is warm and mild. The average annual temperature is 20°C and approximately 1773mm of precipitation falls per year. Guaramirim receives a notable amount of rainfall throughout the year, including during its driest month. Guaramirim 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, January, March. The coldest months are July, August, June, when temperatures can drop to 12°C.

Guaramirim sees moderate temperature variation throughout the year, ranging from 12°C to 28°C. The warmest month is February, when average highs reach 28°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 12°C and an average of 16°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between April and May, with a 3°C shift in average temperatures.

Guaramirim is a fairly wet location, receiving approximately 1773mm of precipitation annually, which averages out to around 148mm per month. The wettest month is January, averaging 254mm of rainfall. February and December also tend to see above-average precipitation. The driest month is July, with just 56mm. That's 198mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Guaramirim 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 November, 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.

It is currently winter in Guaramirim, which began on June 21, 2026. Guaramirim 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 28°C, while the coldest stretch bottoms out in July near 12°C. Spring is next, beginning on September 23, 2026 (3 days from now).

The best time to visit Guaramirim is during June and July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 77mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 28°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Guaramirim 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.