Climate Insights for Porto Murtinho

The climate in Porto Murtinho is hot. The average annual temperature is 26°C and approximately 1150mm of precipitation falls per year. Porto Murtinho receives a notable amount of rainfall throughout the year, including during its driest month. Porto Murtinho 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, December, November. The coldest months are July, June, May, when temperatures can drop to 17°C.

Porto Murtinho sees moderate temperature variation throughout the year, ranging from 17°C to 34°C. The warmest month is January, when average highs reach 34°C and the mean temperature sits around 29°C. July is the coolest month, with minimum temperatures around 17°C and an average of 21°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.

Porto Murtinho is a moderately rainy area, receiving approximately 1150mm of precipitation annually, which averages out to around 96mm per month. The wettest month is February, averaging 148mm of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 30mm. That's 117mm less than February, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Porto Murtinho is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 17km/h in winter, 17km/h in spring, 15km/h in summer, 14km/h in autumn.

It is currently autumn in Porto Murtinho, which began on March 20, 2026. Porto Murtinho 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 34°C, while the coldest stretch bottoms out in July near 17°C. Winter is next, beginning on June 21, 2026 — 87 days from now.

The best time to visit Porto Murtinho is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 44mm per month. By contrast, January can be uncomfortably hot with temperatures reaching 34°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Porto Murtinho 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.