Climate Insights for Monteiro

The climate in Monteiro is hot. The average annual temperature is 25°C and approximately 286mm of precipitation falls per year. March is the wettest month, receiving around 75mm of rainfall. Monteiro sits near the equator, so seasonal temperature differences are minimal throughout the year.

Monteiro sees moderate temperature variation throughout the year, ranging from 18°C to 33°C. The warmest month is November, when average highs reach 33°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 18°C and an average of 24°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs.

Monteiro is a quite dry location, receiving approximately 286mm of precipitation annually, which averages out to around 24mm per month. The wettest month is March, averaging 75mm of rainfall. April and February also tend to see above-average precipitation. The driest month is October, with just 1mm. That's 74mm less than March, 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.

Monteiro is moderately windy, with an average annual wind speed of 21km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 24km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months.

It is currently autumn in Monteiro, which began on March 20, 2026. Monteiro sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in November at around 33°C, while the coldest stretch bottoms out in August near 18°C. Winter is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Monteiro is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 15mm per month. By contrast, November can be uncomfortably hot with temperatures reaching 33°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Monteiro 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.