Climate Overview
The climate in Altamira is hot. The average annual temperature is 27°C and approximately 1938mm of precipitation falls per year. Altamira receives a notable amount of rainfall throughout the year, including during its driest month. Altamira sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Altamira sees moderate temperature variation throughout the year, ranging from 23°C to 34°C. The warmest month is September, when average highs reach 34°C and the mean temperature sits around 28°C. July is the coolest month, with minimum temperatures around 23°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Altamira is a fairly wet location, receiving approximately 1938mm of precipitation annually, which averages out to around 161mm per month. The wettest month is March, averaging 308mm of rainfall. April and February also tend to see above-average precipitation. The driest month is July, with just 43mm. That's 265mm 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.
Wind
Altamira is relatively calm, with an average annual wind speed of 2km/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 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
92 days until Spring
It is currently winter in Altamira, which began on June 21, 2026. Altamira sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 34°C, while the coldest stretch bottoms out in July near 23°C. Spring is next, beginning on September 23, 2026 — 92 days from now.
Spring
Temperatures range from 24 to 34°C. Precipitation is moderate at around 224mm for the season, averaging 75mm per month. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 748mm across the season with a monthly average of 249mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 805mm across the season with a monthly average of 268mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 34°C. Precipitation is moderate at around 161mm for the season, averaging 54mm per month. Winds are generally light, averaging 2km/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 Altamira 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.
