Climate Overview
The climate in Iquitos is hot. The average annual temperature is 26°C and approximately 2866mm of precipitation falls per year. Iquitos receives a notable amount of rainfall throughout the year, including during its driest month. Iquitos sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Iquitos has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is September, when average highs reach 31°C and the mean temperature sits around 26°C. July is the coolest month, with minimum temperatures around 22°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Iquitos is a very wet location, receiving approximately 2866mm of precipitation annually, which averages out to around 239mm per month. The wettest month is March, averaging 338mm of rainfall. December and January also tend to see above-average precipitation. The driest month is August, with just 157mm. That's 180mm less than March, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Iquitos is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 1km/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
3 days until Winter
It is currently autumn in Iquitos, which began on March 20, 2026. Iquitos 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 31°C, while the coldest stretch bottoms out in July near 22°C. Winter is next, beginning on June 21, 2026 — 3 days from now.
Spring
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 633mm across the season with a monthly average of 211mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 821mm across the season with a monthly average of 274mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 853mm across the season with a monthly average of 284mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 31°C. Rainfall is heavy, totalling around 560mm across the season with a monthly average of 187mm. Winds are generally light, averaging 1km/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 Iquitos 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.
