Climate Overview
The climate in Portovelo is temperate. The average annual temperature is 18°C and approximately 5238mm of precipitation falls per year. Portovelo receives a notable amount of rainfall throughout the year, including during its driest month. Portovelo sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Portovelo has relatively stable temperatures year-round, staying within a 10°C range. September is the warmest month, though highs remain moderate at 23°C with a mean of 18°C. July is the coolest month, with minimum temperatures around 13°C and an average of 17°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Portovelo is a very wet location, receiving approximately 5238mm of precipitation annually, which averages out to around 437mm per month. The wettest month is March, averaging 810mm of rainfall. April and February also tend to see above-average precipitation. The driest month is July, with just 134mm. That's 676mm 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
Portovelo is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.
Seasons
2 days until Spring
It is currently winter in Portovelo, which began on June 21, 2026. Portovelo 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 23°C, while the coldest stretch bottoms out in July near 13°C. Spring is next, beginning on September 23, 2026 (2 days from now).
Spring
Temperatures range from 14 to 23°C. Rainfall is heavy, totalling around 821mm across the season with a monthly average of 274mm. Winds are generally light, averaging 4km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 15 to 22°C. Rainfall is heavy, totalling around 1902mm across the season with a monthly average of 634mm. Winds are generally light, averaging 3km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 15 to 23°C. Rainfall is heavy, totalling around 2009mm across the season with a monthly average of 670mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 13 to 23°C. Rainfall is heavy, totalling around 506mm across the season with a monthly average of 169mm. Winds are generally light, averaging 5km/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 Portovelo 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.
