Climate Overview
The climate in San Lorenzo de Esmeraldas is hot. The average annual temperature is 26°C and approximately 3397mm of precipitation falls per year. San Lorenzo de Esmeraldas receives a notable amount of rainfall throughout the year, including during its driest month. San Lorenzo de Esmeraldas sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
San Lorenzo de Esmeraldas has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is May, when average highs reach 29°C and the mean temperature sits around 27°C. November is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows.
Precipitation
San Lorenzo de Esmeraldas is a very wet location, receiving approximately 3397mm of precipitation annually, which averages out to around 283mm per month. The wettest month is January, averaging 578mm of rainfall. May and June also tend to see above-average precipitation. The driest month is November, with just 67mm. That's 511mm less than January, 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
San Lorenzo de Esmeraldas 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 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
53 days until Autumn
It is currently summer in San Lorenzo de Esmeraldas, which began on June 21, 2026. San Lorenzo de Esmeraldas sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in May at around 29°C, while the coldest stretch bottoms out in November near 23°C. Autumn is next, beginning on September 23, 2026 — 53 days from now.
Spring
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 1099mm across the season with a monthly average of 366mm. 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 28°C. Rainfall is heavy, totalling around 739mm across the season with a monthly average of 246mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 28°C. Rainfall is heavy, totalling around 476mm across the season with a monthly average of 159mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 1084mm across the season with a monthly average of 361mm. 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 San Lorenzo de Esmeraldas 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.
