Climate Overview
The climate in San Ignacio is warm and mild. The average annual temperature is 19°C and approximately 2028mm of precipitation falls per year. San Ignacio receives a notable amount of rainfall throughout the year, including during its driest month. San Ignacio sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
San Ignacio sees moderate temperature variation throughout the year, ranging from 13°C to 24°C. October is the warmest month, though highs remain moderate at 24°C with a mean of 20°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
San Ignacio is a very wet location, receiving approximately 2028mm of precipitation annually, which averages out to around 169mm per month. The wettest month is March, averaging 327mm of rainfall. February and January also tend to see above-average precipitation. The driest month is August, with just 60mm. That's 268mm 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
San Ignacio is relatively calm, with an average annual wind speed of 3km/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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
87 days until Summer
It is currently spring in San Ignacio, which began on September 23, 2026. San Ignacio sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in October at around 24°C, while the coldest stretch bottoms out in July near 13°C. Summer is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 14 to 24°C. Rainfall is heavy, totalling around 384mm across the season with a monthly average of 128mm. Winds are generally light, averaging 4km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 16 to 24°C. Rainfall is heavy, totalling around 764mm across the season with a monthly average of 255mm. 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 24°C. Rainfall is heavy, totalling around 647mm across the season with a monthly average of 216mm. 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 22°C. Precipitation is moderate at around 233mm for the season, averaging 78mm per month. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit San Ignacio is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 74mm per month. By contrast, October can be uncomfortably hot with temperatures reaching 24°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for San Ignacio 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.
