Climate Overview
The climate in São Miguel is hot. The average annual temperature is 26°C and approximately 1272mm of precipitation falls per year. March is the wettest month, receiving around 207mm of rainfall. São Miguel sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
São Miguel has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is February, when average highs reach 29°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.
Precipitation
São Miguel is a fairly wet location, receiving approximately 1272mm of precipitation annually, which averages out to around 106mm per month. The wettest month is March, averaging 207mm of rainfall. April and May also tend to see above-average precipitation. The driest month is November, with just 19mm. That's 187mm 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
São Miguel is moderately windy, with an average annual wind speed of 28km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 33km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in March, with average winds dropping to 23km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 31km/h in winter, 30km/h in spring, 26km/h in summer, 24km/h in autumn.
Seasons
87 days until Winter
It is currently autumn in São Miguel, which began on March 20, 2026. São Miguel sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 29°C, while the coldest stretch bottoms out in August near 24°C. Winter is next, beginning on June 21, 2026 — 87 days from now.
Spring
Temperatures range from 24 to 28°C. Rainfall is relatively light, with around 77mm over the season and a monthly average of 26mm. Winds are strong, averaging 30km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 26 to 29°C. Precipitation is moderate at around 232mm for the season, averaging 77mm per month. Winds are strong, averaging 26km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 28°C. Rainfall is heavy, totalling around 582mm across the season with a monthly average of 194mm. Winds are moderate at around 24km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 27°C. Rainfall is heavy, totalling around 381mm across the season with a monthly average of 127mm. Winds are strong, averaging 31km/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 São Miguel 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.
