Climate Overview
The climate in São Miguel is hot. The average annual temperature is 26°C and approximately 1327mm of precipitation falls per year. April is the wettest month, receiving around 228mm 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 March, when average highs reach 29°C and the mean temperature sits around 27°C. July 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 1327mm of precipitation annually, which averages out to around 111mm per month. The wettest month is April, averaging 228mm of rainfall. March and June also tend to see above-average precipitation. The driest month is November, with just 24mm. That's 204mm less than April, 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 relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.
Seasons
89 days until Spring
It is currently winter in São Miguel, which began on June 21, 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 March at around 29°C, while the coldest stretch bottoms out in July near 24°C. Spring is next, beginning on September 23, 2026 — 89 days from now.
Spring
Temperatures range from 24 to 28°C. Rainfall is relatively light, with around 85mm over the season and a monthly average of 28mm. Winds are generally light, averaging 8km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 26 to 28°C. Precipitation is moderate at around 297mm for the season, averaging 99mm per month. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 573mm across the season with a monthly average of 191mm. Winds are generally light, averaging 6km/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 372mm across the season with a monthly average of 124mm. Winds are generally light, averaging 8km/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.
