Climate Overview
The climate in Santa Maria Maior is warm and mild. The average annual temperature is 18°C and approximately 475mm of precipitation falls per year. November is the wettest month, receiving around 69mm of rainfall. Santa Maria Maior is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are February, March, April, when temperatures can drop to 14°C.
Temperature
Santa Maria Maior has relatively stable temperatures year-round, staying within a 9°C range. August is the warmest month, though highs remain moderate at 23°C with a mean of 22°C. February is the coolest month, with minimum temperatures around 14°C and an average of 15°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between October and November, with a 2°C shift in average temperatures.
Precipitation
Santa Maria Maior is a relatively dry area, receiving approximately 475mm of precipitation annually, which averages out to around 40mm per month. The wettest month is November, averaging 69mm of rainfall. October and April also tend to see above-average precipitation. The driest month is August, with just 12mm. That's 57mm less than November, 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
Santa Maria Maior is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 4km/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
93 days until Autumn
It is currently summer in Santa Maria Maior, which began on June 21, 2026. Santa Maria Maior is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 23°C, while the coldest stretch bottoms out in February near 14°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 14 to 18°C. Rainfall is relatively light, with around 133mm over the season and a monthly average of 44mm. Winds are generally light, averaging 5km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 18 to 23°C. Rainfall is relatively light, with around 59mm over the season and a monthly average of 20mm. Winds are generally light, averaging 4km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 17 to 23°C. Rainfall is relatively light, with around 148mm over the season and a monthly average of 49mm. Winds are generally light, averaging 4km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 14 to 18°C. Rainfall is relatively light, with around 135mm over the season and a monthly average of 45mm. Winds are generally light, averaging 5km/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 Santa Maria Maior is during January, February, March, April, May, June, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 40mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Santa Maria Maior 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.
