Climate Overview
The climate in Montemor-o-Novo is temperate. The average annual temperature is 17°C and approximately 480mm of precipitation falls per year. March is the wettest month, receiving around 74mm of rainfall. Montemor-o-Novo is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 6°C.
Temperature
Temperatures in Montemor-o-Novo vary considerably across the year, with a 26°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 32°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 6°C and an average of 10°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.
Precipitation
Montemor-o-Novo is a relatively dry area, receiving approximately 480mm of precipitation annually, which averages out to around 40mm per month. The wettest month is March, averaging 74mm of rainfall. October and April also tend to see above-average precipitation. The driest month is August, with just 1mm. That's 72mm 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
Montemor-o-Novo is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Montemor-o-Novo, which began on March 20, 2026. Montemor-o-Novo 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 32°C, while the coldest stretch bottoms out in January near 6°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 8 to 25°C. Precipitation is moderate at around 173mm for the season, averaging 58mm per month. Winds are moderate at around 18km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 15 to 32°C. Precipitation is minimal, with only around 16mm for the entire season. Winds are moderate at around 18km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 10 to 28°C. Rainfall is relatively light, with around 144mm over the season and a monthly average of 48mm. Winds are moderate at around 16km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 6 to 16°C. Rainfall is relatively light, with around 147mm over the season and a monthly average of 49mm. Winds are moderate at around 16km/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 Montemor-o-Novo is during April, May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 30mm per month. By contrast, January can be quite cold with temperatures dropping to 6°C. 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 Montemor-o-Novo 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.
