Climate Overview
The climate in Ourém is hot. The average annual temperature is 27°C and approximately 2040mm of precipitation falls per year. March is the wettest month, receiving around 442mm of rainfall. Ourém sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Ourém sees moderate temperature variation throughout the year, ranging from 23°C to 34°C. The warmest month is October, when average highs reach 34°C and the mean temperature sits around 28°C. July is the coolest month, with minimum temperatures around 23°C and an average of 27°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.
Precipitation
Ourém is a very wet location, receiving approximately 2040mm of precipitation annually, which averages out to around 170mm per month. The wettest month is March, averaging 442mm of rainfall. April and February also tend to see above-average precipitation. The driest month is September, with just 23mm. That's 419mm 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
Ourém is mildly breezy, with an average annual wind speed of 14km/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 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.
Seasons
88 days until Winter
It is currently autumn in Ourém, which began on March 20, 2026. Ourém 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 34°C, while the coldest stretch bottoms out in July near 23°C. Winter is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from 23 to 34°C. Rainfall is relatively light, with around 104mm over the season and a monthly average of 35mm. Winds are moderate at around 16km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 696mm across the season with a monthly average of 232mm. Winds are generally light, averaging 14km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 1044mm across the season with a monthly average of 348mm. Winds are generally light, averaging 12km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 32°C. Precipitation is moderate at around 196mm for the season, averaging 65mm per month. Winds are generally light, averaging 13km/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 Ourém 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.
