Oleiros Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Oleiros.
Climate overview of Oleiros
Temperatures in Oleiros, Centro Region, Portugal, vary greatly throughout the year. August is the hottest month at 30°C (86°F), while January is the coldest at 13°C (55°F).
Oleiros sees a moderate amount of rainfall, totalling around 988 mm (39 in) per year. It experiences a distinct dry season from June to August, with very warm summers and mild winters, creating some seasonal variation. Sunshine peaks in July, when the city sees around 10.2 hours of sunshine per day.
Oleiros Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Oleiros - and find the best time to visit.
Monthly Temperature in Oleiros
The climate in Oleiros is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 30°C (86°F) in August, the warmest time of the year, to a moderate 13°C (55°F) during cooler months like January.
At night, you can expect temperatures ranging from 16°C (61°F) in August to around 4°C (39°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Oleiros
Generally, Oleiros receives mid-range precipitation levels, with 988 mm (39 in) annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives high rainfall, averaging 138 mm (5.4 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month July brings less rainfall, with 11 mm (0.4 in) over 5 rainy days. For more details, please visit our Oleiros Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Oleiros
Seasonal changes in sunshine hours are quite dramatic in Oleiros. While July receives considerable daily sunshine with up to 10.2 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Oleiros by Month
The relative humidity is high throughout the year in Oleiros.
The city experiences its highest humidity in January, reaching 78%. In July, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Oleiros
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June and September
- Warmest weather: July and August
- Most sunshine: July and August
- Fewest rainy days: July and August
- Seasonal pattern: A distinct dry season from June to August, with very warm summers and mild winters
Frequently asked questions about the climate in Oleiros
What is the best time to visit Oleiros?
May, June and September typically offer the most optimal weather in Oleiros. In contrast, January and December tend to have less optimal conditions. Oleiros has a distinct dry season from June to August, with very warm summers and mild winters.
What temperatures can I expect in Oleiros?
Daytime highs range from 13°C (55°F) in January to 30°C (86°F) in August. Nighttime lows range from 4°C (39°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Oleiros get?
Annual rainfall is around 988 mm (39 in). October is the wettest month with 138 mm (5.4 in), while July is the driest with 11 mm (0.4 in).
How sunny is Oleiros?
Oleiros receives around 2,502 hours of sunshine per year. July is the sunniest month with 305 hours, while December is the cloudiest with just 138 hours. Overall, Oleiros enjoys abundant sunshine.
Oleiros 3-Day Forecast
Oleiros 3-Day Forecast
Oleiros on the map
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