7 of the most budget-friendly destinations in Europe
Discover Europe's top budget-friendly destinations including Budapest, Kotor, Krakow, and more, perfect for affordable and exciting travel.
Mértola Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mértola.
–
10-day forecastForecast
Climate overview of Mértola
Temperatures in Mértola, Alentejo, Portugal, vary greatly throughout the year. July is the hottest month at 34°C (93°F), while January is the coldest at 16°C (61°F).
Rainfall is modest, totalling around 443 mm (17 in) annually. The city experiences a distinct dry season from May to September, with very warm summers and mild winters. October tends to be the wettest month. The sunniest month is July, with 12.3 hours of sunshine per day on average.
Mértola Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mértola - and find the best time to visit.
Monthly Temperature in Mértola
The climate in Mértola is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 34°C (93°F) in July, the warmest time of the year, to a moderate 16°C (61°F) during cooler months like January.
At night, you can expect temperatures ranging from 18°C (64°F) in July to around 6°C (43°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mértola
Mértola has a relatively dry climate with low precipitation, averaging 443 mm (17 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives moderate rainfall, averaging 62 mm (2.4 in) of precipitation, recorded across 9 rainy days. In contrast, the driest month July brings less rainfall, with 1.7 mm (0.1 in) over a single rainy day. For more details, please visit our Mértola 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 Mértola
Seasonal changes in sunshine hours are quite dramatic in Mértola. While July receives considerable daily sunshine with up to 12.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Beja, Portugal (45 KM, 28 Miles).
Daily hours of sunshine
Data from: Beja, Portugal (45 KM, 28 Miles).
Daily percentage of sunshine
Data from: Beja, Portugal (45 KM, 28 Miles).
Humidity in Mértola by Month
The relative humidity is high throughout the year in Mértola.
The city experiences its highest humidity in January, reaching 81%. In July, the humidity drops to its lowest level at 50%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Beja, Portugal (45 KM, 28 Miles).
Best Time to Visit Mértola
The most comfortable overall weather for exploring Mértola is usually found in March, April, May, October and November. Conditions are generally least comfortable in July and August.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
good
Feb
very good
Mar
excellent
Apr
excellent
May
excellent
Jun
very good
Jul
very hot
Aug
very hot
Sep
very good
Oct
excellent
Nov
excellent
Dec
good
- Best overall: March, April, May, October and November
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Seasonal pattern: A distinct dry season from May to September, with very warm summers and mild winters
Frequently asked questions about the climate in Mértola
What is the best time to visit Mértola?
March, April, May, October and November typically offer the most optimal weather in Mértola. In contrast, July and August tend to have less optimal conditions. Mértola has a distinct dry season from May to September, with very warm summers and mild winters.
What temperatures can I expect in Mértola?
Daytime highs range from 16°C (61°F) in January to 34°C (93°F) in July. Nighttime lows range from 6°C (43°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Mértola get?
Annual rainfall is around 443 mm (17 in). October is the wettest month with 62 mm (2.4 in), while July is the driest with 1.7 mm (0.1 in).
How sunny is Mértola?
Mértola receives around 2,932 hours of sunshine per year. July is the sunniest month with 370 hours, while December is the cloudiest with just 148 hours. Overall, Mértola enjoys abundant sunshine.
Mértola 3-Day Forecast
Mértola on the map
Mértola is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
7 of the most budget-friendly destinations in Europe
Warm Sea Without Extreme Heat: 8 Beach Destinations With Comfortable Weather
Love warm seawater but not extreme heat? Compare eight beach destinations where the sea stays warm while daytime temperatures remain comfortable.
Alentejo, where time stands still
The quiet region is known for its rolling green hills and it is a true hiking paradise. Architectural highlights can be found in the castles, ancient monasteries or when exploring the countless charming villages.
An eco-friendly guide to Lagos travel
Lagos, Portugal is a great place to visit while being careful about your environmental footprint. Here you find some tips about environmentally places to stay, where to eat and how to get around in the area.