Sines, Portugal - Weather and Climate
The weather in Sines, Alentejo, Portugal sees moderate temperature fluctuations over the course of a year.
Temperatures can be warm at the high end
to roughly mild at the low end.
Rainfall levels are neither high nor low, falling within a moderate range..
Now, let’s explore all the climate details to give you a complete picture.
Average maximum day and minimum night temperature
The climate in Sines experiences moderate temperature changes, with mild shifts between seasons. Average maximum daytime temperatures range from a comfortable 25°C in August, the warmest time of the year, to a moderate 16°C during cooler months like January.
At night, temperatures typically drop to an average of around 10°C during these months.Check out our detailed temperature page for more information.
Temperature ranges by month
Precipitation and rainy days
On average, Sines receives a reasonable amount of rainfall, with an annual precipitation of 580 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives moderate rainfall, averaging 85 mm of precipitation, recorded across 13 rainy days. In contrast, the drier season, July brings less rainfall, with 2.5 mm over a single rainy day. For more details, please visit our Sines Precipitation page.
The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Forecast for Sines
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Sines in Portugal
During the months of May, June, July, August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Yes, the months of June, July and August are very dry.
August has an average maximum temperature of 25°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 16°C.
December tops the wettest month list with 85 mm of rainfall.
July is the driest month with 3 mm of precipitation.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
