São Sebastião Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in São Sebastião

São Sebastião temperature today is 8°, feels like 7°, with a humidity level of 81% and wind at 6.12 km/h. Rain chance today is 0%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in São Sebastião: expect a high of 18° and a low of 11°, with light rain. Rain chance tomorrow is 100%.

overcast clouds
overcast clouds
H: 8° L: 8°
Feels like
AQI: (/5)
Humidity
81%
Dew 5°
Wind speed
6.12 km/h
SW · G8.82
Pressure
1010 hPa
Visibility
10 km
Weather Summary
Currently in São Sebastião, expect varied conditions with cold temperatures around 8°. Winds are a light breeze. High humidity may make it feel uncomfortable.
Precipitation Probability
0%
04
0%
07
0%
10
0%
13
0%
16
0%
19
30%
22
24%
01
100%
04
100%
07
100%
10
100%
13
100%
16
100%
19
100%
22
100%
01
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
Fri
04:00
10°
 
16°
 
18°
 
20°
Fri
16:00
16°
 
14°
 
12°
 
13°
Sat
04:00
13°
 
15°
 
18°
 
18°
Sat
16:00
15°
 
11°
 
10°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:25
Sunset
Sunset
20:31
Moon Phase
Last Quarter (36%)
Timezone: GMT+05:30
Last updated: May 8, 2026 7:17 AM · Data refreshes every 5 min
Location Info
Latitude
Latitude
39.150002
Longitude
Longitude
-8.000000
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More about São Sebastião
Content curated by the NearWeather editorial team · Updated periodically

Climate and Weather in São Sebastião, Portugal

São Sebastião is a charming coastal town located in the western part of Portugal. It is known for its picturesque beaches, historical architecture, and vibrant culture. The town experiences a Mediterranean climate, characterized by mild winters and warm summers. The following guide provides detailed information about the climate and weather in São Sebastião throughout the year.

Temperature

The temperature in São Sebastião varies throughout the year, but it generally remains pleasant and mild. Summers are warm, with average high temperatures ranging from 25 to 30 degrees Celsius (77 to 86 degrees Fahrenheit). Winters are mild, with average temperatures ranging from 10 to 15 degrees Celsius (50 to 59 degrees Fahrenheit). The months of July and August are the hottest, while January and February are the coldest.

Here is a table summarizing the average monthly temperatures in São Sebastião:

Month Average High (°C) Average Low (°C)
January 14 7
February 15 8
March 17 9
April 18 10
May 20 12
June 23 15
July 26 17
August 26 18
September 25 16
October 22 13
November 18 10
December 15 8

As you can see from the table, the temperatures in São Sebastião are comfortable for outdoor activities throughout the year. However, it is important to note that temperatures can occasionally reach higher or lower extremes, so it is advisable to check the weather forecast before planning any outdoor activities.

Precipitation

São Sebastião experiences a moderate amount of rainfall, with the wettest months occurring during the winter season. The town receives an average of 700 to 900 millimeters (27 to 35 inches) of rainfall per year. The months of November, December, and January receive the highest amount of precipitation, while July and August are the driest months.

Here is a table summarizing the average monthly precipitation in São Sebastião:

Month Precipitation (mm)
January 100
February 80
March 70
April 60
May 40
June 20
July 10
August 10
September 20
October 60
November 100
December 110

While the winter months may experience more rainfall, it is usually not excessive and does not hinder outdoor activities. The summer months, on the other hand, are generally dry and perfect for enjoying the beautiful beaches and outdoor attractions in São Sebastião.

Wind

São Sebastião experiences moderate wind speeds throughout the year. The prevailing winds come from the northwest, providing a refreshing breeze during the summer months. The average wind speed ranges from 10 to 20 kilometers per hour (6 to 12 miles per hour), with occasional gusts reaching higher speeds.

These winds are particularly favorable for water sports enthusiasts, as they create ideal conditions for activities such as sailing, windsurfing, and kitesurfing. The reliable winds combined with the pleasant temperatures make São Sebastião a popular destination for outdoor enthusiasts.

Sunshine Hours

São Sebastião enjoys a generous amount of sunshine throughout the year, making it an ideal destination for sun-seekers. The town receives an average of 2,800 to 3,000 hours of sunshine annually. The summer months of July and August have the highest number of sunshine hours, while December and January have the lowest.

The ample sunshine allows visitors and residents of São Sebastião to spend a significant amount of time outdoors, whether it is lounging on the beach, exploring the town's historical sites, or engaging in various outdoor activities.

Overall, São Sebastião boasts a pleasant Mediterranean climate with mild winters, warm summers, and a comfortable amount of rainfall. The town's favorable weather conditions make it a year-round destination for beach lovers, nature enthusiasts, and those seeking a relaxing getaway.

Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about São Sebastião
What is the temperature in São Sebastião right now?

The current temperature in São Sebastião is 8°, and it feels like 7°. Today's high is 8° and the low is 8°.

Will it rain in São Sebastião today?

No rain is expected in São Sebastião today (0% chance). Conditions are currently overcast clouds.

What is the weather in São Sebastião today?

São Sebastião is experiencing overcast clouds with a temperature of 8°. Humidity is at 81% and wind speed is 6.12 km/h from the SW.

What is the humidity in São Sebastião today?

Humidity in São Sebastião is 81% right now, with a dew point of 5°. Conditions may feel muggy or uncomfortable.

What is the wind speed in São Sebastião today?

Wind speed in São Sebastião is 6.12 km/h, flowing at 232° SW wind direction. Gusts up to 8.82 km/h.

What is the 5-day forecast for São Sebastião?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for São Sebastião. Today's high is 8° and low is 8°, with a 0% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in São Sebastião today?

It feels like 7° in São Sebastião today, with 100% cloud cover and 10 km visibility.

Weather in São Sebastião