The weather in August in São Martinho do Porto

It's warm in August in São Martinho do Porto with an average temperature of 27°C. Temperatures this month range from a low of 25°C to a high of 28°C. At night, you can expect temperatures between 17°C and 19°C.

Looking for great weather? August is a good time to be in São Martinho do Porto. The temperatures are nice, and there’s little chance of rain this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for São Martinho do Porto, Portugal. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 38°C in 2023, São Martinho do Porto reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 18°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 26°C.

Water temperature

The water temperature at São Martinho do Porto is 23°C this month. Comfortable for a swim.

Rainfall amount

According to weather history, there is only 2,9 mm of precipitation in August. The wind speed is around 4 Bft, mostly coming from the West.

Daily weather in August for São Martinho do Porto

Click on any day in August to get detailed info about the usual weather on that day in São Martinho do Porto. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  São Martinho do Porto New York
Average temperature 27°C 30°C
Max. temperature 28°C 31°C
Min. temperature 17°C -5°C
Total precipitation 2,9 mm 79 mm
Rainy days 1 day 13 days

Start of August

The month of August starts in São Martinho do Porto with hot temps, averaging around 28°C during the day and nights around 19°C.

Mid August

By mid-August, daytime temps drop to around 27°C, with nights around 18°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of August

By the end of August, the average daytime temperature in São Martinho do Porto is around 27°C, while nighttime temps are about 18°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

Find affordable trips to São Martinho do Porto

UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of São Martinho do Porto for all months and discover the best travel time

Curious about the weather in other parts of Portugal? Check out the climate and weather for spots like Algarve, Lisbon, Albufeira, or explore other destinations in Portugal.

Temperature charts

These charts show the average temperatures in August in São Martinho do Porto, Portugal. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in São Martinho do Porto

Temperature in August in São Martinho do Porto over the years

Precipitation charts

These charts show the average amount of precipitation in August in São Martinho do Porto, Portugal. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in August in São Martinho do Porto

Total precipitation in August in São Martinho do Porto over the years

Daily UV index in August in São Martinho do Porto

This chart shows the average daily UV index in August in São Martinho do Porto, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in August in São Martinho do Porto

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Average weather in São Martinho do Porto by month

Click on a month below to see detailed weather info for São Martinho do Porto. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.