August weather forecast
São Tiago, Portugal

August

Weather in August

The last month of the summer, August, is another warm month in São Tiago, Portugal, with an average temperature varying between 26.6°C (79.9°F) and 15.3°C (59.5°F).

Temperature

In São Tiago, the month of August registers the highest temperatures, averaging 26.6°C (79.9°F) at the peak and 15.3°C (59.5°F) at the lowest.

Humidity

August and September, with an average relative humidity of 66%, are the least humid months.

Rainfall

In São Tiago, in August, it is raining for 5 days, with typically 11mm (0.43") of accumulated precipitation. In São Tiago, Portugal, during the entire year, the rain falls for 125.7 days and collects up to 773mm (30.43") of precipitation.

Daylight

The average length of the day in August is 13h and 45min.
On the first day of August, sunrise is at 06:32 and sunset at 20:49. On the last day of the month, sunrise is at 07:01 and sunset at 20:08 WEST.

Sunshine

In São Tiago, the average sunshine in August is 10.7h.

UV index

The month with the highest UV index is August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, a regular UV index of 6 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What month is the hottest?
August stands out as São Tiago's warmest month, with temperatures ranging between an average high of 26.6°C (79.9°F) and a low of 15.3°C (59.5°F).
What are August temperatures?
In São Tiago, 26.6°C (79.9°F) is the average high-temperature and 15.3°C (59.5°F) is the average low-temperature during August.
What are the least humid months?
August and September, with an average relative humidity of 66%, are the least humid months.
What is the average humidity in August?
In São Tiago, Portugal, the average relative humidity in August is 66%.
How much does it rain in August?
In August, the rain falls for 5 days. Throughout August, 11mm (0.43") of precipitation is accumulated.
What is the average length of the day in August?
In August, the average day length is 13h and 45min.
When is the sunrise / sunset in August?
In August, on the first day of the month, sunrise is at 06:32 and sunset at 20:49. On the last day of the month, sunrise is at 07:01 and sunset at 20:08 WEST.
How long on average sun shines in August?
In São Tiago, the average sunshine duration in August is 10.7h.
When is the highest UV index?
The month with the highest UV index is August, with an average maximum UV index of 6.
What is the UV index reading in August?
The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in August - São Tiago, Portugal
Average temperature in August
São Tiago, Portugal
  • Average high temperature in August: 26.6°C

The warmest month (with the highest average high temperature) is August (26.6°C).
The month with the lowest average high temperature is January (12.7°C).

  • Average low temperature in August: 15.3°C

The months with the highest average low temperature are July and August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).

Average pressure in August - São Tiago, Portugal
Average pressure in August
São Tiago, Portugal
  • Average pressure in August: 1017.1mbar

The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

Average wind speed in August - São Tiago, Portugal
Average wind speed in August
São Tiago, Portugal
  • Average wind speed in August: 8.2km/h

The windiest month (with the highest average wind speed) is February (10.3km/h).
The calmest month (with the lowest average wind speed) is September (7.8km/h).

Average humidity in August - São Tiago, Portugal
Average humidity in August
São Tiago, Portugal
  • Average humidity in August: 66%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (66%).

Average rainfall in August - São Tiago, Portugal
Average rainfall in August
São Tiago, Portugal
  • Average rainfall in August: 11mm

The wettest month (with the highest rainfall) is November (124mm).
The driest month (with the least rainfall) is July (10mm).

Average rainfall days in August - São Tiago, Portugal
Average rainfall days in August
São Tiago, Portugal
  • Average rainfall days in August: 5 days

The month with the highest number of rainy days is November (15.6 days).
The month with the least rainy days is August (5 days).

Average daylight in August / Average sunshine in August - São Tiago, Portugal
Average daylight in August /
Average sunshine in August
São Tiago, Portugal
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in August - São Tiago, Portugal
Average sunshine days in August
São Tiago, Portugal
  • Average sunshine days in August: 24.2 days

The month with the most sunshine days is August (24.2 days).
The month with the least sunshine days is November (12.5 days).

Average UV index in August - São Tiago, Portugal
Average UV index in August
São Tiago, Portugal
  • Average UV index in August: 6

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

Average cloud cover in August - São Tiago, Portugal
Average cloud cover in August
São Tiago, Portugal
  • Average cloud cover in August: 22

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in August - São Tiago, Portugal
Average visibility in August
São Tiago, Portugal
  • Average visibility in August: 9km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).

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