August weather forecastFontelo, Portugal

August

Weather in August

The last month of the summer, August, is another warm month in Fontelo, Portugal, with temperature in the range of an average high of 28.6°C (83.5°F) and an average low of 14°C (57.2°F).

Temperature

August is marked by an average high-temperature of a still warm 28.6°C (83.5°F), almost identical to the preceding month. Fontelo's average low-temperature of 14°C (57.2°F) in August reflects a significant disparity from the daytime highs.

Heat index

For most parts of August, the heat index is appraised at a hot 30°C (86°F). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

August is the least humid month, with an average relative humidity of 56%.

Rainfall

In Fontelo, in August, it is raining for 3.9 days, with typically 9mm (0.35") of accumulated precipitation. Throughout the year, in Fontelo, there are 108.1 rainfall days, and 286mm (11.26") of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Fontelo, the average length of the day in August is 13h and 47min.
On the first day of August, sunrise is at 06:27 and sunset at 20:47. On the last day of the month, sunrise is at 06:57 and sunset at 20:05 WEST.

Sunshine

The average sunshine in August is 11.3h.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in August transforms into this advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

The high-temperature, in August, in Fontelo, records 28.6°C (83.5°F), while the low-temperature is 14°C (57.2°F). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 30°C (86°F).

With an average relative humidity of 56%, August is the least humid month.

In Fontelo, the average relative humidity in August is 56%.

In Fontelo, during August, the rain falls for 3.9 days and regularly aggregates up to 9mm (0.35") of precipitation.

In Fontelo, Portugal, snow does not fall in April through October.

In August, the average day length is 13h and 47min.

In August, on the first day of the month, sunrise is at 06:27 and sunset at 20:47. On the last day of the month, in Fontelo, sunrise is at 06:57 and sunset at 20:05 WEST.

In Fontelo, the average sunshine duration in August is 11.3h.

The months with the highest UV index are July and August, with an average maximum UV index of 6.

In Fontelo, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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 snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Fontelo, Portugal

  • Average high temperature in August: 28.6°C

The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (9.4°C).

  • Average low temperature in August: 14°C

The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).

Average pressure in August
Fontelo, Portugal

  • Average pressure in August: 1016.9mbar

The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

Average wind speed in August
Fontelo, Portugal

  • Average wind speed in August: 7.1km/h

The windiest month (with the highest average wind speed) is March (8.6km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).

Average humidity in August
Fontelo, Portugal

  • Average humidity in August: 56%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (56%).

Average rainfall in August
Fontelo, Portugal

  • Average rainfall in August: 9mm

The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is July (8mm).

Average rainfall days in August
Fontelo, Portugal

  • Average rainfall days in August: 3.9 days

The month with the highest number of rainy days is April (13.6 days).
The month with the least rainy days is August (3.9 days).

Average snowfall in August
Fontelo, Portugal

  • Average snowfall in August: 0mm

The month with the highest snowfall is February (7mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in August
Fontelo, Portugal

  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Fontelo, Portugal

  • Average daylight in August: 13h and 48min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 11h and 18min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in August
Fontelo, Portugal

  • Average sunshine days in August: 25.5 days

The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is April (14.1 days).

Average UV index in August
Fontelo, Portugal

  • Average UV index in August: 6

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Fontelo, Portugal

  • Average cloud cover in August: 16

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in August
Fontelo, Portugal

  • Average visibility in August: 9km

The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (6km).