Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August proves to be the warmest month, recording an average peak temperature of 29.6°C (85.3°F) and a minimum temperature of 13.5°C (56.3°F).Heat index
The heat index in August is computed to be a hot 32°C (89.6°F). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
The least humid month in Viseu is August, with an average relative humidity of 57%.Rainfall
In Viseu, in August, it is raining for 3.3 days, with typically 7mm (0.28") of accumulated precipitation. In Viseu, during the entire year, the rain falls for 125.4 days and collects up to 553mm (21.77") of precipitation.Snowfall
In Viseu, snow does not fall in April through October and December.Daylight
The average length of the day in August is 13h and 45min.On the first day of August in Viseu, Portugal, sunrise is at 06:29 and sunset at 20:46. On the last day of the month, sunrise is at 06:58 and sunset at 20:05 WEST.
Sunshine
In August, the average sunshine is 11.3h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index in Viseu. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In August, an average UV index of 6 transforms into the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the hottest time of year in Viseu?
Is it hot in Viseu during August?
What is the least humid month in Viseu?
What is the average humidity in August in Viseu?
How many days does it rain in August in Viseu?
When it does not snow in Viseu?
How many hours of daylight does Viseu have in August?
What time are sunrise and sunset in August in Viseu?
How many hours of sunshine does Viseu have in August?
What are the months with the highest UV index in Viseu?
What is the UV index reading in August in Viseu?
Average temperature in August
Viseu, Portugal
- Average high temperature in August: 29.6°C
The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (10.7°C).
- Average low temperature in August: 13.5°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in August
Viseu, Portugal
- Average pressure in August: 1016.4mbar
The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in August
Viseu, Portugal
- Average wind speed in August: 7.4km/h
The windiest month (with the highest average wind speed) is March (9.1km/h).
The calmest month (with the lowest average wind speed) is September (7km/h).
Average humidity in August
Viseu, Portugal
- Average humidity in August: 57%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (57%).
Average rainfall in August
Viseu, Portugal
- Average rainfall in August: 7mm
The wettest month (with the highest rainfall) is December (92mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in August
Viseu, Portugal
- Average rainfall days in August: 3.3 days
The month with the highest number of rainy days is November (15.5 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in August
Viseu, Portugal
- Average snowfall in August: 0mm
The months with the highest snowfall are January and February (3mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in August
Viseu, Portugal
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.4 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
Viseu, 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: 11h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in August
Viseu, Portugal
- Average sunshine days in August: 26.8 days
The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is April (13 days).
Average UV index in August
Viseu, 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
Viseu, Portugal
- Average cloud cover in August: 17
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in August
Viseu, Portugal
- Average visibility in August: 9km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January and November (7km).
Viseu, Portugal
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