August weather forecastCastelo Branco, Portugal
August
Weather in August
August, the last month of the summer in Castelo Branco, is another tropical month, with temperature in the range of an average high of 32.8°C (91°F) and an average low of 17.1°C (62.8°F).Temperature
August, recording an average high temperature of 32.8°C (91°F) and a low temperature of 17.1°C (62.8°F), is Castelo Branco's warmest month.Heat index
Throughout August, the heat index is computed to be a tropical 34°C (93.2°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
With an average relative humidity of 44%, August is the least humid month.Rainfall
July and August are months with the least rain in Castelo Branco when the rain falls for 1.5 days and typically aggregates up to 3mm (0.12") of rain.Snowfall
February through December are months without snowfall.Daylight
In Castelo Branco, the average length of the day in August is 13h and 42min.On the first day of the month, sunrise is at 06:29 and sunset at 20:43. On the last day of August, sunrise is at 06:57 and sunset at 20:02 WEST.
Sunshine
The months with the most sunshine in Castelo Branco are July and August, with an average of 11.8h of sunshine.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 6 during August morphs into the following directions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Castelo Branco, Portugal
- Average high temperature in August: 32.8°C
The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (11.6°C).
- Average low temperature in August: 17.1°C
The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).
Average pressure in August
Castelo Branco, Portugal
- Average pressure in August: 1015.6mbar
The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in August
Castelo Branco, Portugal
- Average wind speed in August: 9.1km/h
The windiest month (with the highest average wind speed) is February (11.3km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity in August
Castelo Branco, Portugal
- Average humidity in August: 44%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (44%).
Average rainfall in August
Castelo Branco, Portugal
- Average rainfall in August: 3mm
The wettest month (with the highest rainfall) is November (60mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in August
Castelo Branco, Portugal
- Average rainfall days in August: 1.5 days
The month with the highest number of rainy days is November (12.3 days).
The month with the least rainy days is August (1.5 days).
Average snowfall in August
Castelo Branco, Portugal
- Average snowfall in August: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in August
Castelo Branco, Portugal
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and March (0.1 days).
The months with the least snowfall days are February, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Castelo Branco, Portugal
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 11h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in August
Castelo Branco, Portugal
- Average sunshine days in August: 28.3 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is April (16.6 days).
Average UV index in August
Castelo Branco, Portugal
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Castelo Branco, Portugal
- Average cloud cover in August: 8
The month with the most cloud cover is January (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in August
Castelo Branco, Portugal
- Average visibility in August: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
