August weather forecastOlhão, Portugal
August
Weather in August
August continues the pleasant trend of warm weather in Olhão. Yet, the highest temperature of the year is recorded in August, reaching 27.1°C (80.8°F). The relative humidity also drops down to 62% making the heat a bit more bearable. The month is perfect for exploring the city’s historical precincts or wading into the cool, inviting waters of the Atlantic. Maintaining a fairly high sunshine record, the brilliant weather is excellently suited for the outdoor seafood festival hosted by the city.Temperature
August, on average, is the warmest month in Olhão, Portugal, registering a high temperature of 27.1°C (80.8°F) and a low of 20.8°C (69.4°F).Heat index
The heat index for August is computed to be 28°C (82.4°F). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The least humid month is August, with an average relative humidity of 62%.Rainfall
The months with the least rainfall are June through August Rain falls for 0.8 days and accumulates 1mm (0.04") of rain.Sea temperature
The month with the warmest seawater is August, with an average sea temperature of 22.1°C (71.8°F).Note: If you're wary of the cold, the surrounding conditions—sunshine, wind, and air temperature become crucial when swimming in 22.1°C (71.8°F) waters. Olympic standards, for reference, are set between 25°C (77°F) and 28°C (82.4°F).
Daylight
The average length of the day in August is 13h and 32min.On the first day of the month, sunrise is at 06:37 and sunset at 20:38. On the last day of August, sunrise is at 07:01 and sunset at 20:01 WEST.
Sunshine
The average sunshine in August in Olhão is 11.7h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index in Olhão, Portugal. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 6 during August leads to these instructions:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice! Sand and water reflections contribute to a stronger UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Olhão, Portugal
- Average high temperature in August: 27.1°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (15.1°C).
- Average low temperature in August: 20.8°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is February (11.2°C).
Average pressure in August
Olhão, Portugal
- Average pressure in August: 1015.4mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The months with the lowest atmospheric pressure are April and August (1015.4mbar).
Average wind speed in August
Olhão, Portugal
- Average wind speed in August: 13.7km/h
The windiest months (with the highest average wind speed) are February and March (19km/h).
The calmest month (with the lowest average wind speed) is September (12.7km/h).
Average humidity in August
Olhão, Portugal
- Average humidity in August: 62%
The month with the highest relative humidity is April (74%).
The month with the lowest relative humidity is August (62%).
Average rainfall in August
Olhão, Portugal
- Average rainfall in August: 1mm
The wettest month (with the highest rainfall) is November (19mm).
The driest months (with the least rainfall) are June, July and August (1mm).
Average rainfall days in August
Olhão, Portugal
- Average rainfall days in August: 0.8 days
The month with the highest number of rainy days is April (8.2 days).
The month with the least rainy days is August (0.8 days).
Average sea temperature in August
Olhão, Portugal
- Average sea temperature in August: 22.1°C
The best month for swimming (with the highest average sea temperature) is August (22.1°C).
The coldest month (with the lowest average sea temperature) is March (15.9°C).
Average daylight in August /
Average sunshine in August
Olhão, Portugal
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 11h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in August
Olhão, Portugal
- Average sunshine days in August: 28.9 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is April (20.3 days).
Average UV index in August
Olhão, Portugal
- Average UV index in August: 6
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in August
Olhão, Portugal
- Average cloud cover in August: 6
The month with the most cloud cover is January (Cloud cover 30).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in August
Olhão, Portugal
- Average visibility in August: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





