Olhão Weather in August
Olhão in August sees high daytime temperatures of 27°C (81°F) and nighttime lows of 21°C (70°F). With just 2.6 mm (0.1 in) of rainfall expected, it's a dry month overall.
Rainfall in Olhão in August
Looking at the last 30 years, the data shows about a single day with rain, averaging 2.6 mm (0.1 in) for the month. On the rare occasion it rains this month, it usually amounts to very little.
Temperature in Olhão in August
If you're visiting Olhão in August, expect perfect temperatures with highs of 27°C (81°F) and overnight lows of 21°C (70°F). The summer season is characteristic of August. This kind of day-to-night contrast is typical for this time of year. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.
Sunshine in Olhão in August
There are approximately 344 hours of sunshine this month, resulting in mostly clear days.
Wind Speed in Olhão in August
Average wind speeds reach 3 m/s (6 knots) in August, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.
Average water temperature in August
The water sits at 20°C (68°F), which is a nice temperature for swimming. Not too cold, not too warm — most visitors are happy to spend time in the water.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for Olhão.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Olhão's climate page.
Olhão Temperature in August
Min Temperature
21°C (70°F)
Max Temperature
27°C (81°F)
Water Temperature
20°C (68°F) *
Chance of Rain
4%
Precipitation
2.6 mm (0.1 in)
Rainy days
a single day
Humidity
60% *
Windspeed
3 m/s (6 knots) *
Sunshine
344 hours *
Percentage Sunshine
82% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Olhão typically stay consistent throughout August, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows around 20°C (68°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Olhão in August
Browse day-by-day weather records for Olhão spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Olhão historical weather extremes in August
The extremes listed below come from historical weather data collected in Olhão from 1976 through 2025.
- Olhão recorded its highest August temperature of 39°C (102°F) on August 1, 2003.
- On August 25, 2002, Olhão saw its coldest August day with temperatures maxing out at 21°C (70°F).
- Nighttime temperatures dropped to 13°C (55°F) on August 29, 1986, marking the coldest August night on record.
Best Places in Portugal in August
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Olhão in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. Expect water temperatures of around 20°C (68°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Olhão in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Olhão's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Olhão climate overview or explore weather in Portugal.
