Rio de Onor Weather in August
August in Rio de Onor brings high temperatures, with highs of 27°C (81°F) and nights dropping to 13°C (55°F). With perfect weather conditions overall, it's a good time to visit.
Rainfall in Rio de Onor in August
You can expect rain on around 6 days based on historical patterns, with 24 mm (0.9 in) average for the month. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.
Temperature in Rio de Onor in August
August is a good time to be in Rio de Onor. Days are perfect, reaching 27°C (81°F), with nights around 13°C (55°F). August is a notable month of the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Rio de Onor in August
The days are predominantly sunny, with an estimated total of around 343 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Rio de Onor in August
Wind speeds average 2 m/s (4 knots) during August. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Rio de Onor.
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 Rio de Onor's climate page.
Rio de Onor Temperature in August
Min Temperature
13°C (55°F)
Max Temperature
27°C (81°F)
Chance of Rain
21%
Precipitation
24 mm (0.9 in)
Rainy days
6 days
Humidity
50% *
Windspeed
2 m/s (4 knots) *
Sunshine
343 hours *
Percentage Sunshine
81% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Rio de Onor typically stay consistent throughout August, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows typically ranging from 13°C (55°F) to 15°C (59°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 Rio de Onor in August
Browse day-by-day weather records for Rio de Onor spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rio de Onor historical weather extremes in August
Our historical data for Rio de Onor spans 1976 to 2025, revealing these weather extremes.
- On August 23, 2023, temperatures climbed to 41°C (106°F), marking the warmest August day on record.
- On August 18, 2006, Rio de Onor saw its coldest August day with temperatures maxing out at 15°C (59°F).
- The lowest overnight temperature recorded in August was 5°C (41°F) (August 29, 1977).
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 Rio de Onor in August
Warm but pleasant conditions in Rio de Onor in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Light rain is possible, so consider bringing a small umbrella or rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Rio de Onor 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 Rio de Onor's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Rio de Onor climate overview or explore weather in Portugal.
