Portimão Weather in August
August in Portimão averages 28°C (82°F) during the day and 19°C (66°F) at night. With only 2.8 mm (0.1 in) of rainfall expected on average, it's a largely dry month.
Rainfall in Portimão in August
On average, there are about a single day with rain during this month, averaging 2.8 mm (0.1 in). Any rain that does arrive is likely to be light drizzle rather than a proper shower.
Temperature in Portimão in August
August is a perfect month in Portimão, with 28°C (82°F) during the day and 19°C (66°F) at night. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.
Sunshine in Portimão in August
The city usually sees around 357 hours of sunlight, indicating many sunny days — a great month for sightseeing.Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, June, July, August, September and October typically offer the best weather for Portimão.
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 Portimão's climate page.
Portimão Temperature in August
Min Temperature
19°C (66°F)
Max Temperature
28°C (82°F)
Chance of Rain
3%
Precipitation
2.8 mm (0.1 in)
Rainy days
a single day
Sunshine
357 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Portimão typically stay consistent throughout August, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows around 19°C (66°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 Portimão in August
Browse day-by-day weather records for Portimão spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Portimão historical weather extremes in August
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Portimão.
- Portimão recorded its highest August temperature of 38°C (100°F) on August 9, 1976.
- On August 30, 2002, Portimão saw its coldest August day with temperatures maxing out at 21°C (70°F).
- Portimão registered its coldest August night on August 29, 1986, with temperatures dropping to 13°C (55°F).
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 Portimão in August
Warm but pleasant conditions in Portimão 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. Dry conditions mean you won't need to worry about rain protection. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Portimão 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 Portimão's climate page.
See the full Portimão climate overview or explore weather in Portugal.
