Sesimbra Weather in August
In Sesimbra, August brings high daytime temperatures around 24°C (75°F), with nights cooling to 19°C (66°F). Minimal rainfall is to be expected.
Rainfall in Sesimbra in August
Looking at the last 30 years, the data shows about 2 days with rain, averaging 4.2 mm (0.2 in) for the month. On the rare occasion it rains this month, it usually amounts to very little.
Temperature in Sesimbra in August
August is a perfect month in Sesimbra, with 24°C (75°F) during the day and 19°C (66°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. On average, it sees the highest temps of the year.
Sunshine in Sesimbra in August
Expect a lot of sunshine this month, with about 350 hours of sun. These sunny conditions add to the overall experience.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 Sesimbra.
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 Sesimbra's climate page.
Sesimbra Temperature in August
Min Temperature
19°C (66°F)
Max Temperature
24°C (75°F)
Chance of Rain
6%
Precipitation
4.2 mm (0.2 in)
Rainy days
2 days
Sunshine
350 hours *
Percentage Sunshine
82% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sesimbra typically stay consistent throughout August, with daily highs averaging around 24°C (75°F). Nights are pleasant, with lows around 18°C (64°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 Sesimbra in August
Browse day-by-day weather records for Sesimbra spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sesimbra historical weather extremes in August
Based on 49 years of weather observations in Sesimbra between 1976 and 2025, these are the recorded extremes.
- Sesimbra recorded its highest August temperature of 42°C (108°F) on August 4, 2018.
- Sesimbra experienced its chilliest August day on August 26, 1993, reaching only 20°C (68°F).
- Sesimbra registered its coldest August night on August 13, 1983, with temperatures dropping to 11°C (52°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 Sesimbra in August
For Sesimbra in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Almost no rain is expected, so no need to bring rain gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Sesimbra 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 Sesimbra's climate page.
See the full Sesimbra climate overview or explore weather in Portugal.
