Portimão weather in August
August in Portimão: hot, dry, with clean air — one of the best months to visit.
#1 of 12 months in Portimão · #13 of 897 destinations to visit in August · comfort 96/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Portimão in August
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Portimão climate normals — August
| Daytime high | 31°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 19°C / 66°F | |
| Rainfall | 0 mm / 0 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 59% | 🍃 comfortable |
| Dew point | 15°C / 58°F | |
| Sunshine | 12.5 h/day | |
| Daylight | 13.5 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Portimão in August — FAQ
- Is August a good time to visit Portimão?
- August in Portimão: hot, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Portimão on SeasonMap's comfort score (96/100).
- What is the weather like in Portimão in August?
- In August, Portimão averages a daily high of 30.6°C and a low of 19°C, with about 0.1 mm of rain over roughly 0 rainy days.
- What is the air quality in Portimão in August?
- Portimão has a mean US Air Quality Index of about 38 in August.