Portimão weather in March
March in Portimão: nice, a little rain, with clean air — a great time to visit.
#8 of 12 months in Portimão · #434 of 897 destinations to visit in March · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Portimão in March
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Portimão climate normals — March
| Daytime high | 20°C / 67°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Rainfall | 51 mm / 2 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 12 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Portimão in March — FAQ
- Is March a good time to visit Portimão?
- March in Portimão: nice, a little rain, with clean air — a great time to visit. It ranks #8 of 12 months for Portimão on SeasonMap's comfort score (78/100).
- What is the weather like in Portimão in March?
- In March, Portimão averages a daily high of 19.5°C and a low of 10.9°C, with about 50.9 mm of rain over roughly 7.4 rainy days.
- What is the air quality in Portimão in March?
- Portimão has a mean US Air Quality Index of about 41 in March.