Climate almanac
Oiã
Aveiro, Portugal · 40.54°, -8.54°
What is the climate like in Oiã?
The best time to visit Oiã is typically June – September, with trip comfort peaking in July (8.8/10). Oiã is warmest in August, when daily highs average 82°F (28°C), and coolest in January, when lows fall to about 44°F (6°C). The wettest month is typically November and the driest is August; the year sees roughly 41 in (1043 mm) of precipitation.
- Best time to visitJune – September — comfort peaks in July (8.8/10)
- Warmest monthAugust — average high 82°F (28°C)
- Coolest monthJanuary — average low 44°F (6°C)
- Wettest monthNovember (5.8 in (148 mm))
- Driest monthAugust (0.3 in (7 mm))
- Annual precipitation41 in (1043 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromCoimbra/cernache, 44 km away (1996-2022)