⛅ Meteorology

In Porto, Portugal, the weather in October is generally mild and pleasant, marking the transition from summer to autumn. Visitors can expect comfortable temperatures, a mix of sunny and cloudy days, and an increased chance of rainfall compared to the summer months.

1. Temperature:
   • Average High: Around 20–21°C (68–70°F)
   • Average Low: Around 11–13°C (52–55°F)
2. Rainfall:
   • October sees a noticeable increase in rainfall as autumn progresses.
   • On average, Porto receives approximately 130–160 mm of rain during the month, with occasional rainy days interspersed with clear weather.
3. Sunshine:
   • Despite the higher probability of rain, there are still many bright and pleasant days.
   • Porto typically enjoys around 5–6 hours of sunshine per day in October.
4. Humidity:
   • Humidity levels are moderate to high, although temperatures remain comfortable for outdoor activities.
5. Sea Temperature:
   • The Atlantic Ocean retains some of the warmth accumulated during summer.
   • Sea temperatures are usually around 17–18°C (63–64°F), suitable for those comfortable with cooler water.

Overall, October is a pleasant time to visit Porto, with mild temperatures, fewer tourists than in the peak summer season, and beautiful autumn scenery. It is an excellent month for sightseeing, cultural visits, and exploring the city’s historic areas, although visitors should be prepared for occasional rain showers.