Porto weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: May – September
What is the weather like in Porto in October?
In October, Porto is mild: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 17.0 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 177 mm in total. All in all, October is a good month for a holiday in Porto.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 92 | 72 | 57 |
| Day | 24° | 21° | 16° |
| Night | 16° | 14° | 10° |
| Sea | 17° | 17° | 16° |
| Sun | 9 h | 6 h | 5 h |
| Rain days | 7 | 13 | 13 |
More details for October
- Daylight
- 11 h 11 min07:45 – 18:56
- UV index
- 4 · moderateclear sky, noon (estimate)
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 17 km/haverage daily peak
- Cloud cover
- 59 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/Lisbon
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %55 %
- Few rainy daysweight 30 %35 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Porto in October: quick answers
Is Porto hot in October?
No. In October, Porto is mild: daytime highs average 21 °C and nights drop to about 14 °C.
Can you swim in Porto in October?
Only if you don't mind cold water: in October the sea averages just 17.0 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Porto in October?
Rain is frequent, with about 13 rainy days and 177 mm in total.
Porto month by month
The whole year in PortoAll destinations: Portugal
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)