Porto weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Excellent
Best time to visit: May – September
What is the weather like in Porto in July?
In July, Porto is warm: daytime highs average 26 °C, and nights cool down to about 17 °C. The sea averages 17.0 °C – bracing, so a wetsuit helps for longer swims. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 23 mm in total. All in all, July is an excellent month for a holiday in Porto.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 14 h 53 min06:14 – 21:07
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 4 daysdew point 18 °C or more
- Wind
- 18 km/haverage daily peak
- Cloud cover
- 33 %on average
- Hot days
- 5 days30 °C or more
- Time zone
- UTC+1Europe/Lisbon
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
Porto in July: quick answers
Is Porto hot in July?
Warm rather than hot: in July, daytime highs in Porto average 26 °C and nights cool to about 17 °C. On about 5 days the thermometer climbs to 30 °C or more.
Can you swim in Porto in July?
Only if you don't mind cold water: in July 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 July?
Rain is rare: about 4 days bring 23 mm in total.
Porto month by month
The whole year in PortoAll destinations: PortugalWhere to go in July
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)