Cool
Average highs are around 17°C, so pack for cooler days.
Weather Guide
Best months: July, August, June
Across the year, average daytime temperatures are around 15°C, sunshine averages 6.8h per day, and rainfall totals about 825mm. Sea temperatures average 19°C across the year.
Annual averages
Temp
15°C
Rain
825mm
Annual total
Sun
6.8h
Sea
19°C
Weather score
43
Mixed avg
Cool
Average highs are around 17°C, so pack for cooler days.
Showers
Rainfall averages 100mm, so some wet days are possible.
Some sun
Sunshine averages 6.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Compare Gulf of Porto, France with nearby places by weather score, rain, sun, temperature, and swim conditions.
October17°C average high
October is close to Gulf of Porto's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
October100mm average rain
October is wetter than Gulf of Porto's yearly average, so flexible plans matter more.
Driest monthsJune to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
October6.2 hours average sun
October is below Gulf of Porto's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
October21°C average sea
October is close to Gulf of Porto's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
October42 weather score
October scores below Gulf of Porto's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.