Porto
Portugal
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Porto, Portugal

Ships docked along the shores on the coastal city of Porto, Portugal
Ships docked along the shores on the coastal city of Porto, Portugal
January, like December, is a moderate winter month in Porto, Portugal, with average temperature varying between 5.2°C (41.4°F) and 13.8°C (56.8°F). January is the coldest month, with an average high-temperature of 13.8°C (56.8°F) and an average low-temperature of 5.2°C (41.4°F). Weather in January »
The last month of the winter, February, is another mild month in Porto, Portugal, with average temperature ranging between max 15°C (59°F) and min 5.9°C (42.6°F). In Porto, the average high-temperature is almost the same as in January - a still moderate 15°C (59°F). Weather in February »

March, the first month of the spring, in Porto, is an enjoyable month, with average temperature ranging between max 17.4°C (63.3°F) and min 7.8°C (46°F). In March, the average high-temperature is practically the same as in February - a comfortable 17.4°C (63.3°F). Weather in March »

April, the same as March, is another enjoyable spring month in Porto, Portugal, with average temperature fluctuating between 18.1°C (64.6°F) and 9.1°C (48.4°F). In April, the average high-temperature is practically the same as in March - a still comfortable 18.1°C (64.6°F). Weather in April »

May, the last month of the spring, in Porto, is an agreeable month, with average temperature varying between 11.6°C (52.9°F) and 20.1°C (68.2°F). In Porto, Portugal, the average high-temperature is almost the same as in April - an agreeable 20.1°C (68.2°F). Weather in May »

June, the first month of the summer, in Porto, is a moderately hot month, with temperature in the range of an average low of 14.5°C (58.1°F) and an average high of 23.5°C (74.3°F). In Porto, the average high-temperature slightly increases, from an agreeable 20.1°C (68.2°F) in May, to a moderately hot 23.5°C (74.3°F). Weather in June »

July, like June, in Porto, Portugal, is another warm summer month, with average temperature fluctuating between 15.9°C (60.6°F) and 25.3°C (77.5°F). In Porto, the average high-temperature in July is relatively the same as in June - a still warm 25.3°C (77.5°F). Weather in July »

August, the last month of the summer, in Porto, is another warm month, with average temperature varying between 15.9°C (60.6°F) and 25.7°C (78.3°F). August is the warmest month, with an average high-temperature of 25.7°C (78.3°F) and an average low-temperature of 15.9°C (60.6°F). Weather in August »

September, the first month of the autumn, in Porto, is still a warm month, with average temperature ranging between max 24.1°C (75.4°F) and min 14.7°C (58.5°F). In Porto, the average high-temperature in September is essentially the same as in August - a still moderately hot 24.1°C (75.4°F). Weather in September »

October, the same as September, in Porto, Portugal, is an agreeable autumn month, with average temperature ranging between min 12.2°C (54°F) and max 20.7°C (69.3°F). In Porto, the average high-temperature in October slightly decreases, from a warm 24.1°C (75.4°F) in September, to an agreeable 20.7°C (69.3°F). Weather in October »

The last month of the autumn, November, is also an enjoyable month in Porto, Portugal, with temperature in the range of an average high of 17.1°C (62.8°F) and an average low of 8.9°C (48°F). In November, the average high-temperature marginally drops, from a pleasant 20.7°C (69.3°F) in October, to a comfortable 17.1°C (62.8°F). Weather in November »

December, the first month of the winter, in Porto, is still a mild month, with average temperature fluctuating between 6.9°C (44.4°F) and 14.4°C (57.9°F). In Porto, the average high-temperature is practically the same as in November - a moderate 14.4°C (57.9°F). Weather in December »

What is the coldest month in Porto?

With an average high-temperature of 13.8°C (56.8°F) and an average low-temperature of 5.2°C (41.4°F), January is the coldest month.

How many days does it rain in Porto?

Throughout the year, in Porto, there are 147 rainfall days, and 1236.8mm (48.7") of precipitation is accumulated.

What is the month with the least sunshine in Porto?

Months with the least sunshine in Porto are January and December, with an average of 4h of sunshine.

What are the months with the coldest sea water in Porto?

February and March, with an average sea temperature of 13.8°C (56.8°F), are months with the coldest seawater. At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

When are the longest days in Porto?

The month with the longest days in Porto, Portugal, is June, with an average of 15.1h of daylight.

What is the month with the highest UV index in Porto?

Months with the highest UV index in Porto, Portugal, are June through August, with an average maximum UV index of 8.

What is the driest month in Porto?

July is the month with the least rainfall in Porto. Rain falls for 6 days and accumulates 20.4mm (0.8") of precipitation.

What month has the most sunshine in Porto?

With an average of 9.9h of sunshine, July has the most sunshine of the year in Porto, Portugal.

What is the warmest month in Porto?

With an average high-temperature of 25.7°C (78.3°F) and an average low-temperature of 15.9°C (60.6°F), August is the warmest month in Porto, Portugal.

What month is the sea warmest in Porto?

September is the month with the warmest seawater in Porto, with an average sea temperature of 18.2°C (64.8°F). For most, swimming in 18.2°C (64.8°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

What is the rainiest month in Porto?

The month with the most rainfall in Porto, Portugal, is December when the rain falls for 15 days and typically aggregates up to 181mm (7.1") of precipitation.

What is the month with the shortest days in Porto?

December has the shortest days of the year, with an average of 9.3h of daylight.

When is the lowest UV index in Porto?

The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature - Porto, Portugal
Average rainfall - Porto, Portugal

The wettest month (with the highest rainfall) is December (181mm).
The driest month (with the lowest rainfall) is July (20.4mm).

Average rainfall days - Porto, Portugal
Average sea temperature - Porto, Portugal

The best month for swimming (with the highest average sea temperature) is September (18.2°C).
Coldest months (with the lowest average sea temperature) are February and March (13.8°C).

Average daylight / Average sunshine - Porto, Portugal

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

The month with most sunshine is July (Average sunshine: 9.9h).
Months with least sunshine are January and December (Average sunshine: 4).