October weather forecast
Lisbon, Portugal

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The beautiful hillside city of Lisbon in Portugal, with a high, far view of the Sao Jorge Castle
The beautiful hillside city of Lisbon in Portugal, with a high, far view of the Sao Jorge Castle

Weather in October

October in Lisbon bears witness to the onset of autumn, with temperatures gradually declining. As the city braces for winter, rainfall frequency increases, with an average precipitation of 101mm. Despite this, Lisbon retains its charm, with alternating periods of sun and showers. The diminishing daylight hours and decline in UV index give the city a new character, making it an interesting time for tourists to explore. However, the falling temperatures require appropriate clothing, particularly in the mornings and evenings.

Temperature

The arrival of October in Lisbon, Portugal, suggests a slight decrease in the average high-temperature, moving from a moderately hot 26.5°C in September to a pleasant 22.5°C. During October, the temperature in Lisbon, Portugal, is averaged to a low of 15.1°C at night.

Rainfall

In October, the rain falls for 10 days. Throughout October, 101mm of precipitation is accumulated. In Lisbon, during the entire year, the rain falls for 112 days and collects up to 774mm of precipitation.

Sea temperature

In Lisbon, the average seawater temperature in October is 19.8°C.
Note: Swimming in water with a temperature of 19.8°C is not a pleasurable experience for the majority. As the temperature falls below 21°C, it becomes increasingly hard to control one's breathing.

Daylight

In October, the average length of the day is 11h and 11min.
On the first day of October in Lisbon, sunrise is at 07:32 and sunset at 19:20 WEST. On the last day of the month, sunrise is at 07:02 and sunset at 17:38 WET.
Note: On Sunday, 29. October 2023, at 02:00, Daylight Saving Time ends, and the time zone changes from WEST to WET. Daylight Saving Time starts again on Sunday, 31. March 2024, at 01:00; consequently, the time zone reverts from WET to WEST.

Sunshine

The average sunshine in October in Lisbon, Portugal, is 7h.

UV index

In Lisbon, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 4 in October converts into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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FAQ

What is the average October temperature in Lisbon?

In Lisbon, in October, the average high-temperature is 22.5°C, and the average low-temperature is 15.1°C.

How much does it rain in Lisbon in October?

In Lisbon, Portugal, in October, during 10 rainfall days, 101mm of precipitation is typically accumulated.

How cold is the water in October in Lisbon?

In October, the average sea temperature is 19.8°C. For most, swimming in 19.8°C is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C to 15°C.

What is the average length of the day in October in Lisbon?

The average day length in October is 11h and 11min.

When are sunrise and sunset in October in Lisbon?

In October, on the first day of the month, sunrise is at 07:32 and sunset at 19:20 WEST. On the last day of the month, sunrise is at 07:02 and sunset at 17:38 WET.

When does Daylight Saving Time (DST) end in October in Lisbon?

On Sunday, 29. October 2023, at 02:00, Daylight Saving Time ends, and the time zone changes from WEST to WET. The next DST starts on Sunday, 31. March 2024, at 01:00.

How many hours of sunshine does Lisbon have in October?

In Lisbon, the average sunshine duration in October is 7h.

What is the UV index reading in October in Lisbon?

In Lisbon, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index

Average temperature in October
Lisbon, Portugal

Average temperature in October - Lisbon, Portugal
  • Average high temperature in October: 22.5°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (14.8°C).

  • Average low temperature in October: 15.1°C

The month with the highest average low temperature is August (18.6°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).

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Average rainfall in October
Lisbon, Portugal

Average rainfall in October - Lisbon, Portugal
  • Average rainfall in October: 100.8mm

The wettest month (with the highest rainfall) is November (127.6mm).
The driest month (with the least rainfall) is July (4.2mm).

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Average rainfall days in October
Lisbon, Portugal

Average rainfall days in October - Lisbon, Portugal
  • Average rainfall days in October: 10 days

The months with the highest number of rainy days are January, February and December (14 days).
The months with the least rainy days are July and August (2 days).

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Average sea temperature in October
Lisbon, Portugal

Average sea temperature in October - Lisbon, Portugal
  • Average sea temperature in October: 19.8°C

The best month for swimming (with the highest average sea temperature) is September (19.9°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).

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Average daylight in October /
Average sunshine in October
Lisbon, Portugal

Average daylight in October / Average sunshine in October - Lisbon, Portugal
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in October: 7h

The months with the most sunshine are July and August (Average sunshine: 11h).
The months with the least sunshine are January, February, November and December (Average sunshine: 5h).

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Average UV index in October
Lisbon, Portugal

Average UV index in October - Lisbon, Portugal
  • Average UV index in October: 4

The months with the highest UV index are June and July (UV index 9).
The months with the lowest UV index are January and December (UV index 2).

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Lisbon, Portugal

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