October weather forecast
Londonderry, United Kingdom

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Weather in October

October, like September, is another mild autumn month in Londonderry, United Kingdom, with temperature in the range of an average low of 7.2°C (45°F) and an average high of 13.5°C (56.3°F).

Temperature

October brings a minor shift in the average high-temperature, adjusting from a comfortable 16.7°C (62.1°F) in September to a moderate 13.5°C (56.3°F). In October, the temperature drops to an average of 7.2°C (45°F) at night.

Rainfall

October is the month with the most rainfall in Londonderry. Rain falls for 16 days and accumulates 89mm (3.5") of precipitation.

Sea temperature

In October, the average sea temperature in Londonderry is 13.3°C (55.9°F).
Note: In 13.3°C (55.9°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).

Daylight

The average length of the day in October in Londonderry is 10h and 28min.
On the first day of October in Londonderry, sunrise is at 7:32 am and sunset at 7:04 pm BST. On the last day of the month, sunrise is at 7:32 am and sunset at 4:53 pm GMT.
Note: On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from BST to GMT. Daylight Saving Time starts again on Sunday, 30. March 2025, at 1:00 am; consequently, the time zone reverts from GMT to BST.

Sunshine

In Londonderry, the average sunshine in October is 3.3h.

UV index

In Londonderry, United Kingdom, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 2 during October morphs into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the average October temperature in Londonderry?

In October, in Londonderry, the average high-temperature is 13.5°C (56.3°F), and the average low-temperature is 7.2°C (45°F).

What is the rainiest month in Londonderry?

The month with the most rainfall is October, when the rain falls for 16 days and typically aggregates up to 89mm (3.5") of precipitation.

How many days does it rain in October in Londonderry?

In October, in Londonderry, the rain falls for 16 days. Throughout October, 89mm (3.5") of precipitation is accumulated.

What is the sea water temperature in October in Londonderry?

In Londonderry, United Kingdom, the average seawater temperature in October is 13.3°C (55.9°F). Swimming in 13.3°C (55.9°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

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

In Londonderry, the average day length in October is 10h and 28min.

What time are sunrise and sunset in October in Londonderry?

On the first day of October in Londonderry, United Kingdom, sunrise is at 7:32 am and sunset at 7:04 pm BST. On the last day of the month, sunrise is at 7:32 am and sunset at 4:53 pm GMT.

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

On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from BST to GMT. The next DST starts on Sunday, 30. March 2025, at 1:00 am.

How many hours of sunshine does Londonderry have in October?

In Londonderry, United Kingdom, the average sunshine duration in October is 3.3h.

How high is the UV index in October in Londonderry?

In Londonderry, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in October
Londonderry, United Kingdom

Average temperature in October - Londonderry, United Kingdom
  • Average high temperature in October: 13.5°C

The warmest month (with the highest average high temperature) is July (18.9°C).
The months with the lowest average high temperature are January and December (8°C).

  • Average low temperature in October: 7.2°C

The month with the highest average low temperature is July (11.6°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).

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Average rainfall in October
Londonderry, United Kingdom

Average rainfall in October - Londonderry, United Kingdom
  • Average rainfall in October: 89mm

The wettest month (with the highest rainfall) is October (89mm).
The driest month (with the least rainfall) is May (51.2mm).

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Average rainfall days in October
Londonderry, United Kingdom

Average rainfall days in October - Londonderry, United Kingdom
  • Average rainfall days in October: 16 days

The month with the highest number of rainy days is November (19 days).
The month with the least rainy days is June (11 days).

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Average sea temperature in October
Londonderry, United Kingdom

Average sea temperature in October - Londonderry, United Kingdom
  • Average sea temperature in October: 13.3°C

The best month for swimming (with the highest average sea temperature) is August (14.7°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).

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Average daylight in October /
Average sunshine in October
Londonderry, United Kingdom

Average daylight in October / Average sunshine in October - Londonderry, United Kingdom
  • Average daylight in October: 10h and 3min

The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).

  • Average sunshine in October: 3h and 2min

The month with the most sunshine is May (Average sunshine: 6h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).

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Average UV index in October
Londonderry, United Kingdom

Average UV index in October - Londonderry, United Kingdom
  • Average UV index in October: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 0).

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Londonderry, United Kingdom

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