Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The advent of October sees the average high-temperature at a still moderate 13.4°C (56.1°F), subtly shifted from September's 15.2°C (59.4°F). Dún Laoghaire's nighttime temperatures in October display a slight drop from daytime highs, averaging to a chilly 9.9°C (49.8°F).Humidity
In Dún Laoghaire, the average relative humidity in October is 84%.Rainfall
In Dún Laoghaire, during October, the rain falls for 15.8 days and regularly aggregates up to 48mm (1.89") of precipitation. In Dún Laoghaire, during the entire year, the rain falls for 200.5 days and collects up to 530mm (20.87") of precipitation.Snowfall
In Dún Laoghaire, snow does not fall in April through October.Sea temperature
In Dún Laoghaire, the average seawater temperature in October is 14.1°C (57.4°F).Note: Beware of 14.1°C (57.4°F) waters at 13°C (55.4°F), they're uninviting, and a dip below 10°C (50°F) has risks of breath loss and cold shock, contingent on health.
Daylight
The average length of the day in October is 10h and 34min.On the first day of the month, sunrise is at 7:27 am and sunset at 7:00 pm IST. On the last day of October, sunrise is at 7:22 am and sunset at 4:54 pm GMT.
Note: On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from IST to GMT. Daylight Saving Time lasts until Sunday, 30. March 2025, at 1:00 am; consequently, the time zone reverts from GMT to IST.
Sunshine
The average sunshine in October is 4.5h.UV index
In October, the average daily maximum UV index in Dún Laoghaire, Ireland, is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 3 in October, converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the average October temperature in Dún Laoghaire?
What is the average humidity in October in Dún Laoghaire?
How many days does it rain in October in Dún Laoghaire?
When it does not snow in Dún Laoghaire?
Does it snow in Dún Laoghaire in October?
What is the water temperature in October in Dún Laoghaire?
What is the average length of the day in October in Dún Laoghaire?
What time are sunrise and sunset in October in Dún Laoghaire?
When does Daylight Saving Time (DST) start in October in Dún Laoghaire?
How long on average sun shines in October in Dún Laoghaire?
What is the UV index intensity in October in Dún Laoghaire?
Average temperature in October
Dún Laoghaire, Ireland
- Average high temperature in October: 13.4°C
The warmest months (with the highest average high temperature) are July and August (16.9°C).
The months with the lowest average high temperature are January and February (7.8°C).
- Average low temperature in October: 9.9°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).
Average pressure in October
Dún Laoghaire, Ireland
- Average pressure in October: 1012.8mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in October
Dún Laoghaire, Ireland
- Average wind speed in October: 21.1km/h
The windiest month (with the highest average wind speed) is December (25.9km/h).
The calmest month (with the lowest average wind speed) is July (15.9km/h).
Average humidity in October
Dún Laoghaire, Ireland
- Average humidity in October: 84%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (82%).
Average rainfall in October
Dún Laoghaire, Ireland
- Average rainfall in October: 48mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in October
Dún Laoghaire, Ireland
- Average rainfall days in October: 15.8 days
The month with the highest number of rainy days is July (20.4 days).
The months with the least rainy days are March and September (14.9 days).
Average snowfall in October
Dún Laoghaire, Ireland
- Average snowfall in October: 0mm
The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in October
Dún Laoghaire, Ireland
- Average snowfall days in October: 0 days
The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in October
Dún Laoghaire, Ireland
- Average sea temperature in October: 14.1°C
The best month for swimming (with the highest average sea temperature) is August (14.9°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in October /
Average sunshine in October
Dún Laoghaire, Ireland
- Average daylight in October: 10h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in October: 4h and 3min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 4h and 18min).
Average sunshine days in October
Dún Laoghaire, Ireland
- Average sunshine days in October: 9.5 days
The month with the most sunshine days is April (11.7 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in October
Dún Laoghaire, Ireland
- Average UV index in October: 3
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Dún Laoghaire, Ireland
- Average cloud cover in October: 54
The months with the most cloud cover are February and November (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in October
Dún Laoghaire, Ireland
- Average visibility in October: 10km
The months with the highest visibility are January, March, October and November (10km).
The months with the lowest visibility are February, April, May, June, July, August, September and December (9km).
Dún Laoghaire, Ireland
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