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 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
October
Weather in October
Temperature
As Harlech welcomes October, the average high-temperature is noted at a cool 12.1°C (53.8°F), closely aligning with the preceding month. Registering an almost steady temperature, Harlech's nights in October see an average low of 7.2°C (45°F).Humidity
In Harlech, the average relative humidity in October is 90%.Rainfall
In Harlech, during October, the rain falls for 19.5 days and regularly aggregates up to 86mm (3.39") of precipitation. Throughout the year, there are 230 rainfall days, and 940mm (37.01") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Harlech, United Kingdom, the average length of the day in October is 10h and 35min.On the first day of October, sunrise is at 7:18 am and sunset at 6:53 pm BST. On the last day of the month, sunrise is at 7:12 am and sunset at 4:47 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 October, the average sunshine is 3.1h.UV index
In October, the average daily maximum UV index in Harlech, United Kingdom, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 3 during October translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Harlech?
What is the average humidity in October in Harlech?
How many days does it rain in October in Harlech?
When it does not snow in Harlech?
Does it snow in Harlech in October?
What is the average length of the day in October in Harlech?
What time are sunrise and sunset in October in Harlech?
When does Daylight Saving Time (DST) end in October in Harlech?
How many hours of sunshine does Harlech have in October?
How high is the UV index in October in Harlech?
Average temperature in October
Harlech, United Kingdom
- Average high temperature in October: 12.1°C
The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in October: 7.2°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average pressure in October
Harlech, United Kingdom
- Average pressure in October: 1013.7mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in October
Harlech, United Kingdom
- Average wind speed in October: 14.1km/h
The windiest month (with the highest average wind speed) is December (17.8km/h).
The calmest month (with the lowest average wind speed) is June (11.2km/h).
Average humidity in October
Harlech, United Kingdom
- Average humidity in October: 90%
The months with the highest relative humidity are January and December (91%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in October
Harlech, United Kingdom
- Average rainfall in October: 86mm
The wettest month (with the highest rainfall) is December (103mm).
The driest months (with the least rainfall) are April and May (52mm).
Average rainfall days in October
Harlech, United Kingdom
- Average rainfall days in October: 19.5 days
The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (15.3 days).
Average snowfall in October
Harlech, United Kingdom
- Average snowfall in October: 0mm
The month with the highest snowfall is January (70mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in October
Harlech, United Kingdom
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Harlech, United Kingdom
- Average daylight in October: 10h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in October: 3h and 1min
The months with the most sunshine are May and June (Average sunshine: 6h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in October
Harlech, United Kingdom
- Average sunshine days in October: 8.4 days
The month with the most sunshine days is March (10.8 days).
The month with the least sunshine days is August (5.9 days).
Average UV index in October
Harlech, United Kingdom
- Average UV index in October: 3
The months with the highest UV index are May, June and August (UV index 4).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in October
Harlech, United Kingdom
- Average cloud cover in October: 71
The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is April (Cloud cover 60).
Average visibility in October
Harlech, United Kingdom
- Average visibility in October: 8km
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (8km).
The months with the lowest visibility are August and September (7km).
