October weather forecastGuernsey, Guernsey
October
Weather in October
October brings about a decisive shift in weather conditions in Guernsey. The average daily temperatures drop to 15.5°C (59.9°F), heralding the onset of cooler days. As the landscape starts to flaunt vivid autumn colours, more hours of daylight are replaced by increased cloud cover. The rainfall picks up, hinting at the rainy season ahead, but the island remains a visual treat. Brisk winds add to the feel of the changing season, offering an invigorating touch to the air.Temperature
During October, the average high-temperature is a mild 15.5°C (59.9°F), maintaining a close resemblance to that of the preceding month. October nights in Guernsey anticipate an average temperature of 13.6°C (56.5°F), a modest decline from the daytime.Humidity
In October, the average relative humidity in Guernsey is 79%.Rainfall
In October, in Guernsey, the rain falls for 18.5 days. Throughout October, 58mm (2.28") of precipitation is accumulated. Throughout the year, in Guernsey, there are 196.3 rainfall days, and 557mm (21.93") of precipitation is accumulated.Snowfall
In Guernsey, snow does not fall in February through December.Daylight
In October, the average length of the day in Guernsey is 10h and 46min.On the first day of October in Guernsey, sunrise is at 07:10 and sunset at 18:48 BST. On the last day of the month, sunrise is at 06:57 and sunset at 16:49 GMT.
Note: On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from BST to GMT. Daylight Saving Time starts again on Sunday, 30. March 2025, at 01:00; consequently, the time zone reverts from GMT to BST.
Sunshine
The average sunshine in October is 4.9h.UV index
The average daily maximum UV index in October in Guernsey is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 4 during October, leads to the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Guernsey, Guernsey
- Average high temperature in October: 15.5°C
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).
- Average low temperature in October: 13.6°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).
Average pressure in October
Guernsey, Guernsey
- Average pressure in October: 1015.7mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in October
Guernsey, Guernsey
- Average wind speed in October: 29.1km/h
The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).
Average humidity in October
Guernsey, Guernsey
- Average humidity in October: 79%
The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).
Average rainfall in October
Guernsey, Guernsey
- Average rainfall in October: 58mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).
Average rainfall days in October
Guernsey, Guernsey
- Average rainfall days in October: 18.5 days
The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).
Average snowfall in October
Guernsey, Guernsey
- Average snowfall in October: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in October
Guernsey, Guernsey
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in October /
Average sunshine in October
Guernsey, Guernsey
- Average daylight in October: 10h and 48min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in October: 4h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).
Average sunshine days in October
Guernsey, Guernsey
- Average sunshine days in October: 8.6 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).
Average UV index in October
Guernsey, Guernsey
- Average UV index in October: 4
The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in October
Guernsey, Guernsey
- Average cloud cover in October: 50
The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in October
Guernsey, Guernsey
- Average visibility in October: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
