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
The arrival of October corresponds with a light shift in temperature, down from an enjoyable 18.8°C (65.8°F) in September to a still refreshing 15°C (59°F). Throughout the nights in October, an average low-temperature of 8.9°C (48°F) is noted.Humidity
The average relative humidity in October in Harrow, United Kingdom, is 83%.Rainfall
In October, in Harrow, the rain falls for 12.5 days. Throughout October, 26mm (1.02") of precipitation is accumulated. In Harrow, during the entire year, the rain falls for 165.8 days and collects up to 345mm (13.58") of precipitation.Snowfall
In Harrow, snow does not fall in April through October.Daylight
The average length of the day in October is 10h and 40min.On the first day of the month, sunrise is at 7:03 am and sunset at 6:38 pm BST. On the last day of October, in Harrow, United Kingdom, sunrise is at 6:54 am and sunset at 4:35 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
The average sunshine in October is 4.6h.UV index
In Harrow, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 3 in October translates into the following instructions:
Take necessary precautions - Defending against sun damage is advocated. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Harrow in October?
What is the average humidity in October in Harrow?
How much does it rain in Harrow in October?
When it does not snow in Harrow?
Does it snow in Harrow in October?
How many hours of daylight does Harrow have in October?
When are sunrise and sunset in October in Harrow?
When does Daylight Saving Time (DST) end in October in Harrow?
How many hours of sunshine does Harrow have in October?
What is the UV index reading in October in Harrow?
Average temperature in October
Harrow, United Kingdom
- Average high temperature in October: 15°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in October: 8.9°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).
Average pressure in October
Harrow, United Kingdom
- Average pressure in October: 1015.1mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in October
Harrow, United Kingdom
- Average wind speed in October: 14.6km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in October
Harrow, United Kingdom
- Average humidity in October: 83%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in October
Harrow, United Kingdom
- Average rainfall in October: 26mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in October
Harrow, United Kingdom
- Average rainfall days in October: 12.5 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in October
Harrow, United Kingdom
- Average snowfall in October: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in October
Harrow, United Kingdom
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Harrow, United Kingdom
- Average daylight in October: 10h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in October: 4h and 4min
The months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in October
Harrow, United Kingdom
- Average sunshine days in October: 14.9 days
The month with the most sunshine days is December (16.3 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in October
Harrow, United Kingdom
- Average UV index in October: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Harrow, United Kingdom
- Average cloud cover in October: 55
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in October
Harrow, United Kingdom
- Average visibility in October: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
