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 average high-temperature during October registers at a cool 12.5°C (54.5°F), maintaining a close resemblance to the previous month. Throughout October, Portstewart's nights experience a slight temperature dip to a frosty 9°C (48.2°F).Humidity
In October, the average relative humidity is 84%.Rainfall
In Portstewart, during October, the rain falls for 19.1 days and regularly aggregates up to 47mm (1.85") of precipitation. In Portstewart, during the entire year, the rain falls for 238.3 days and collects up to 632mm (24.88") of precipitation.Snowfall
In Portstewart, snow does not fall in May through October.Sea temperature
In Portstewart, the average seawater temperature in October is 13.3°C (55.9°F).Note: With the appropriate swimsuit, one can swim in 13.3°C (55.9°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
Daylight
In Portstewart, the average length of the day in October is 10h and 28min.On the first day of October, sunrise is at 7:30 am and sunset at 7:02 pm BST. On the last day of the month, sunrise is at 7:30 am and sunset at 4:50 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 in Portstewart is 3.9h.UV index
In Portstewart, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 during October translates into the following guidance:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the usual temperature for Portstewart in October?
What is the average humidity in October in Portstewart?
How many days does it rain in October in Portstewart?
When it does not snow in Portstewart?
Does it snow in Portstewart in October?
How cold is the water in October in Portstewart?
What is the average length of the day in October in Portstewart?
When are sunrise and sunset in October in Portstewart?
When does Daylight Saving Time (DST) end in October in Portstewart?
How many hours of sunshine does Portstewart have in October?
What is the UV index reading in October in Portstewart?
Average temperature in October
Portstewart, United Kingdom
- Average high temperature in October: 12.5°C
The warmest month (with the highest average high temperature) is July (16°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in October: 9°C
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (4°C).
Average pressure in October
Portstewart, United Kingdom
- Average pressure in October: 1011.2mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed in October
Portstewart, United Kingdom
- Average wind speed in October: 23.2km/h
The windiest month (with the highest average wind speed) is January (27.5km/h).
The calmest month (with the lowest average wind speed) is July (16.7km/h).
Average humidity in October
Portstewart, United Kingdom
- Average humidity in October: 84%
The months with the highest relative humidity are July and August (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall in October
Portstewart, United Kingdom
- Average rainfall in October: 47mm
The wettest months (with the highest rainfall) are July and August (74mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in October
Portstewart, United Kingdom
- Average rainfall days in October: 19.1 days
The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is April (16.8 days).
Average snowfall in October
Portstewart, United Kingdom
- Average snowfall in October: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in October
Portstewart, United Kingdom
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in October
Portstewart, United Kingdom
- Average sea temperature in October: 13.3°C
The best month for swimming (with the highest average sea temperature) is August (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight in October /
Average sunshine in October
Portstewart, 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 12min).
- Average sunshine in October: 3h and 5min
The month with the most sunshine is June (Average sunshine: 8h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in October
Portstewart, United Kingdom
- Average sunshine days in October: 8.3 days
The month with the most sunshine days is April (9.8 days).
The month with the least sunshine days is August (4.2 days).
Average UV index in October
Portstewart, United Kingdom
- Average UV index in October: 3
The months with the highest UV index are May, June, 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
Portstewart, United Kingdom
- Average cloud cover in October: 61
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in October
Portstewart, United Kingdom
- Average visibility in October: 9km
The month with the highest visibility is November (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
Portstewart, United Kingdom
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