Locking, United Kingdom — Weather in September 2026

Climate Overview

Locking, United Kingdom in September has mild conditions, with highs averaging 18.3°C (65°F) and noticeably cooler mornings. Rain falls on about 12 days this month. Sea temperature stays cool at 17.7°C (64°F).

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 20°C (67°F) at the start to 16°C (62°F) by month's end.

Rainfall is heaviest during the last third of the month, while the middle tends to be drier.

Expect around 7.3h of sunshine at the start of September, decreasing to 6.7h by the end.

Wind speeds pick up through the month, from 21 km/h (13 mph) to 25 km/h (16 mph).

The warmest days tend to fall around the 5th, averaging 19.9°C (68°F).

Compared to August, this month is about 2°C cooler with 1 more rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

18°C / 12°C

Feels Like

17°C / 10°C

Rain

12 days · 87 mm

Sunshine

7.6h / day

Humidity

80% — Very Humid

Wind

23 km/h

Wind Direction

WSW (255°)

Gusts

40 km/h

Daylight

12.6 h

Cloud Cover

68%

Clear Sky Days

1.7

UV Index

3.9 — Moderate

Sea Temperature

18°C

Dew Point

12°C — Comfortable

Moon Phase

Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:48

Daylight 12.7h

Sunset 19:29

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	8°C / 3°C	4°C / -1°C	13days (71 mm) Wet	3.9h Poor	85% Humid	1.1 Low	Poor	View Details
February	9°C / 4°C	5°C / 0°C	12days (66 mm) Wet	5h Fair	82% Humid	1.6 Low	Poor	View Details
March	11°C / 5°C	7°C / 0°C	14days (74 mm) Wet	6.6h Fair	81% Humid	3.4 Moderate	Poor	View Details
April	13°C / 6°C	10°C / 2°C	10days (53 mm) Wet	9.4h Good	76% Humid	4.6 Moderate	Fair	View Details
May best	17°C / 9°C	15°C / 7°C	10days (56 mm) Wet	10.7h Excellent	76% Humid	5.6 High	Good	View Details
June best	19°C / 12°C	18°C / 10°C	11days (59 mm) Wet	10.5h Excellent	76% Humid	6.3 High	Good	View Details
July best	21°C / 14°C	20°C / 13°C	10days (57 mm) Wet	10.9h Excellent	75% Muggy	5.9 High	Excellent	View Details
August best	21°C / 14°C	19°C / 13°C	11days (64 mm) Wet	9.6h Good	77% Humid	5.3 High	Excellent	View Details
September best	18°C / 12°C	17°C / 10°C	12days (87 mm) Wet	7.6h Good	80% Humid	3.9 Moderate	Good	View Details
October	15°C / 10°C	13°C / 7°C	14days (99 mm) Wet	5.8h Fair	83% Humid	2.5 Moderate	Fair	View Details
November	11°C / 7°C	8°C / 3°C	14days (88 mm) Wet	4.3h Fair	84% Humid	1.3 Low	Fair	View Details
December	9°C / 5°C	6°C / 1°C	14days (89 mm) Wet	3.1h Poor	87% Very Muggy	0.8 Low	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Locking?

September is typically good for visiting Locking, with average highs of 18°C (65°F) and around 12 rainy days. Locking, United Kingdom in September has mild conditions, with highs averaging 18.3°C (65°F) and noticeably cooler morni

Does it rain a lot in Locking in September?

Locking typically sees around 12 rainy days in September with 87 mm (3.4 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Locking in September?

Nights in Locking during September are cool at around 12°C (54°F). Bring a jacket or sweater for evenings.

What should I pack for Locking in September?

With highs of 18°C (65°F) and lows of 12°C (54°F) in September, we recommend: Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

Is September among the best months weather-wise in Locking?

Yes, September offers some of the best weather conditions in Locking with comfortable temperatures and lower chances of rain.

What is the UV index in Locking in September?

The average UV index in Locking during September is 4 (moderate). Sunscreen and sunglasses are recommended during midday hours.

How many hours of daylight are there in Locking in September?

Locking gets approximately 13 hours of daylight per day in September, with around 8 hours of sunshine.

Does it snow in Locking in September?

Snow is uncommon in Locking during September based on 10-year climate averages.

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