Rhu, United Kingdom — Weather in September 2026

Climate Overview

Rhu, United Kingdom in September has mild conditions, with highs averaging 15.2°C (59°F) and noticeably cooler mornings. Rain falls on about 17 days this month, totalling around 148 mm.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 17°C (62°F) at the start to 14°C (56°F) by month's end.

September sees fairly even rainfall, totalling about 147 mm across the month.

Expect around 7.0h of sunshine at the start of September, decreasing to 6.2h by the end.

The warmest days tend to fall around the 6th, averaging 17.5°C (64°F).

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

Monthly September Averages

Temperature

15°C / 10°C

Feels Like

14°C / 8°C

Rain

17 days · 148 mm

Sunshine

6.8h / day

Humidity

87% — Very Humid

Wind

18 km/h

Wind Direction

SW (228°)

Gusts

45 km/h

Daylight

12.7 h

Cloud Cover

77%

Clear Sky Days

0.7

UV Index

3.1 — Moderate

Dew Point

10°C — Comfortable

Moon Phase

Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:51

Daylight 12.8h

Sunset 19:37

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	6°C / 1°C	2°C / -3°C	17days (148 mm) Wet	2.8h Poor	92% Very Muggy	0.7 Low	Poor	View Details
February	7°C / 2°C	3°C / -2°C	19days (174 mm) Wet	4.7h Fair	89% Very Muggy	1.2 Low	Wet	View Details
March	8°C / 2°C	5°C / -1°C	17days (130 mm) Wet	6.6h Fair	85% Humid	2.5 Moderate	Poor	View Details
April	11°C / 4°C	8°C / 0°C	13days (77 mm) Wet	9h Good	80% Humid	3.7 Moderate	Poor	View Details
May best	15°C / 7°C	13°C / 5°C	14days (98 mm) Wet	10.4h Excellent	79% Humid	4.9 Moderate	Fair	View Details
June best	17°C / 10°C	16°C / 8°C	17days (126 mm) Wet	10.2h Excellent	81% Humid	5 Moderate	Fair	View Details
July best	17°C / 12°C	17°C / 10°C	17days (126 mm) Wet	9.6h Good	84% Humid	4.6 Moderate	Fair	View Details
August best	17°C / 12°C	16°C / 10°C	19days (164 mm) Wet	8.9h Good	86% Very Muggy	4.3 Moderate	Wet	View Details
September best	15°C / 10°C	14°C / 8°C	17days (148 mm) Wet	6.8h Fair	87% Very Muggy	3.1 Moderate	Fair	View Details
October	12°C / 7°C	9°C / 4°C	19days (185 mm) Wet	4.8h Fair	89% Very Muggy	1.5 Low	Wet	View Details
November	8°C / 4°C	5°C / 0°C	16days (147 mm) Wet	3.4h Poor	91% Very Muggy	0.8 Low	Poor	View Details
December	7°C / 2°C	3°C / -1°C	18days (174 mm) Wet	2.1h Poor	93% Very Muggy	0.4 Low	Wet	View Details

What to Wear

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility between indoors and outdoors.

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

Packing List

Layered clothingLight jacketUmbrellaWaterproof jacketWaterproof shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Rhu?

September is typically fair for visiting Rhu, with average highs of 15°C (59°F) and around 17 rainy days. Rhu, United Kingdom in September has mild conditions, with highs averaging 15.2°C (59°F) and noticeably cooler mornings.

Does it rain a lot in Rhu in September?

Rhu typically sees around 17 rainy days in September with 148 mm (5.8 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Rhu in September?

Nights in Rhu during September are cool at around 10°C (49°F). Bring a jacket or sweater for evenings.

What should I pack for Rhu in September?

With highs of 15°C (59°F) and lows of 10°C (49°F) in September, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Waterproof shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Rhu in September?

The average UV index in Rhu during September is 3 (moderate). Sunscreen and sunglasses are recommended during midday hours.

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

Rhu gets approximately 13 hours of daylight per day in September, with around 7 hours of sunshine.

Does it snow in Rhu in September?

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

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