Rorbas, Switzerland — Weather in September 2026

Climate Overview

Rorbas, Switzerland in September has mild conditions, with highs averaging 19.8°C (68°F) and noticeably cooler mornings. Rain falls on about 11 days this month.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 22°C (71°F) at the start to 17°C (63°F) by month's end.

September sees fairly even rainfall, totalling about 85 mm across the month.

Expect around 9.8h of sunshine at the start of September, decreasing to 8.0h by the end.

The warmest days tend to fall around the 5th, averaging 22.2°C (72°F).

Compared to August, this month is about 4°C cooler with 1 fewer rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

20°C / 12°C

Feels Like

20°C / 11°C

Rain

11 days · 86 mm

Sunshine

9.1h / day

Humidity

78% — Humid

Wind

10 km/h

Wind Direction

WNW (287°)

Gusts

26 km/h

Daylight

12.6 h

Cloud Cover

58%

Clear Sky Days

4.2

UV Index

4.3 — Moderate

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 07:04

Daylight 12.6h

Sunset 19:41

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	5°C / -1°C	1°C / -5°C	14days (105 mm) Wet	5.1h Fair	82% Humid	1.5 Low	Poor	View Details
February	8°C / 0°C	5°C / -4°C	11days (68 mm) Wet	6.5h Fair	78% Humid	2.2 Moderate	Poor	View Details
March	11°C / 2°C	8°C / -2°C	12days (73 mm) Wet	8.3h Good	74% Muggy	3.5 Moderate	Poor	View Details
April	14°C / 5°C	12°C / 2°C	12days (81 mm) Wet	10.1h Excellent	72% Muggy	4.9 Moderate	Fair	View Details
May	18°C / 9°C	17°C / 7°C	16days (122 mm) Wet	10.3h Excellent	74% Muggy	5.6 High	Good	View Details
June best	23°C / 14°C	24°C / 14°C	14days (120 mm) Wet	11.9h Excellent	73% Muggy	6.6 High	Excellent	View Details
July best	24°C / 15°C	25°C / 16°C	15days (97 mm) Wet	12h Excellent	70% Muggy	6.4 High	Excellent	View Details
August best	24°C / 16°C	25°C / 16°C	12days (120 mm) Wet	10.7h Excellent	73% Muggy	5.5 High	Excellent	View Details
September best	20°C / 12°C	20°C / 11°C	11days (86 mm) Wet	9.1h Good	78% Humid	4.3 Moderate	Excellent	View Details
October best	15°C / 8°C	14°C / 6°C	13days (82 mm) Wet	7h Good	82% Humid	2.8 Moderate	Good	View Details
November	9°C / 3°C	7°C / 0°C	14days (86 mm) Wet	5.4h Fair	85% Humid	1.7 Low	Poor	View Details
December	6°C / 0°C	3°C / -3°C	14days (94 mm) Wet	4.6h Fair	86% Very Muggy	1.2 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

Warm evening layerUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Rorbas?

September is typically excellent for visiting Rorbas, with average highs of 20°C (68°F) and around 11 rainy days. Rorbas, Switzerland in September has mild conditions, with highs averaging 19.8°C (68°F) and noticeably cooler mornings.

Does it rain a lot in Rorbas in September?

Rorbas typically sees around 11 rainy days in September with 86 mm (3.4 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Rorbas in September?

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

What should I pack for Rorbas in September?

With highs of 20°C (68°F) and lows of 12°C (54°F) in September, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Rorbas in September?

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

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

Rorbas gets approximately 13 hours of daylight per day in September, with around 9 hours of sunshine.

Does it snow in Rorbas in September?

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

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