Hemer, Germany — Weather in September 2026

Climate Overview

Hemer, Germany in September has mild conditions, with highs averaging 19.2°C (67°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 21°C (70°F) at the start to 17°C (62°F) by month's end.

September sees fairly even rainfall, totalling about 67 mm across the month.

Expect around 9.6h of sunshine at the start of September, decreasing to 7.5h by the end.

Wind speeds pick up through the month, from 14 km/h (9 mph) to 18 km/h (11 mph).

The warmest days tend to fall around the 5th, averaging 21.7°C (71°F).

Compared to August, this month is about 3°C cooler with 2 fewer rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

19°C / 12°C

Feels Like

18°C / 10°C

Rain

11 days · 68 mm

Sunshine

8.6h / day

Humidity

76% — Humid

Wind

16 km/h

Wind Direction

SSW (204°)

Gusts

34 km/h

Daylight

12.6 h

Cloud Cover

62%

Clear Sky Days

2.8

UV Index

4.1 — Moderate

Dew Point

11°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 07:05

Daylight 12.7h

Sunset 19:47

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	4°C / 0°C	0°C / -4°C	16days (97 mm) Wet	3.2h Poor	88% Very Muggy	1 Low	Poor	View Details
February	7°C / 1°C	3°C / -3°C	14days (82 mm) Wet	5.1h Fair	82% Humid	1.7 Low	Poor	View Details
March	10°C / 2°C	6°C / -2°C	13days (70 mm) Wet	7.1h Good	77% Humid	3.4 Moderate	Poor	View Details
April	13°C / 5°C	10°C / 1°C	12days (60 mm) Wet	9.6h Good	73% Muggy	4.4 Moderate	Fair	View Details
May best	17°C / 9°C	16°C / 6°C	12days (69 mm) Wet	10.8h Excellent	72% Muggy	5.8 High	Good	View Details
June best	22°C / 13°C	21°C / 12°C	10days (74 mm) Wet	11.3h Excellent	71% Muggy	6.3 High	Excellent	View Details
July best	22°C / 14°C	22°C / 13°C	13days (84 mm) Wet	11.1h Excellent	71% Muggy	5.8 High	Excellent	View Details
August best	23°C / 15°C	23°C / 14°C	13days (73 mm) Wet	10.3h Excellent	73% Muggy	5.3 High	Excellent	View Details
September best	19°C / 12°C	18°C / 10°C	11days (68 mm) Wet	8.6h Good	76% Humid	4.1 Moderate	Good	View Details
October	14°C / 9°C	12°C / 6°C	15days (86 mm) Wet	5.3h Fair	83% Humid	2.3 Moderate	Fair	View Details
November	9°C / 4°C	6°C / 0°C	14days (72 mm) Wet	4h Fair	87% Very Muggy	1.3 Low	Poor	View Details
December	6°C / 2°C	2°C / -2°C	15days (84 mm) Wet	2.6h Poor	89% 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

Warm evening layerUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Hemer?

September is typically good for visiting Hemer, with average highs of 19°C (67°F) and around 11 rainy days. Hemer, Germany in September has mild conditions, with highs averaging 19.2°C (67°F) and noticeably cooler mornings. Rain

Does it rain a lot in Hemer in September?

Hemer typically sees around 11 rainy days in September with 68 mm (2.7 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Hemer in September?

Nights in Hemer during September are cool at around 12°C (53°F). Bring a jacket or sweater for evenings.

What should I pack for Hemer in September?

With highs of 19°C (67°F) and lows of 12°C (53°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 Hemer?

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

What is the UV index in Hemer in September?

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

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

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

Does it snow in Hemer in September?

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

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