Offenburg, Germany — Weather in September 2026

Monthly climate averages for Offenburg, Germany. Based on 10-year ERA5 reanalysis data.

Cfb Oceanic
8.3 /10
Excellent

September is an excellent month in Offenburg

Climate Overview

Offenburg, Germany in September has warm conditions, with highs averaging 21.4°C (71°F). Rain falls on about 10 days this month.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 24°C (74°F) at the start to 18°C (65°F) by month's end.

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

Expect around 10.4h of sunshine at the start of September, decreasing to 8.2h by the end.

The warmest days tend to fall around the 5th, averaging 24.1°C (75°F).

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

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Monthly September Averages

Temperature
21°C / 13°C
Feels Like
21°C / 12°C
Rain
10 days · 63 mm
Sunshine
9.3h / day
Humidity
72% — Humid
Wind
12 km/h
Wind Direction
SSE (155°)
Gusts
30 km/h
Daylight
12.6 h
Cloud Cover
53%
Clear Sky Days
6
UV Index
4.1 — Moderate
Dew Point
12°C — Comfortable
Moon Phase
Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

32°C 28°C 24°C 20°C 16°C 12°C 8°C 4°C 151015202530
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202530
Rainfall

Daily Sunshine

0h 3h 6h 9h 12h 151015202530
Sunshine

Daily Wind Speed

0 4 8 12 16 20 151015202530
Wind Speed
Sun Position
Sunrise 07:06
Daylight 12.6h
Sunset 19:44

What to Expect

Daytime temperatures around 21°C (71°F) are ideal for full-day outdoor exploration.

Rain usually comes in shorter passing showers rather than all-day rain.

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

Compare Months

January
Poor
Temp
6°C / 0°C
Feels Like
2°C / -4°C
Rain
16days (106 mm) Wet
Sun
4.3h Fair
Humidity
82% Humid
UV
1.3 Low
Snow Days
7days
View Details
February
Poor
Temp
9°C / 1°C
Feels Like
5°C / -2°C
Rain
12days (81 mm) Wet
Sun
6h Fair
Humidity
78% Humid
UV
2 Low
Snow Days
3days
View Details
March
Poor
Temp
12°C / 3°C
Feels Like
9°C / -1°C
Rain
11days (70 mm) Wet
Sun
8h Good
Humidity
74% Muggy
UV
3.3 Moderate
Snow Days
1days
View Details
April
Fair
Temp
15°C / 5°C
Feels Like
13°C / 3°C
Rain
11days (65 mm) Wet
Sun
10.1h Excellent
Humidity
70% Muggy
UV
4.5 Moderate
Snow Days
1days
View Details
May best
Good
Temp
19°C / 10°C
Feels Like
18°C / 8°C
Rain
12days (85 mm) Wet
Sun
10.8h Excellent
Humidity
71% Muggy
UV
5.6 High
View Details
June best
Excellent
Temp
24°C / 15°C
Feels Like
25°C / 14°C
Rain
11days (78 mm) Wet
Sun
12.2h Excellent
Humidity
69% Muggy
UV
6.4 High
View Details
July best
Excellent
Temp
25°C / 16°C
Feels Like
26°C / 16°C
Rain
10days (62 mm) Wet
Sun
12.2h Excellent
Humidity
65% Muggy
UV
6.1 High
View Details
August best
Excellent
Temp
26°C / 16°C
Feels Like
26°C / 17°C
Rain
9days (52 mm) Wet
Sun
10.8h Excellent
Humidity
68% Muggy
UV
5.6 High
View Details
September best
Excellent
Temp
21°C / 13°C
Feels Like
21°C / 12°C
Rain
10days (63 mm) Wet
Sun
9.3h Good
Humidity
72% Muggy
UV
4.1 Moderate
View Details
October
Good
Temp
16°C / 9°C
Feels Like
15°C / 7°C
Rain
12days (78 mm) Wet
Sun
6.7h Fair
Humidity
79% Humid
UV
2.6 Moderate
View Details
November
Poor
Temp
10°C / 4°C
Feels Like
8°C / 1°C
Rain
13days (85 mm) Wet
Sun
5h Fair
Humidity
83% Humid
UV
1.5 Low
Snow Days
1days
View Details
December
Poor
Temp
7°C / 1°C
Feels Like
4°C / -2°C
Rain
15days (98 mm) Wet
Sun
3.8h Poor
Humidity
85% Humid
UV
1.1 Low
Snow Days
4days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 6°C / 0°C 2°C / -4°C 16days (106 mm) Wet 4.3h Fair 82% Humid 1.3 Low Poor View Details
February 9°C / 1°C 5°C / -2°C 12days (81 mm) Wet 6h Fair 78% Humid 2 Low Poor View Details
March 12°C / 3°C 9°C / -1°C 11days (70 mm) Wet 8h Good 74% Muggy 3.3 Moderate Poor View Details
April 15°C / 5°C 13°C / 3°C 11days (65 mm) Wet 10.1h Excellent 70% Muggy 4.5 Moderate Fair View Details
May best 19°C / 10°C 18°C / 8°C 12days (85 mm) Wet 10.8h Excellent 71% Muggy 5.6 High Good View Details
June best 24°C / 15°C 25°C / 14°C 11days (78 mm) Wet 12.2h Excellent 69% Muggy 6.4 High Excellent View Details
July best 25°C / 16°C 26°C / 16°C 10days (62 mm) Wet 12.2h Excellent 65% Muggy 6.1 High Excellent View Details
August best 26°C / 16°C 26°C / 17°C 9days (52 mm) Wet 10.8h Excellent 68% Muggy 5.6 High Excellent View Details
September best 21°C / 13°C 21°C / 12°C 10days (63 mm) Wet 9.3h Good 72% Muggy 4.1 Moderate Excellent View Details
October 16°C / 9°C 15°C / 7°C 12days (78 mm) Wet 6.7h Fair 79% Humid 2.6 Moderate Good View Details
November 10°C / 4°C 8°C / 1°C 13days (85 mm) Wet 5h Fair 83% Humid 1.5 Low Poor View Details
December 7°C / 1°C 4°C / -2°C 15days (98 mm) Wet 3.8h Poor 85% Humid 1.1 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 jacketSunscreen (SPF 30+)SunglassesComfortable walking shoes

Frequently Asked Questions

September is typically excellent for visiting Offenburg, with average highs of 21°C (71°F) and around 10 rainy days. Offenburg, Germany in September has warm conditions, with highs averaging 21.4°C (71°F). Rain falls on about 10 days thi
Offenburg typically sees around 10 rainy days in September with 63 mm (2.5 in) of total rainfall. An umbrella should suffice.
Evenings in Offenburg during September are mild at 13°C (55°F). A light cardigan is usually enough.
With highs of 21°C (71°F) and lows of 13°C (55°F) in September, we recommend: Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.
Yes, September offers some of the best weather conditions in Offenburg with comfortable temperatures and lower chances of rain.
The average UV index in Offenburg during September is 4 (moderate). Sunscreen and sunglasses are recommended during midday hours.
Offenburg gets approximately 13 hours of daylight per day in September, with around 9 hours of sunshine.
Snow is uncommon in Offenburg during September based on 10-year climate averages.

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