Temperature
Pleasant by day, brisk at night.
67°Ftypical September high
Typical range
September climate
September in Bad Mergentheim
Germany · Europe
Mild days with cool nights and plenty of sun.
One of the best months here
Early to mid
Daytime high
67°F
Lows around 51°F
Rain
Several rainy days
Sun
8.5 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 10 wet days, the lowest monthly average.
33%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
A mix of sunshine and cloud.
8.7 hSeptember sunshine
Heat & humidity by month
ComfortableSeptember
Easy airWarm airHot airHumid air
Hourly temperature pattern
In September, afternoons feel about 63° and nights feel near 50°.
FreezingVery coldColdCoolComfortableNight hours
Clear sky
Partly cloudy skies this month.
41%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
6 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 67°F, easing to about 63°F in early evening.
Avg temp Typical range
Morning56°F
Rain18%
Cloud61%
Humid airLow
Sun intensityLow
Midday64°F
Rain22%
Cloud64%
Humid airLow
Sun intensityModerate
Late afternoon67°F
Rain20%
Cloud64%
Humid airLow
Sun intensityModerate
Early evening62°F
Rain15%
Cloud59%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 38 | 30 | 2.5 | 12 | 4.1 | 86 |
| Feb | 42 | 32 | 2.3 | 11 | 5.6 | 81 |
| Mar | 50 | 36 | 2.3 | 11 | 7.5 | 75 |
| Apr | 58 | 41 | 2.0 | 10 | 10.0 | 68 |
| May | 66 | 48 | 3.0 | 13 | 10.8 | 70 |
| Jun | 73 | 55 | 2.4 | 11 | 11.7 | 69 |
| Jul | 75 | 58 | 2.7 | 13 | 11.9 | 69 |
| Aug | 76 | 58 | 2.3 | 11 | 11.0 | 70 |
| Sep | 67 | 51 | 2.3 | 10 | 8.7 | 76 |
| Oct | 57 | 45 | 2.6 | 11 | 6.2 | 84 |
| Nov | 46 | 38 | 2.5 | 11 | 4.2 | 88 |
| Dec | 40 | 33 | 2.8 | 14 | 3.4 | 88 |
Similar climates
Similar
Similar travel styleAachenGermanySimilar travel styleAalborgDenmarkSimilar travel styleAarhusDenmarkSimilar travel styleAiudRomania
Want a side-by-side climate view? Compare Bad Mergentheim with Aachen.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology