When to go · Hildesheim
Hildesheim in September
Great month. Inside Hildesheim's best window: May–Sep; December for the Christmas market.
Key facts
- Verdict
- Great
- Temperature
- 19°C (66°F)66°F (19°C) / 10°C (50°F)50°F (10°C)
- average high / low
- Rain days
- 9
- Crowds
- Medium
- Germany overall
- Prices
- High
- Germany overall
Verdict
Inside Hildesheim's best window: May–Sep; December for the Christmas market.
Is another month better than September?
No other month rates higher than September for Hildesheim in this guide.
Weather in September
- HildesheimHighs around 19 °C (66 °F), lows around 10 °C (50 °F), rain on about 9 daysHighs around 66 °F (19 °C), lows around 50 °F (10 °C), rain on about 9 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Oktoberfest (Munich) big impact
Mid Sep – early Oct (19 Sep – 4 Oct 2026) · Germany
Munich hotels triple in price; trains from Munich crowded in the evenings.
Crowds and prices
- Crowds · Germany overall
- Medium
- Prices · Germany overall
- High
Germany overall: Best all-round month; Oktoberfest starts in the second half and Munich prices triple.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Hildesheim, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 19 °C (66 °F)66 °F (19 °C)
May: 18 °C (64 °F)64 °F (18 °C)
Night low
Sep: 10 °C (50 °F)50 °F (10 °C)
May: 8 °C (46 °F)46 °F (8 °C)
Rain days
Sep: 9 (better)
May: 10
Crowds
Sep: Medium
May: Medium
Prices
Sep: High
May: Medium
Festivals listed
Sep: 1
May: 0
September: Inside Hildesheim's best window: May–Sep; December for the Christmas market.
May: Inside Hildesheim's best window: May–Sep; December for the Christmas market.
Hildesheim: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings