September verdict

Grindelwald, Switzerland in September

Weather score24Poor

Poor for holiday weather

Average highs are around 6°C, so pack for cooler days. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 148mm, so some wet days are possible.

September weather

Monthly averages

Temp

6°C

Rain

148mm

Sun

5.8h

Weather score

24

Poor

Seasonal climate calendar

TemperatureTemp
RainRain
SunSun
Weather scoreWeather score

Trip feel

Cool

Average highs are around 6°C, so pack for cooler days.

Showers

Rainfall averages 148mm, so some wet days are possible.

Some sun

Sunshine averages 5.8h per day, enough for a balanced month.

Map

Weather map

Compare Grindelwald, Switzerland with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

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September6°C average high

September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

September148mm average rain

September sits near Grindelwald's yearly rainfall average, so rain is a normal planning factor rather than an outlier.

Driest monthsJanuary to April and September to December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

September5.8 hours average sun

September is brighter than Grindelwald's yearly average, though the strongest sunshine usually sits closer to the peak months.

Brightest monthsJune to August

This stretch has the strongest sunshine in the monthly averages.

Weather score

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September24 weather score

September is close to Grindelwald's usual weather score, with limited month-to-month change.

Best weather monthsAll year

The weather score stays consistently strong through the year.

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