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Bright Future Dir.

Weather in September in Basel

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< September >
maximum temperature iconNormal Max/ High Temperature 22°C (72°F)
average temperature iconAverage Temperature 15°C (59°F)
minimum temperature iconMin/ Low Temperature 10°C (50°F)
rainfall iconNormal Precipitation 79mm (3.1in)
rain days iconNumber of Wet Days (probability of rain on a day) 12 (40%)
sunshine iconAverage Sunlight per day 05:09
daylight iconAverage Daylight per day 12:30
sunny or cloudy iconSunny (Cloudy) Daylight Hours 42% (58%)
sun altitude iconSun altitude at solar noon on the 21st day.

  • The average temperature in Basel is mild at 15 °C (59 °F).
  • Afternoons can be really warm with average high temperatures reaching 22 °C (71.6 °F).
  • Overnight temperatures are generally quite mild with an average low of 10 °C (50 °F).
  • In September the average diurnal temperature range/ variation is 12 °C (21.6 °F).
  • The weather in September is somewhat dry with rain occasionally. Just 79mm (3.1in) of liquid precipitates across on average 12 days.
  • In September the skies in Basel are slightly fair with an average of a mediocre 5:09 of resplendent sunlight per day.
  • The shortest day is 11:39 long and the longest day is 13:21 long with an average length of 12:30.
  • There are approximately 7:09 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 41.9% of daylight hours and cloudy 58.1% of daylight hours.

Weather Trend Graph for September in Basel, Switzerland

Graph of weather in Basel in September

Basel Weather in September Discussion


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