September Weather Averages for Sion

High Temp17°C63°F
Low Temp8°C46°F
Avg Temp12°C54°F
Sunshine Hours194 hours 
Rainfall124.52 mm4.90 In
Rain days10 days 
Pressure1018 mb31 In

 

Sion September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200917°C / 63°F9°C / 49°F13°C / 56°F174 hours82.92 mm / 3.26 In12 days1020 mb / 31 In
201015°C / 60°F6°C / 43°F10°C / 51°F215 hours146.12 mm / 5.75 In8 days1016 mb / 30 In
201119°C / 67°F9°C / 49°F14°C / 57°F262 hours143.94 mm / 5.67 In9 days1019 mb / 31 In
201217°C / 63°F7°C / 45°F12°C / 54°F224 hours144.72 mm / 5.70 In9 days1017 mb / 31 In
201317°C / 63°F8°C / 46°F12°C / 54°F198 hours169.24 mm / 6.66 In11 days1017 mb / 31 In
201417°C / 63°F7°C / 44°F11°C / 53°F228 hours72.13 mm / 2.84 In9 days1018 mb / 31 In
201514°C / 58°F7°C / 44°F10°C / 50°F161 hours166.13 mm / 6.54 In11 days1017 mb / 31 In
201617°C / 63°F8°C / 47°F13°C / 55°F200 hours124.91 mm / 4.92 In13 days1020 mb / 31 In
201713°C / 56°F5°C / 41°F9°C / 48°F170 hours124.99 mm / 4.92 In11 days1017 mb / 31 In
201818°C / 65°F9°C / 49°F13°C / 56°F257 hours107.12 mm / 4.22 In10 days1021 mb / 31 In
201917°C / 63°F9°C / 47°F12°C / 54°F216 hours106.42 mm / 4.19 In10 days1020 mb / 31 In
202019°C / 65°F10°C / 49°F14°C / 57°F120 hours116.51 mm / 4.59 In12 days1017 mb / 31 In
202120°C / 67°F10°C / 49°F14°C / 58°F187 hours83.20 mm / 3.28 In10 days1020 mb / 31 In
202217°C / 63°F8°C / 47°F12°C / 54°F164 hours190.40 mm / 7.50 In12 days1015 mb / 30 In
202318°C / 65°F8°C / 47°F12°C / 54°F252 hours64.69 mm / 2.55 In3 days1020 mb / 31 In
202413°C / 56°F4°C / 40°F8°C / 46°F143 hours170.28 mm / 6.70 In11 days1016 mb / 30 In
202514°C / 58°F5°C / 41°F9°C / 48°F135 hours207.20 mm / 8.16 In11 days1019 mb / 31 In
202627°C / 80°F14°C / 57°F20°C / 68°F194 hours20.40 mm / 0.80 In2 days1022 mb / 31 In

Need more than one day of Sion history?

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Weather history near Sion

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Sion weather history: common questions

How far back does Sion weather history go?

Hourly historical weather is available from 1 January 2009. Choose a date above, or pick a month at the top of the page for long-term averages.

Can I download Sion historical weather as a file?

Yes. Buy historical weather data as daily or hourly CSV, yearly monthly averages or monthly climate averages. A free sample download is available.

Is there an API for historical weather?

Yes. The WeatherAPI.com History API returns hourly weather for any past date from 2010, as JSON or XML. Get a free API key.

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