SeasonScore
Xi'an, China
Photo: David Castor · Public domain

China

Xi'an in September

🍂 Autumn

Pleasant and some showers. Watch for hazy air.

🎒 Pack: compact umbrella or rain jacket · N95 mask for hazy days

Best months: May (8.7), Apr (8.4), Sep (8.2)

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Why September scores 8.2What goes into the score

How it works
🌡️ 25° / 16°C🌧️ 117 mm💧 dew pt 15°🍃 PM2.5 46
  • Weather comfort9.0
    • ✓Comfortable temperatures (25°C highs / 16°C lows)
    • ✓Slightly humid (dew point 15.2°C)
    • !Wet: ~117 mm rain, ~4 heavy-rain days
  • Air quality4.5
    • !Unhealthy for sensitive groups (PM2.5 ~46 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut September side by side with another month
SepMay
Score8.2 Very good8.7 Excellent
Season🍂 Autumn🌷 Spring
High / low25° / 16°27° / 14°
Rain117 mm68 mm
Humiditydew pt 15°dew pt 11°
PM2.546 µg/m³35 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Xi'an weather-station normals. Rainfall: Xi'an weather-station normals (national met service).

Holidays & crowdsSeptember 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

Other public holidays: Mid-Autumn Festival (15 Sep)

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Nature calendarBlossoms, leaves & seasons in Xi'an

  • Snowy daysTypical dates
    Snow likely Nov–Mar (most in Jan: ~5 days)

    Average number of days with snowfall at Xi'an.

    Source: Xi'an weather-station normals (national weather service, via Wikipedia climate table)

Explore Xi'anEvents, sights, food & souvenirs

Check event dates locally

A former imperial capital in China's Shaanxi province and the eastern start of the Silk Road, famous for the Terracotta Army and its intact city walls.

Events in September
Mid-Autumn FestivalAcross China

Mooncakes, lanterns and family reunions under the full moon.

Coming up later

National Day Golden WeekEvery year1–7 October every year

A week-long national holiday.

Why go: The Terracotta Army sees huge crowds; avoid if possible.

Where: All major attractions

Chinese New Year and lantern displaysDate variesLunar calendar — late January to mid-February, date moves each year

Lantern displays are installed on the city walls.

Why go: Attractions are very crowded during the holiday.

Where: City Wall and Tang Paradise