When to go · Tempe
Tempe in September
Avoid month. Listed as a month to avoid: Jun–Sep (extreme heat, 40°C (104°F)+ days).Avoid month. Listed as a month to avoid: Jun–Sep (extreme heat, 104°F (40°C)+ days).
Key facts
- Verdict
- Avoid
- Temperature
- 38°C (100°F)100°F (38°C) / 24°C (75°F)75°F (24°C)
- average high / low
- Rain days
- 3
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Listed as a month to avoid: Jun–Sep (extreme heat, 40°C (104°F)+ days).Listed as a month to avoid: Jun–Sep (extreme heat, 104°F (40°C)+ days).
Is another month better than September?
September is rated avoid. These months rate higher:
Weather in September
- TempeHighs around 38 °C (100 °F), lows around 24 °C (75 °F), rain on about 3 daysHighs around 100 °F (38 °C), lows around 75 °F (24 °C), rain on about 3 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.
Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.
Compare two months
Weather, crowds and prices for any two months in Tempe, side by side.
Verdict
Sep: Avoid
Jan: Great (better)
Daytime high
Sep: 38 °C (100 °F)100 °F (38 °C)
Jan: 19 °C (66 °F)66 °F (19 °C)
Night low
Sep: 24 °C (75 °F)75 °F (24 °C)
Jan: 6 °C (43 °F)43 °F (6 °C)
Rain days
Sep: 3 (better)
Jan: 4
Crowds
Sep: Medium
Jan: Low
Prices
Sep: Medium
Jan: Low
Festivals listed
Sep: 1
Jan: 0
September: Listed as a month to avoid: Jun–Sep (extreme heat, 40°C+ days).
January: Inside Tempe's best window: Nov–Mar.
Tempe: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen