When to go · Green River
Green River in September
Great month. Inside Green River's best window: May–Sep.
Key facts
- Verdict
- Great
- Temperature
- 24°C (75°F)75°F (24°C) / 6°C (43°F)43°F (6°C)
- average high / low
- Rain days
- 5
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside Green River's best window: May–Sep.
Is another month better than September?
No other month rates higher than September for Green River in this guide.
Weather in September
- Green RiverHighs around 24 °C (75 °F), lows around 6 °C (43 °F), rain on about 5 daysHighs around 75 °F (24 °C), lows around 43 °F (6 °C), rain on about 5 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 Green River, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 24 °C (75 °F)75 °F (24 °C)
May: 21 °C (70 °F)70 °F (21 °C)
Night low
Sep: 6 °C (43 °F)43 °F (6 °C)
May: 4 °C (39 °F)39 °F (4 °C)
Rain days
Sep: 5 (better)
May: 8
Crowds
Sep: Medium
May: Medium
Prices
Sep: Medium
May: Medium
Festivals listed
Sep: 1
May: 1
September: Inside Green River's best window: May–Sep.
May: Inside Green River's best window: May–Sep.
Green River: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings