When to go · St. Mary
St. Mary in September
Great month. Inside St. Mary's best window: Jun–Sep.
Key facts
- Verdict
- Great
- Temperature
- 18°C (64°F)64°F (18°C) / 4°C (39°F)39°F (4°C)
- average high / low
- Rain days
- 7
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside St. Mary's best window: Jun–Sep.
Is another month better than September?
No other month rates higher than September for St. Mary in this guide.
Weather in September
- St. MaryHighs around 18 °C (64 °F), lows around 4 °C (39 °F), rain on about 7 daysHighs around 64 °F (18 °C), lows around 39 °F (4 °C), rain on about 7 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 St. Mary, side by side.
Verdict
Sep: Great
Jun: Great
Daytime high
Sep: 18 °C (64 °F)64 °F (18 °C)
Jun: 19 °C (66 °F)66 °F (19 °C)
Night low
Sep: 4 °C (39 °F)39 °F (4 °C)
Jun: 6 °C (43 °F)43 °F (6 °C)
Rain days
Sep: 7 (better)
Jun: 10
Crowds
Sep: Medium
Jun: High
Prices
Sep: Medium
Jun: High
Festivals listed
Sep: 1
Jun: 0
September: Inside St. Mary's best window: Jun–Sep.
June: Inside St. Mary's best window: Jun–Sep.
St. Mary: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings