When to go · Stony Brook
Stony Brook in July
Avoid month. Listed as a month to avoid: Jul–Aug (humid, beach crowds), Jan–Feb (cold, some seasonal closures).
Key facts
- Verdict
- Avoid
- Temperature
- 28°C (82°F)82°F (28°C) / 19°C (66°F)66°F (19°C)
- average high / low
- Rain days
- 9
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Listed as a month to avoid: Jul–Aug (humid, beach crowds), Jan–Feb (cold, some seasonal closures).
Is another month better than July?
July is rated avoid. These months rate higher:
Weather in July
- Stony BrookHighs around 28 °C (82 °F), lows around 19 °C (66 °F), rain on about 9 daysHighs around 82 °F (28 °C), lows around 66 °F (19 °C), rain on about 9 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.
Independence Day big impact
4 Jul · United States
Fireworks and parades; parks, beaches and flights busy.
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Peak season: parks full, 4 July crowds, 40 °C+ in the desert, humid East. Alaska and the Pacific Northwest are at their best.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Stony Brook, side by side.
Verdict
Jul: Avoid
May: Great (better)
Daytime high
Jul: 28 °C (82 °F)82 °F (28 °C)
May: 20 °C (68 °F)68 °F (20 °C)
Night low
Jul: 19 °C (66 °F)66 °F (19 °C)
May: 10 °C (50 °F)50 °F (10 °C)
Rain days
Jul: 9 (better)
May: 11
Crowds
Jul: High
May: Medium
Prices
Jul: High
May: Medium
Festivals listed
Jul: 1
May: 1
July: Listed as a month to avoid: Jul–Aug (humid, beach crowds), Jan–Feb (cold, some seasonal closures).
May: Inside Stony Brook's best window: May–Jun, Sep–Oct.
Stony Brook: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.