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When to go · Portsmouth, Rhode Island

Portsmouth, Rhode Island in August

Great month. Inside Portsmouth, Rhode Island's best window: May–Oct; Sep–Oct for warm water and no crowds.

Key facts

Verdict
Great
Temperature
27°C (81°F) / 18°C (64°F)
average high / low
Rain days
9
Crowds
High
United States overall
Prices
High
United States overall

Verdict

GreatBest and avoid months for Portsmouth, Rhode Island

Inside Portsmouth, Rhode Island's best window: May–Oct; Sep–Oct for warm water and no crowds.

Is another month better than August?

No other month rates higher than August for Portsmouth, Rhode Island in this guide.

Weather in August

Long-term averages
  • Portsmouth, Rhode IslandHighs around 27 °C (81 °F), lows around 18 °C (64 °F), rain on about 9 days

Crowds and prices

Crowds · United States overall
High
Prices · United States overall
High

United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.

High-price month: see what to book ahead.

Compare two months

Weather, crowds and prices for any two months in Portsmouth, Rhode Island, side by side.

  • Verdict

    Aug: Great

    May: Great

  • Daytime high

    Aug: 27 °C (81 °F)

    May: 19 °C (66 °F)

  • Night low

    Aug: 18 °C (64 °F)

    May: 9 °C (48 °F)

  • Rain days

    Aug: 9 (better)

    May: 11

  • Crowds

    Aug: High

    May: Medium

  • Prices

    Aug: High

    May: Medium

  • Festivals listed

    Aug: 0

    May: 1

August: Inside Portsmouth, Rhode Island's best window: May–Oct; Sep–Oct for warm water and no crowds.

May: Inside Portsmouth, Rhode Island's best window: May–Oct; Sep–Oct for warm water and no crowds.

Portsmouth, Rhode Island: figures are long-term averages from this guide, not a forecast.

What to pack

Nothing unusual for the weather this month.

Build the full packing list for your trip →

Across United States in August →