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Source checked: A source and a date are on record: we read it from an official or published page. Not yet confirmed on the ground.
Field checked: Someone checked it on the ground, with the date shown.
Plan calculated: Worked out by Voykit from its own data (times, distances, budgets). A calculation, not a measurement.

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When to go · Hyannis

Hyannis in January

Avoid month. Listed as a month to avoid: Jan–Mar (many businesses closed, ferries reduced); hurricane season peaks Aug–Oct.

Key facts

Verdict: Avoid
Temperature: 4°C (39°F)39°F (4°C) / −4°C (25°F)25°F (−4°C); average high / low
Rain days: 10
Crowds: Low; United States overall
Prices: Low; United States overall

Plan around it

Verdict

AvoidBest and avoid months for Hyannis

Listed as a month to avoid: Jan–Mar (many businesses closed, ferries reduced); hurricane season peaks Aug–Oct.

Is another month better than January?

January is rated avoid. These months rate higher:

Weather in January

Long-term averages

HyannisHighs around 4 °C (39 °F), lows around -4 °C (25 °F), rain on about 10 daysHighs around 39 °F (4 °C), lows around 25 °F (-4 °C), rain on about 10 days

Crowds and prices

Crowds · United States overall: Low
Prices · United States overall: Low

United States overall: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.

Compare two months

Weather, crowds and prices for any two months in Hyannis, side by side.

First month

Second month

Verdict
Jan: Avoid
May: Great (better)
Daytime high
Jan: 4 °C (39 °F)39 °F (4 °C)
May: 17 °C (63 °F)63 °F (17 °C)
Night low
Jan: -4 °C (25 °F)25 °F (-4 °C)
May: 9 °C (48 °F)48 °F (9 °C)
Rain days
Jan: 10
May: 10
Crowds
Jan: Low
May: Medium
Prices
Jan: Low
May: Medium
Festivals listed
Jan: 0
May: 1

January: Listed as a month to avoid: Jan–Mar (many businesses closed, ferries reduced); hurricane season peaks Aug–Oct.

May: Inside Hyannis's best window: Jun–Sep for ferries, beaches and whale watches; late May and September for lower prices.

Hyannis: figures are long-term averages from this guide, not a forecast.

What to pack

A warm coat, hat and gloves for mornings and evenings
A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across United States in January →