Weymouth Weather in December

December in Weymouth typically sees daytime highs of 7°C (45°F) and nighttime lows of -2°C (28°F). As the wettest month of the year, expect more snow/rainfall than other months. It falls within the winter season.

Rainfall in Weymouth in December

This month is known for heavy rainfall, so don't forget your umbrella to stay dry. Snow/rain is expected on roughly 13 days, totalling around 138 mm (5.4 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Weymouth in December

Daytime highs in Weymouth in December reach 7°C (45°F), with nights around -2°C (28°F). During December, you'll experience the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows of -2°C (28°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.

Sunshine in Weymouth in December

The city usually sees around 141 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Weymouth in December

Wind speeds average 7 m/s (14 knots) during December. At this speed, you experience strong wind that can make entire trees sway and create resistance when walking. Since this is an average, expect variation from moderate windy periods to particularly gusty days when umbrellas become difficult to control.

Average water temperature in December

With water temperatures around 8°C (46°F), swimming isn't really an option for most visitors. The cold sets in quickly and a wetsuit won't fully solve it.

December in Weymouth can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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• January
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For a detailed overview over the year and the best time to visit the United States of America, check out our Weymouth's climate page.

Weymouth Temperature in December

Min Temperature -2°C (28°F)  

Max Temperature 7°C (45°F)  

Water Temperature 8°C (46°F) *  

Chance of Rain 43%  

Precipitation 138 mm (5.4 in)  

Rainy days 13 days  

Humidity 66% *  

Windspeed 7 m/s (14 knots) *  

Sunshine 141 hours *  

Percentage Sunshine 50% *  

* Data from: Boston, the United States of America (17 KM, 11 Miles).

What to Wear in Weymouth in December

We recommend to layer up for chilly conditions in Weymouth in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With water temperatures around 8°C (46°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Weymouth in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

1/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Weymouth's climate page.

More climate data for Weymouth

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Weymouth climate overview or explore weather in the United States of America.