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Saint John Weather in December
December in Saint John sees daytime temperatures around 28°C (82°F) and lows of 25°C (77°F) at night. With around 60 mm (2.4 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Saint John in December
The climate data from previous years indicates about 21 days of rain, averaging 60 mm (2.4 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Saint John in December
December is one of the better months to visit Saint John. Expect 28°C (82°F) during the day and 25°C (77°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.
Saint John Temperature in December
Min Temperature
25°C (77°F)
Max Temperature
28°C (82°F)
Chance of Rain
69%
Precipitation
60 mm (2.4 in)
Rainy days
21 days
Saint John Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint John - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Saint John typically stay consistent throughout December, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in December
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Saint John in December
Browse day-by-day weather records for Saint John spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Saint John historical weather extremes in December
Based on 28 years of weather observations in Saint John between 1997 and 2025, these are the recorded extremes.
- On December 12, 1997, temperatures climbed to 33°C (91°F), marking the warmest December day on record.
- On December 29, 2010, Saint John saw its coldest December day with temperatures maxing out at 25°C (77°F).
- The coldest night in December in Saint John was on December 3, 2010, with a minimum of 19°C (66°F).
Best Places in US Virgin Islands in December
Find out more about the weather in US Virgin Islands and which places have the best travel conditions in this month. See all of US Virgin Islands in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Saint John in December
Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket.
What To Do in Saint John in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping7/10 -
Outdoor sports8/10
Saint John 3-Day Forecast
More climate data for Saint John
See the full Saint John climate overview or explore weather in US Virgin Islands.
Popular in December
Where to go in December - average daytime high across popular destinations.
Lindbergh Bay
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