St. John's weather in December
December in St. John's: hot, a little rain, with clean air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#5 of 12 months in St. John's · #141 of 1413 destinations to visit in December · comfort 89/100 (tier A)
- Days
- 29°C
- Nights
- 23°C
- Wet days
- 13
- Sun
- 10 h
- Humidity
- 75%
- Daylight
- 11 h

Traveller notes on St. John's in December
Other months in St. John's
Forum posters describe October as usually Antigua's wettest month, though posters are quick to add that doesn't mean much by the island's generally dry standards - evenings stay warm and humid around 75F, days remain hot enough for sunbathing, and the island still sees roughly 7 hours of sunshine on an average day. Posters describe rain as often torrential when it comes but rarely long-lasting, and note Antigua's central mountain range creates a genuine 'dry side' and 'rainy side': the south and southwest see meaningfully more rain than the north and northeast, where St. John's itself sits, and which can go weeks without significant rain even in October. Posters are direct that October remains technically within hurricane season, adding genuine uncertainty on top of the routine rain pattern. Posters generally rate October as St. John's own driest-side experience of Antigua's wettest month, warm and mostly sunny with real but often brief rain and a background hurricane-season risk.
Forum posters consistently describe April as pleasantly hot and one of the drier months on an island that's already fairly dry overall, with daytime temperatures typically in the low-to-mid 80sF and evenings only a few degrees cooler. Posters are direct that any daytime rain usually passes quickly - a 'rain' forecast here typically means 10-15 minutes of showers followed immediately by sunshine again - and consistently warn not to trust online weather forecasts for Caribbean islands, which tend to over-predict rain. Posters also flag real geographic variation from Antigua's central mountain range, with a noticeably rainier south/southwest side and a drier north/northeast side that can go weeks without rain. Posters generally rate April as a good, comfortable month to visit St. John's and the wider island.
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St. John's climate normals — December
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in St. John's in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyCruise season, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for St. John's's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSt. John's's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in St. John's in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Cruise season
1 Nov – 30 Apr · usuallyCrowdedThe port logged 431 calls and over 800,000 passengers in 2025, the bulk of them in the northern winter, and up to five ships can be alongside at once. Heritage Quay works to their hours: before ten and after four the town is its own again. Source ↗
Nearby, and something's on
Within 300 km of St. John's — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is St. John's?
St. John's in December — FAQ
- Is December a good time to visit St. John's?
- December in St. John's: hot, a little rain, with clean air — an excellent time to visit. It ranks #5 of 12 months for St. John's on SeasonMap's comfort score (89/100).
- What is the weather like in St. John's in December?
- In December, St. John's averages a daily high of 29.3°C and a low of 23.3°C, with about 39.1 mm of rain over roughly 13.3 rainy days.
- What is the air quality in St. John's in December?
- St. John's has a mean US Air Quality Index of about 38 in December.
Within 300 km: Pointe-à-Pitre's Careme, the dry season around 1 Dec – 30 Apr, and Philipsburg's Cruise ship season around 1 Nov – 30 Apr.