St. George's weather in December

December in St. George's: hot, rainy, with clean air — fine if you can take sticky heat.

Updated September 2026 · climate normals from ERA5 reanalysis

St. George's🇬🇩 Grenada · Lesser Antilles · Island84
  1. 88Jan
  2. 89Feb
  3. 90Mar
  4. 89Apr
  5. 86May
  6. 80Jun
  7. 76Jul
  8. 78Aug
  9. 80Sep
  10. 75Oct
  11. 77Nov
  12. 84Dec

#6 of 12 months in St. George's · #353 of 1413 destinations to visit in December · comfort 84/100 (tier A)

Days
30°C
Nights
24°C
Wet days
17
Sun
10.1 h
Humidity
78%
Daylight
11 h
St. George's, Grenada
Photo: cwi · CC BY-SA 3.0

Traveller notes on St. George's in December

Notes from nearby Tobago (147 km away)

St. George's doesn't have its own notes for December yet — these are about Tobago, close enough to share the season.

Regulars are consistent that rain here typically arrives as a short, sharp shower that clears quickly rather than settling in for a full day, and that a whole vacation of all-day rain would be genuinely unusual even though this sits at the tail end of the wet season. Our row backs the real wetness behind that framing, 106mm of rain across a striking 18.8 days, alongside warm, humid conditions, 30.8C reading as a hot 33C at 79 percent humidity, over 24.1C nights, and a real 30.4 kph wind. Regulars flag the sea as noticeably choppier this time of year, not ideal for snorkeling even on an otherwise sunny day. One regular's caution is worth keeping in mind broadly: historical patterns aren't as reliable a guide as they used to be, with rain showing up in dry season and sun in wet season more often lately. The sea holds a warm 28.2C. The record: 10 hours of sun and one of the cleanest air readings in this project, AQI 39.
ShortShowerNotAllDayRain · December · 1 month ago · about Tobago · Read more on Tripadvisor ↗

Other months in St. George's

Forum posters describe September temperatures in the mid-80sF (around 29-30C), with brief daily showers - typically 15-30 minutes, often first thing in the morning or overnight - that posters describe as a welcome cooling-off rather than a disruption, with a full washout day happening maybe once every couple of weeks. Posters note one visitor's mid-September trip specifically saw heavy but short-lived rain that cleared quickly. Posters are consistent that while September falls within hurricane season, Grenada sits outside the main hurricane belt, citing only about three major storms in the past 50 years as evidence the risk here runs genuinely lower than further north in the Caribbean. Posters describe September as a quieter month with fewer tourists and easier hotel bookings. Posters generally rate September as warm, occasionally rainy but rarely disruptive for St. George's, with meaningfully lower hurricane risk than much of the wider Caribbean.
Tripadvisor community · September · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe March as squarely in the middle of Grenada's dry season, running January through June, and consistently rate it a good time to visit despite what online forecasts sometimes show - posters are direct that there are no real storms this time of year regardless of what a weather app predicts. Posters flag the so-called Easter winds as a genuine feature of this period, cooling things down but also kicking up loose sand on the beach. Posters describe daytime temperatures typically in the high 20s to low 30sC with overnight lows noticeably cooler, and generally rate any rain that does fall as brief showers rather than extended wet spells. Posters consistently rate March as a comfortable, reliably dry time to visit St. George's.
Tripadvisor community · March · 1 month ago · Read more on Tripadvisor ↗

Add your own note from St. George's's card on the map.

St. George's climate normals — December

Daytime high30°C / 87°F🥵 hot
Nighttime low24°C / 75°F
Feels like (high)33°C / 91°F
Sea temperature28°C / 82°F♨️ bath-warm
Rainfall83 mm / 3.2 in🌧 rainy
Rainy days17 days
Humidity78%💦 very humid
Dew point23°C / 74°F
Sunshine10.1 h/day
Daylight11.4 h
Wind31 km/h / 19 mph
Air quality (US AQI)44🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in St. George'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)

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Peak crowdsBusyShoulder seasonQuiet

Best months for St. George'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. George's's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in St. George's in December

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Cruise season

    1 Nov – 30 Apr · usuallyCrowded

    Ships berth at the Esplanade, a few minutes from the Carenage and the market, so the whole old town takes the load at once. Grand Anse and the spice tours book out by ten on a two-ship day.

What's on around the world in December →

Nearby, and something's on

Within 300 km of St. George's — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is St. George's?

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St. George's in December — FAQ

Is December a good time to visit St. George's?
December in St. George's: hot, rainy, with clean air — fine if you can take sticky heat. It ranks #6 of 12 months for St. George's on SeasonMap's comfort score (84/100).
What is the weather like in St. George's in December?
In December, St. George's averages a daily high of 30.3°C and a low of 24°C, with about 82.5 mm of rain over roughly 16.9 rainy days.
What is the air quality in St. George's in December?
St. George's has a mean US Air Quality Index of about 44 in December.

Within 300 km: Tobago's Seabirds on Little Tobago around 1 Oct – 30 Jun, and Castries' ARC finish at Rodney Bay on 25 Nov – 22 Dec.