Saint George's weather in December

In December, Saint George's sees average daytime highs of 27°C and overnight lows near 26°C, with 76 mm of rain across 15.2 wet days and about 11.3 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 55% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 18 min at the start of December to 11 h 18 min by month's end. Set against the rest of the year, December is Saint George's's 4th-clearest and 6th-windiest month. For the whole year in context, see Saint George's's year-round climate.

Daytime high
27°
8th warmest
Overnight low
26°
4th coldest
Rainfall
76 mm
15.2 wet days
Daylight
11 h 18 min
6:24 AM – 5:42 PM
Cloud cover
43%
4th clearest
Wind
27 km/h
6th windiest
Solar energy
4.99 kWh/m²
Travel score
6.0
out of 10

Saint George's is capital of Grenada.

Founded
1650

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical December day in Saint George's reaches about 27°C in the afternoon and slips back to 26°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 27°C. Set against its neighbours, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12726
22726
32726
42726
52726
62726
72726
82726
92726
102726
112726
122726
132726
142726
152726
162726
172726
182726
192726
202726
212726
222726
232725
242725
252725
262725
272725
282725
292725
302725
312725

How December really feels in Saint George's

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Saint George's weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°4812.111.46.8
Feb26° / 25°227.611.67.3
Mar26° / 25°266.311.97.5
Apr27° / 26°317.412.37.0
May27° / 26°5511.912.56.2
Jun27° / 26°11719.312.75.0
Jul27° / 26°14223.212.64.7
Aug28° / 26°15623.812.44.5
Sep28° / 26°14320.212.14.4
Oct28° / 26°1602311.74.4
Nov28° / 26°1612211.44.7
Dec27° / 26°7615.211.36.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26535
36535
46535
56733
66832
76832
86931
96931
107030
117129
127228
137228
147327
157426
167426
177426
187525
197624
207624
217624
227723
237822
247822
257921
267921
278020
288119
298119
308218
318317

Chance of precipitation in December

Any precipitation

Saint George's gets around 76 mm of rain over 15.2 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 50% and peaks near 63% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
163
262
361
460
558
657
756
855
954
1053
1152
1251
1351
1450
1550
1649
1748
1848
1947
2047
2146
2246
2345
2445
2544
2644
2743
2842
2942
3041
3141

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the oppressive band about 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
138710
23889
33898
44888
54897
64897
75896
85896
95905
106895
116904
126904
137903
147903
157903
167912
177912
187921
197921
207921
217921
227930
237930
247930
257930
267930
277930
287930
297930
307930
318920

Wind in December

Winds average 27 km/h in December.

Across December, daily wind ranges from about 25 km/h on the calmest days to 28 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
125breezy
225breezy
325breezy
426breezy
526breezy
626breezy
726breezy
826breezy
926breezy
1026breezy
1126breezy
1226breezy
1327breezy
1427breezy
1527breezy
1627breezy
1727breezy
1827breezy
1927breezy
2027breezy
2127breezy
2227breezy
2328breezy
2428breezy
2528breezy
2628breezy
2728breezy
2828breezy
2928breezy
3028breezy
3128breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 18 min at the start of December to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:16 AM to 6:31 AM, and sunset from 5:37 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:165:37
211.36:175:37
311.36:185:38
411.36:185:38
511.36:195:38
611.36:195:38
711.36:205:39
811.36:205:39
911.36:215:39
1011.36:215:40
1111.36:225:40
1211.36:225:40
1311.36:235:41
1411.36:235:41
1511.36:245:42
1611.36:245:42
1711.36:255:42
1811.36:255:43
1911.36:265:43
2011.36:265:44
2111.36:275:44
2211.36:275:45
2311.36:285:45
2411.36:285:46
2511.36:295:46
2611.36:295:47
2711.36:295:47
2811.36:305:48
2911.36:305:48
3011.36:315:49
3111.36:315:49

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.99 kWh/m².

For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 6.57 kWh/m² in April across the year — December's 4.99 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Saint George's

In seasonPeak

In December, Saint George's sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Saint George's sits in the Atlantic hurricane belt; the season peaks August–October.

Saint George's's rainy season runs June–December, when most of the year's rain falls.

Saint George's sees seasonal dust haze (June), heaviest in June.

Atlantic hurricane
Rainy season
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Saint George's?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.0
Sightseeing
6th-best month of the year
6.0
Beach & pool
6th-best month of the year

December is a reasonable time to visit Saint George's for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Saint George's in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Saint George's sees daytime highs around 27°C and nights near 26°C. Pack rain gear. Worth having: light clothes, sun protection and a windbreaker. About 15 days see rain.

rain gearlight clothessun protectiona windbreaker

Sea temperature near Saint George's in December

The nearest coast averages about 28°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in September at about 29°C and coldest in February near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr27Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Saint George's in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint George's peaks around March 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 22UV 14Dec 14UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Saint George's in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Saint George's is worst in June — around 32 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (January, 13 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1731 µg/m³Jan 913 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar16Moderate
Apr19Moderate
May23Moderate
Jun32Moderate
Jul26Moderate
Aug19Moderate
Sep14Moderate
Oct17Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Saint George's?

Saint George's sits at 12.1°N, 61.8°W, 6 m above sea level, in Grenada. The nearest listed city is Calliaqua, 134 km away.

Topography around Saint George's

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint George's.

Within 3 km, the terrain around Saint George's has significant variations in elevation — a maximum elevation change of 327 m around an average of 55 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 827 m; within 80 km, large variations in elevation — a maximum elevation change of 799 m.

The land around Saint George's is covered by water (46%) and trees (43%) within 3 km, water (71%) and trees (27%) within 16 km, and water (96%) within 80 km.

3 km
327 m
16 km
827 m
80 km
799 m
treesgrasslandartificial surfaceswater
December weather nearby: Calliaqua 134 km · Kingstown 135 km · Scarborough 147 km · Diego Martin 150 km · Port of Spain 156 km · Laventille 159 km · Tunapuna 161 km · Paradise 161 km

Grenada travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$12,107
2025
Safe drinking water
90%
of population, 2017
Homicide rate
13.7
per 100k, 2023
Road deaths
8
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 49%Roman Catholic 36%none 6%other 6%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Saint George's (12.0529°, -61.7523°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).