Falmouth weather in December

In December, Falmouth sees average daytime highs of 26°C and overnight lows near 25°C, with 60 mm of rain across 13.5 wet days and about 11 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 71% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 06 min at the start of December to 11 hours by month's end. Set against the rest of the year, December is Falmouth's 4th-clearest and 5th-windiest month. For the whole year in context, see Falmouth's year-round climate.

Daytime high
26°
8th warmest
Overnight low
25°
5th coldest
Rainfall
60 mm
13.5 wet days
Daylight
11 hours
6:34 AM – 5:33 PM
Cloud cover
35%
4th clearest
Wind
26 km/h
5th windiest
Solar energy
4.6 kWh/m²
Travel score
6.6
out of 10

Falmouth is town in Antigua, Antigua and Barbuda.

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 26°C through the month.

A typical December day in Falmouth reaches about 26°C in the afternoon and slips back to 25°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 about 1°C cooler than November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12725
22725
32725
42725
52725
62725
72725
82725
92725
102725
112725
122625
132625
142625
152625
162625
172625
182625
192625
202625
212625
222625
232625
242625
252625
262625
272625
282625
292625
302625
312625

How December really feels in Falmouth

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.

Falmouth weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 24°3310.211.17.3
Feb25° / 24°227.311.47.7
Mar25° / 24°216.411.97.8
Apr26° / 25°338.612.47.2
May27° / 26°591212.86.4
Jun27° / 26°5111.9136.2
Jul28° / 26°8016.312.95.7
Aug28° / 26°10318.412.65.2
Sep28° / 26°13118.112.14.8
Oct28° / 26°14119.611.65.1
Nov27° / 26°10315.711.25.8
Dec26° / 25°6013.5116.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18317
28317
38317
48317
58317
68317
78317
88317
98317
108317
118416
128416
138416
148515
158614
168614
178614
188614
198614
208515
218515
228515
238614
248614
258812
268812
278812
288911
298911
308911
319010

Chance of precipitation in December

Any precipitation

Falmouth gets around 60 mm of rain over 13.5 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 43% and peaks near 47% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
144
244
344
445
545
646
746
846
947
1047
1147
1247
1347
1447
1546
1646
1745
1844
1943
2042
2142
2241
2340
2440
2539
2639
2738
2838
2938
3037
3137

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 75% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1317791
2318781
3318781
4318781
5318781
6318790
7318790
8318790
9318790
10318790
11218800
12218800
13218800
14219790
15219790
16220780
17221770
18222760
19223750
20224740
21225730
22226720
23227710
24227710
25228700
26229690
27230680
28230680
29231670
30232660
31233650

Wind in December

Winds average 26 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
425breezy
525breezy
625breezy
726breezy
826breezy
926breezy
1026breezy
1126breezy
1226breezy
1326breezy
1426breezy
1526breezy
1626breezy
1727breezy
1827breezy
1927breezy
2027breezy
2127breezy
2227breezy
2327breezy
2427breezy
2527breezy
2627breezy
2727breezy
2828breezy
2928breezy
3028breezy
3128breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 06 min at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:25 AM to 6:40 AM, and sunset from 5:29 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:255:29
211.06:265:29
311.06:265:29
411.06:275:29
511.06:285:29
611.06:285:30
711.06:295:30
811.06:295:30
911.06:305:30
1011.06:305:31
1111.06:315:31
1211.06:315:31
1311.06:325:32
1411.06:335:32
1511.06:335:33
1611.06:345:33
1711.06:345:33
1811.06:355:34
1911.06:355:34
2011.06:365:35
2111.06:365:35
2211.06:375:36
2311.06:375:36
2411.06:385:37
2511.06:385:37
2611.06:385:38
2711.06:395:38
2811.06:395:39
2911.06:405:39
3011.06:405:40
3111.06:405:40

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.6 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.6 kWh/m² to a high of 6.7 kWh/m² in April across the year — December's 4.6 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.7Bright
314.7Bright
Planning a trip in December

Hazard calendar for Falmouth

In seasonPeak

None of Falmouth's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Falmouth sits in the Atlantic hurricane belt; the season peaks August–October.

Falmouth's rainy season runs July–November, when most of the year's rain falls.

Falmouth sees seasonal dust haze (July), heaviest in July.

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

Is December a good time to visit Falmouth?

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

6.6
Sightseeing
5th-best month of the year
6.4
Beach & pool
7th-best month of the year

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

What to pack for Falmouth in December

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

In December, Falmouth sees daytime highs around 26°C and nights near 25°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 14 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Falmouth in December

The nearest coast averages about 27°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 15 km away) is warmest in September at about 29°C and coldest in February near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May27Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Falmouth in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Falmouth peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 24UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Falmouth 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 Falmouth is worst in July — around 24 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1124 µg/m³Dec 238 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar9Good
Apr11Good
May14Moderate
Jun24Moderate
Jul24Moderate
Aug20Moderate
Sep16Moderate
Oct17Moderate
Nov11Good
Dec8Good
Location & terrain

Where is Falmouth?

Falmouth sits at 17.0°N, 61.8°W, 0 m above sea level, in Antigua and Barbuda. The nearest listed city is English Harbour, 2.0 km away.

St. John'sCodrington

Topography around Falmouth

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Falmouth.

Within 3 km, the terrain around Falmouth has significant variations in elevation — a maximum elevation change of 336 m around an average of 63 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 391 m; within 80 km, large variations in elevation — a maximum elevation change of 1,011 m.

The land around Falmouth is covered by trees (57%) and water (20%) within 3 km, water (67%) and trees (21%) within 16 km, and water (95%) within 80 km.

3 km
336 m
16 km
391 m
80 km
1,011 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: English Harbour 2.0 km · St. John's 12 km · Brades 53 km · Plymouth 58 km · Codrington 68 km · Sainte-Rose 78 km · Baie-Mahault 87 km · Les Abymes 89 km

Antigua and Barbuda travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
230 V · 60 Hz
Prices
≈ 69% of US
price level, 2025
GDP per capita
$24,819
2025
Homicide rate
10.7
per 100k, 2023
Road deaths
0
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 68%other 12%Roman Catholic 8%none 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 Falmouth (17.0274°, -61.7814°, elevation 0 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).