Mariel weather in December

In December, Mariel sees average daytime highs of 26°C and overnight lows near 21°C, with 27 mm of rain across 5 wet days and about 10.6 hours of daylight. It is the 10th-warmest and 11th-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 51% of the time in December, and the air most often feels muggy.

Daylight stretches from about 10 h 42 min at the start of December to 10 h 36 min by month's end. Set against the rest of the year, December is Mariel's 4th-clearest and 4th-windiest month. For the whole year in context, see Mariel's year-round climate.

Daytime high
26°
10th warmest
Overnight low
21°
4th coldest
Rainfall
27 mm
5 wet days
Daylight
10 h 36 min
7:09 AM – 5:45 PM
Cloud cover
44%
4th clearest
Wind
16 km/h
4th windiest
Solar energy
3.73 kWh/m²
Travel score
7.7
out of 10

Mariel is locality in Artemisa, Cuba.

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 Mariel reaches about 26°C in the afternoon and slips back to 21°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 28°C. Set against its neighbours, December runs about 1°C cooler than November and about 1°C warmer than January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12721
22721
32621
42621
52621
62621
72621
82621
92621
102621
112621
122621
132621
142621
152621
162621
172621
182621
192621
202621
212621
222621
232620
242620
252620
262620
272620
282620
292620
302620
312620

How December really feels in Mariel

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.

Mariel weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 20°355.310.77.8
Feb26° / 20°284.211.28.0
Mar27° / 21°224.111.87.8
Apr29° / 22°304.612.56.8
May30° / 24°8810.413.15.4
Jun30° / 25°1271713.44.0
Jul31° / 26°7616.513.33.9
Aug31° / 26°10017.512.83.7
Sep30° / 25°12719.212.13.8
Oct29° / 24°9213.711.55.1
Nov27° / 22°367.210.97.1
Dec26° / 21°27510.67.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 31%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27228
37228
47228
57129
67129
77129
87129
97030
107030
116931
126931
136931
146931
156931
166931
176931
186832
196832
206832
216832
226832
236832
246931
256931
266931
276931
286931
296931
306832
316832

Chance of precipitation in December

Any precipitation

Mariel gets around 27 mm of rain over 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 17% and peaks near 19% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
319
419
519
618
718
818
918
1018
1118
1218
1318
1417
1517
1617
1717
1817
1917
2017
2116
2216
2316
2415
2515
2615
2715
2814
2914
3014
3114

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 58% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1210234520
2310224520
3310224520
4310214520
5411204520
6411204520
7412194520
8512194420
9513194420
10513184419
11514184319
12615184219
13615184219
14616194118
15616194118
16617204017
17717204017
18717213916
19717213915
20717223914
21717234014
22717234013
23717234012
24717244112
25816244111
26816244111
27815244211
28915234211
29915234211
301015234210
311015224210

Wind in December

Winds average 16 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 42 min at the start of December to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:00 AM to 7:16 AM, and sunset from 5:41 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.77:005:41
210.77:015:42
310.77:015:42
410.77:025:42
510.77:035:42
610.67:035:42
710.67:045:42
810.67:055:43
910.67:055:43
1010.67:065:43
1110.67:065:43
1210.67:075:44
1310.67:085:44
1410.67:085:44
1510.67:095:45
1610.67:095:45
1710.67:105:45
1810.67:105:46
1910.67:115:46
2010.67:115:47
2110.67:125:47
2210.67:125:48
2310.67:135:48
2410.67:135:49
2510.67:145:49
2610.67:145:50
2710.67:155:50
2810.67:155:51
2910.67:155:51
3010.67:165:52
3110.67:165:52

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.73 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.73 kWh/m² to a high of 6.66 kWh/m² in July across the year — December's 3.73 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.7Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.7Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.8Moderate
Planning a trip in December

Hazard calendar for Mariel

In seasonPeak

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

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

Mariel's rainy season runs May–October, when most of the year's rain falls.

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

Is December a good time to visit Mariel?

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

7.7
Sightseeing
4th-best month of the year
7.3
Beach & pool
4th-best month of the year

December is one of the better times to visit Mariel for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Mariel in December

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

In December, Mariel sees daytime highs around 26°C and nights near 21°C. Worth packing: light clothes. About 5 days see rain.

light clothes

Sea temperature near Mariel 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 19 km away) is warmest in August at about 30°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°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr27Warm
May27Warm
Jun28Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov28Warm
Dec27Warm

UV index in Mariel in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mariel peaks around June 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 20UV 12Dec 16UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar10Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct9Very high
Nov6High
Dec6High

Air quality in Mariel 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 Mariel is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1221 µg/m³Nov 218 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar11Good
Apr12Moderate
May13Moderate
Jun21Moderate
Jul21Moderate
Aug19Moderate
Sep14Moderate
Oct11Good
Nov8Good
Dec8Good
Location & terrain

Where is Mariel?

Mariel sits at 23.0°N, 82.8°W, 16 m above sea level, in Cuba. The nearest listed city is Guanajay, 10 km away.

Topography around Mariel

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

Within 3 km, the terrain around Mariel has only modest variations in elevation — a maximum elevation change of 95 m around an average of 27 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 257 m; within 80 km, large variations in elevation — a maximum elevation change of 654 m.

The land around Mariel is covered by trees (27%), grassland (27%) and water (22%) within 3 km, water (36%), trees (31%) and grassland (24%) within 16 km, and water (55%) and trees (22%) within 80 km.

3 km
95 m
16 km
257 m
80 km
654 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: Guanajay 10 km · Artemisa 20 km · Bauta 21 km · Alquízar 27 km · San Antonio de los Baños 28 km · Balcón de la Lisa 32 km · Güira de Melena 33 km · Marianao 34 km

Cuba travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C / L
110 V · 60 Hz
Prices
≈ 39% of US
price level, 2011
GDP per capita
$9,605
2020
Happiness
5.4 / 10
World Happiness, 2011
Homicide rate
4.5
per 100k, 2019
Road deaths
8.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 515
Religion
Christian 59%none 23%folk religion 18%

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 Mariel (22.9898°, -82.7542°, elevation 16 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).