Unión de Reyes weather in December

In December, Unión de Reyes sees average daytime highs of 27°C and overnight lows near 19°C, with 18 mm of rain across 3 wet days and about 10.6 hours of daylight. It is the 11th-warmest and 12th-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 49% 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 Unión de Reyes's 4th-clearest and 4th-windiest month. For the whole year in context, see Unión de Reyes's year-round climate.

Daytime high
27°
11th warmest
Overnight low
19°
4th coldest
Rainfall
18 mm
3 wet days
Daylight
10 h 36 min
7:04 AM – 5:41 PM
Cloud cover
44%
4th clearest
Wind
12 km/h
4th windiest
Solar energy
3.81 kWh/m²
Travel score
7.7
out of 10

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 Unión de Reyes reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 30°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12820
22820
32820
42819
52819
62819
72819
82819
92819
102819
112819
122719
132719
142719
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302718
312718

How December really feels in Unión de Reyes

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.

Unión de Reyes weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°223.410.87.8
Feb28° / 18°182.911.27.5
Mar29° / 19°213.811.86.4
Apr31° / 21°355.812.55.1
May31° / 22°11314.213.14.0
Jun32° / 24°17120.613.43.0
Jul33° / 24°11519.613.32.9
Aug33° / 24°13420.912.82.8
Sep32° / 24°14721.412.13.0
Oct30° / 23°10315.611.54.3
Nov28° / 20°315.310.96.7
Dec27° / 19°18310.67.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 30%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27327
37327
47327
57327
67327
77327
87327
97228
107228
117129
127129
137030
147030
157030
167030
176931
186931
196832
206832
216832
226832
236832
246931
256931
266931
276931
287030
297030
307030
316931

Chance of precipitation in December

Any precipitation

Unión de Reyes gets around 18 mm of rain over 3 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 13% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
113
213
312
412
512
611
711
810
910
1010
1110
129
139
149
159
169
179
189
199
209
2110
2210
2310
2410
2510
2610
2710
2810
2910
3010
3110

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 54% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1311264515
2411254615
3411254614
4511244614
5511244614
6611234714
7611224713
8711224713
9712224713
10812214712
11812214712
12913214711
13913214611
14913224610
15101422459
16101422459
17101523448
18101523447
19101624447
20101624446
21101624446
22101624445
23101624445
24101724455
25101624454
26101624454
27101624464
28101623464
29111623464
30111622464
31111722463

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

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 6:55 AM to 7:11 AM, and sunset from 5:37 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.76:555:37
210.76:565:37
310.76:565:37
410.76:575:37
510.76:575:37
610.76:585:38
710.76:595:38
810.66:595:38
910.67:005:38
1010.67:015:39
1110.67:015:39
1210.67:025:39
1310.67:025:40
1410.67:035:40
1510.67:035:40
1610.67:045:41
1710.67:055:41
1810.67:055:41
1910.67:065:42
2010.67:065:42
2110.67:075:43
2210.67:075:43
2310.67:085:44
2410.67:085:44
2510.67:085:45
2610.67:095:45
2710.67:095:46
2810.67:105:46
2910.67:105:47
3010.67:105:47
3110.67:115:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.81 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.81 kWh/m² to a high of 6.52 kWh/m² in July across the year — December's 3.81 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.8Moderate
Planning a trip in December

Hazard calendar for Unión de Reyes

In seasonPeak

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

Unión de Reyes sits in the Atlantic hurricane belt; the season peaks August–October.

Unión de Reyes'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 Unión de Reyes?

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

7.7
Sightseeing
2nd-best month of the year
8.0
Beach & pool
3rd-best month of the year

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

What to pack for Unión de Reyes in December

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

In December, Unión de Reyes sees daytime highs around 27°C and nights near 19°C. Pack light clothes. About 3 days see rain.

light clothes

Sea temperature near Unión de Reyes in December

The nearest coast averages about 25°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 21 km away) is warmest in August at about 30°C and coldest in January near 24°C.

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

22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb24Warm
Mar25Warm
Apr27Warm
May28Tropical
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov26Warm
Dec25Warm

UV index in Unión de Reyes 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 Unión de Reyes peaks around June 18 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJun 18UV 12Dec 16UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar10Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct9Very high
Nov6High
Dec6High

Air quality in Unión de Reyes 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 Unión de Reyes is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1122 µg/m³Nov 228 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr12Good
May13Moderate
Jun22Moderate
Jul22Moderate
Aug19Moderate
Sep14Moderate
Oct11Good
Nov8Good
Dec8Good
Location & terrain

Where is Unión de Reyes?

Unión de Reyes sits at 22.8°N, 81.5°W, 57 m above sea level, in Cuba. The nearest listed city is Limonar, 21 km away.

Topography around Unión de Reyes

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

Within 3 km, the terrain around Unión de Reyes has only modest variations in elevation — a maximum elevation change of 52 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 266 m; within 80 km, significant variations in elevation — a maximum elevation change of 363 m.

The land around Unión de Reyes is covered by cropland (47%) and grassland (39%) within 3 km, trees (45%) and grassland (38%) within 16 km, and water (35%) and trees (24%) within 80 km.

3 km
52 m
16 km
266 m
80 km
363 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
December weather nearby: Limonar 21 km · Pedro Betancourt 27 km · Matanzas 28 km · Madruga 35 km · Jovellanos 35 km · Cárdenas 43 km · Varadero 50 km · Güines 50 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 Unión de Reyes (22.7953°, -81.5369°, elevation 57 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).