Puerto Rico weather in December

In December, Puerto Rico sees average daytime highs of 26°C and overnight lows near 16°C, with 141 mm of rain across 19.2 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 8th-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 7% of the time in December, and the air most often feels humid.

Daylight stretches from about 11 h 54 min at the start of December to 11 h 54 min by month's end. Set against the rest of the year, December is Puerto Rico's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Puerto Rico's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
16°
7th coldest
Rainfall
141 mm
19.2 wet days
Daylight
11 h 54 min
6:00 AM – 5:54 PM
Cloud cover
74%
2nd clearest
Wind
4 km/h
3rd windiest
Solar energy
5.12 kWh/m²
Travel score
5.2
out of 10

Puerto Rico is capital of Puerto Rico municipality, Caquetá Department, Colombia.

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 Puerto Rico reaches about 26°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52617
62617
72617
82617
92617
102617
112617
122617
132616
142616
152616
162616
172616
182616
192616
202616
212616
222616
232616
242616
252616
262616
272616
282616
292616
302616
312616

Puerto Rico weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 16°8012.811.96.0
Feb26° / 17°10114.711.95.4
Mar26° / 17°17524.1124.3
Apr25° / 17°20027.1123.9
May24° / 17°19527.712.14.0
Jun23° / 16°18125.912.14.0
Jul23° / 16°16825.312.14.3
Aug24° / 16°10020.312.15.1
Sep25° / 16°9021124.9
Oct25° / 16°16624.3124.3
Nov26° / 17°2262611.94.0
Dec26° / 16°14119.211.95.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 77%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11486
21486
31585
41585
51585
61684
71684
81783
91882
101882
111981
122080
132080
142179
152179
162278
172377
182377
192476
202575
212674
222674
232872
242971
253070
263169
273268
283466
293466
303565
313565

Chance of precipitation in December

Any precipitation

Puerto Rico gets around 141 mm of rain over 19.2 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 62% and peaks near 76% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
176
275
374
473
572
671
770
870
969
1068
1167
1266
1365
1464
1563
1662
1762
1861
1960
2059
2158
2256
2355
2453
2552
2650
2749
2848
2947
3047
3146

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1088210
2088210
319819
419819
5110818
6110827
7111817
8112816
9112816
10113815
11114805
12115804
13116794
14116794
15117784
16119764
17220744
18221734
19222733
20223723
21324703
22326683
23427663
24428653
25529642
26630622
27631612
28731602
29832582
30832582
31933562

Wind in December

Winds average 4 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 54 min at the start of December to 11 h 54 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 5:53 AM to 6:07 AM, and sunset from 5:47 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:535:47
211.95:545:48
311.95:545:48
411.95:555:48
511.95:555:49
611.95:565:49
711.95:565:50
811.95:565:50
911.95:575:50
1011.95:575:51
1111.95:585:51
1211.95:585:52
1311.95:595:52
1411.95:595:53
1511.96:005:53
1611.96:005:54
1711.96:015:54
1811.96:015:54
1911.96:025:55
2011.96:025:55
2111.96:025:56
2211.96:035:56
2311.96:035:57
2411.96:045:57
2511.96:045:58
2611.96:055:58
2711.96:055:59
2811.96:065:59
2911.96:066:00
3011.96:076:00
3111.96:076:01

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.12 kWh/m².

For context, solar energy here swings from a low near 3.95 kWh/m² to a high of 5.48 kWh/m² in September across the year — December's 5.12 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in December

Is December a good time to visit Puerto Rico?

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

5.2
Sightseeing
3rd-best month of the year
4.9
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Puerto Rico for sightseeing.

What to pack for Puerto Rico in December

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

In December, Puerto Rico sees daytime highs around 26°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 19 days see rain.

rain gearlight clothessun protection

UV index in Puerto Rico in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Puerto Rico peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 13UV 15Dec 12UV 11
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May14Extreme
Jun13Extreme
Jul12Extreme
Aug11Extreme
Sep14Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Air quality in Puerto Rico 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 Puerto Rico is worst in February — around 54 µg/m³ PM2.5 (poor), about 5.3× the cleanest month (July, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodModerateFeb 1650 µg/m³Jul 1210 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb54Poor
Mar29Moderate
Apr19Moderate
May13Moderate
Jun11Good
Jul10Good
Aug13Moderate
Sep14Moderate
Oct13Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Puerto Rico?

Puerto Rico sits at 1.9°N, 75.2°W, 259 m above sea level, in Colombia. The nearest listed city is El Doncello, 29 km away.

Topography around Puerto Rico

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

Within 3 km, the terrain around Puerto Rico has only modest variations in elevation — a maximum elevation change of 240 m around an average of 266 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,995 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,253 m.

The land around Puerto Rico is covered by grassland (60%) and trees (33%) within 3 km, trees (58%) and grassland (41%) within 16 km, and trees (57%) and grassland (42%) within 80 km.

3 km
240 m
16 km
1,995 m
80 km
3,253 m
treesgrasslandartificial surfaceswater
December weather nearby: El Doncello 29 km · Florencia 59 km · Garzón 61 km · Guadalupe 68 km · Gigante 68 km · Tarqui 77 km · Campoalegre 88 km · Rivera 97 km

Colombia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 / 240 V · 60 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$8,562
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
74%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
15.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 480
Religion
Roman Catholic 64%Protestant 17%none 14%atheist 1%

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 Puerto Rico (1.91°, -75.1593°, elevation 259 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. 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).