Puerto San José weather in December

In December, Puerto San José sees average daytime highs of 28°C and overnight lows near 24°C, with 11 mm of rain across 3 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 83% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Puerto San José's 3rd-clearest and 4th-windiest month. For the whole year in context, see Puerto San José's year-round climate.

Daytime high
28°
9th warmest
Overnight low
24°
2nd coldest
Rainfall
11 mm
3 wet days
Daylight
11 h 12 min
6:24 AM – 5:35 PM
Cloud cover
21%
3rd clearest
Wind
8 km/h
4th windiest
Solar energy
5.4 kWh/m²
Travel score
8.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical December day in Puerto San José reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°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)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

How December really feels in Puerto San José

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.

Puerto San José weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°4111.38.5
Feb28° / 24°3111.58.0
Mar29° / 25°113.711.97.1
Apr29° / 25°369.712.35.8
May29° / 25°18123.712.63.9
Jun28° / 25°28125.812.83.5
Jul29° / 25°17425.412.73.6
Aug28° / 25°21727.212.53.5
Sep28° / 25°31827.712.13.5
Oct28° / 25°28225.311.74.1
Nov28° / 24°6611.211.46.4
Dec28° / 24°11311.28.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 83% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 10%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28515
38614
48713
58812
68911
78911
89010
9919
10919
11919
12919
13919
14919
15919
16928
17928
18928
19928
20928
21928
22928
23928
24928
25928
26928
27919
28919
29919
30919
31919

Chance of precipitation in December

Any precipitation

Puerto San José gets around 11 mm of rain over 3 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 10% and peaks near 17% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
117
216
315
414
514
613
712
812
911
1011
1110
1210
1310
149
159
169
179
188
198
208
218
228
237
247
257
267
276
286
296
305
315

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 55% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1132967
2133066
3133066
4133066
5133165
6133165
7133264
8033265
9033364
10043462
11043462
12043561
13043660
14143758
15143857
16143956
17154054
18154153
19154252
20154450
21154550
22154648
23154748
24154747
25154846
26154846
27154945
28154945
29164944
30165043
31165142

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 12 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 5:30 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:165:30
211.26:165:30
311.26:175:31
411.26:185:31
511.26:185:31
611.26:195:31
711.26:195:32
811.26:205:32
911.26:205:32
1011.26:215:33
1111.26:215:33
1211.26:225:33
1311.26:225:34
1411.26:235:34
1511.26:235:34
1611.26:245:35
1711.26:245:35
1811.26:255:36
1911.26:255:36
2011.26:265:37
2111.26:265:37
2211.26:275:38
2311.26:275:38
2411.26:285:39
2511.26:285:39
2611.26:295:40
2711.26:295:40
2811.26:305:41
2911.26:305:41
3011.26:305:42
3111.26:315:42

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.4 kWh/m².

For context, solar energy here swings from a low near 4.95 kWh/m² to a high of 6.54 kWh/m² in March across the year — December's 5.4 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in December

Hazard calendar for Puerto San José

In seasonPeak

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

Puerto San José sits in the Atlantic hurricane belt; the season peaks August–October.

Puerto San José's monsoon runs May–October, when most of the year's rain falls.

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

Is December a good time to visit Puerto San José?

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

8.1
Sightseeing
2nd-best month of the year
8.6
Beach & pool
4th-best month of the year

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

What to pack for Puerto San José in December

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

In December, Puerto San José sees daytime highs around 28°C and nights near 24°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Puerto San José in December

The nearest coast averages about 29°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 30°C and coldest in January near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Puerto San José in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 (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 San José peaks around March 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 20UV 12Nov 23UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep10Very high
Oct10Very high
Nov8Very high
Dec8Very high

Air quality in Puerto San José 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 San José is worst in April — around 47 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorApr 2046 µg/m³Jul 2030 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb34Moderate
Mar37Poor
Apr47Poor
May44Poor
Jun31Moderate
Jul30Moderate
Aug30Moderate
Sep33Moderate
Oct37Poor
Nov40Poor
Dec37Poor
Location & terrain

Where is Puerto San José?

Puerto San José sits at 13.9°N, 90.8°W, 5 m above sea level, in Guatemala. The nearest listed city is La Gomera, 31 km away.

La GomeraMasaguaEscuintlaGuazacapánSanta Lucía CotzumalguapaPalínAlotenangoSanta María de Jesús

Topography around Puerto San José

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

Within 3 km, the terrain around Puerto San José has only modest variations in elevation — a maximum elevation change of 20 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 45 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,937 m.

The land around Puerto San José is covered by water (41%) and trees (20%) within 3 km, water (49%) and cropland (23%) within 16 km, and trees (34%) and water (34%) within 80 km.

3 km
20 m
16 km
45 m
80 km
3,937 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: La Gomera 31 km · Masagua 31 km · Escuintla 42 km · Guazacapán 47 km · Santa Lucía Cotzumalguapa 51 km · Palín 55 km · Alotenango 63 km · Santa María de Jesús 65 km

Guatemala travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 43% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
23.4
per 100k, 2023
Road deaths
22.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 510
Religion
Evangelical 46%Roman Catholic 42%none 11%

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 San José (13.9222°, -90.8191°, elevation 5 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).