Guazacapán weather in December

In December, Guazacapán sees average daytime highs of 29°C and overnight lows near 22°C, with 11 mm of rain across 3.5 wet days and about 11.2 hours of daylight. It is the 6th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 82% of the time in December, and the air most often feels muggy.

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 Guazacapán's 3rd-clearest and 4th-windiest month. For the whole year in context, see Guazacapán's year-round climate.

Daytime high
29°
6th warmest
Overnight low
22°
2nd coldest
Rainfall
11 mm
3.5 wet days
Daylight
11 h 12 min
6:23 AM – 5:33 PM
Cloud cover
22%
3rd clearest
Wind
7 km/h
4th windiest
Solar energy
5.42 kWh/m²
Travel score
6.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Guazacapán reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12923
22923
32923
42923
52923
62923
72923
82923
92923
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312922

How December really feels in Guazacapán

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.

Guazacapán weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°41.211.37.0
Feb30° / 23°41.211.56.7
Mar30° / 23°134.511.96.0
Apr30° / 24°4110.712.35.0
May29° / 25°19524.612.63.5
Jun29° / 24°27927.112.83.2
Jul29° / 24°19326.712.73.3
Aug29° / 24°22228.312.53.2
Sep28° / 24°33028.512.13.1
Oct28° / 24°29126.311.73.6
Nov29° / 23°7412.511.35.4
Dec29° / 22°113.511.26.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 9%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28515
38614
48713
58812
68812
79010
89010
99010
10928
11928
12928
13928
14928
15928
16928
17928
18928
19928
20928
21937
22937
23937
24937
25937
26937
27937
28937
29937
30937
31937

Chance of precipitation in December

Any precipitation

Guazacapán gets around 11 mm of rain over 3.5 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 11% and peaks near 20% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
120
219
318
417
516
615
714
814
913
1013
1112
1212
1311
1411
1510
1610
1710
1810
199
209
219
229
239
248
258
268
277
287
297
306
316

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 88% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10174349
20174447
30174646
40164845
50165043
60165142
70165241
80165439
90165538
100165538
111175437
121275436
131285435
141285534
151295434
1612105532
1702105731
1802115730
1902115829
2002125927
2103125926
2203126025
2303126124
2403126322
2503126421
2603126520
2704136419
2804136518
2904136518
3004146517
3104146616

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
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 6:15 AM to 6:29 AM, and sunset from 5:28 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:155:28
211.26:155:28
311.26:165:29
411.26:165:29
511.26:175:29
611.26:175:29
711.26:185:30
811.26:185:30
911.26:195:30
1011.26:195:31
1111.26:205:31
1211.26:215:31
1311.26:215:32
1411.26:225:32
1511.26:225:33
1611.26:235:33
1711.26:235:33
1811.26:245:34
1911.26:245:34
2011.26:255:35
2111.26:255:35
2211.26:265:36
2311.26:265:36
2411.26:275:37
2511.26:275:37
2611.26:275:38
2711.26:285:38
2811.26:285:39
2911.26:295:39
3011.26:295:40
3111.26:295:40

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.42 kWh/m².

For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 6.57 kWh/m² in March across the year — December's 5.42 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in December

Hazard calendar for Guazacapán

In seasonPeak

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

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

Guazacapán'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 Guazacapán?

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

6.7
Sightseeing
2nd-best month of the year
8.7
Beach & pool
3rd-best month of the year

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

What to pack for Guazacapán in December

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

In December, Guazacapán sees daytime highs around 29°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Guazacapán 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 at the nearest coast (about 23 km away) 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 Guazacapán 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 Guazacapán peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 highApr 10UV 13Dec 11UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep10Very high
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Guazacapán 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 Guazacapán 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 Guazacapán?

Guazacapán sits at 14.1°N, 90.4°W, 265 m above sea level, in Guatemala. The nearest listed city is Cuilapa, 26 km away.

CuilapaBarberenaFraijanesJalpataguaPuerto San JoséVilla CanalesEscuintlaPalín

Topography around Guazacapán

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

Within 3 km, the terrain around Guazacapán has significant variations in elevation — a maximum elevation change of 436 m around an average of 286 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,945 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,937 m.

The land around Guazacapán is covered by trees (55%) and grassland (39%) within 3 km, trees (49%) and grassland (37%) within 16 km, and trees (43%) and water (23%) within 80 km.

3 km
436 m
16 km
1,945 m
80 km
3,937 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Cuilapa 26 km · Barberena 27 km · Fraijanes 44 km · Jalpatagua 45 km · Puerto San José 47 km · Villa Canales 47 km · Escuintla 47 km · Palín 47 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 Guazacapán (14.0742°, -90.4167°, elevation 265 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).