Masagua weather in December

In December, Masagua sees average daytime highs of 28°C and overnight lows near 18°C, with 27 mm of rain across 7.4 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 28°C through the month. The sky is clear or mostly clear about 76% of the time in December, and the air most often feels humid.

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

Daytime high
28°
6th warmest
Overnight low
18°
2nd coldest
Rainfall
27 mm
7.4 wet days
Daylight
11 h 12 min
6:25 AM – 5:35 PM
Cloud cover
26%
3rd clearest
Wind
6 km/h
4th windiest
Solar energy
5.29 kWh/m²
Travel score
6.8
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 Masagua reaches about 28°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32818
42818
52818
62818
72818
82818
92818
102818
112818
122818
132818
142818
152818
162818
172818
182818
192818
202818
212818
222818
232818
242818
252818
262818
272818
282818
292818
302918
312918

Masagua 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
Jan29° / 18°103.111.37.1
Feb30° / 18°92.711.56.6
Mar30° / 19°297.711.95.7
Apr30° / 20°8617.212.34.5
May28° / 20°29927.812.63.5
Jun28° / 20°36028.812.83.3
Jul28° / 20°32030.212.83.2
Aug28° / 20°35830.412.53.3
Sep27° / 20°42129.512.13.3
Oct27° / 20°41328.811.73.6
Nov28° / 19°14619.211.35.2
Dec28° / 18°277.411.26.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18218
28416
38515
48614
58713
68713
78812
88812
98911
109010
119010
129010
139010
149010
159010
169010
179010
189010
199010
20919
21919
22919
23919
24919
25919
26919
279010
289010
29919
30919
31919

Chance of precipitation in December

Any precipitation

Masagua gets around 27 mm of rain over 7.4 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 24% and peaks near 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
237
336
435
533
632
731
830
929
1028
1127
1226
1325
1425
1524
1623
1723
1822
1921
2021
2120
2219
2319
2418
2517
2617
2716
2815
2915
3014
3114

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1184051
2184248
3184347
4184546
5184744
6184843
7184941
8185140
9185338
10195337
11195436
121105435
131105534
141115533
152125432
162125630
172135629
182145628
192155627
202165626
212175724
222175823
232185822
243185821
253185920
263195919
273196018
283196117
294206016
304206115
314216114

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 6:17 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)
111.26:175:30
211.26:175:30
311.26:185:30
411.26:185:30
511.26:195:31
611.26:195:31
711.26:205:31
811.26:205:32
911.26:215:32
1011.26:215:32
1111.26:225:33
1211.26:235:33
1311.26:235:33
1411.26:245:34
1511.26:245:34
1611.26:255:35
1711.26:255:35
1811.26:265:35
1911.26:265:36
2011.26:275:36
2111.26:275:37
2211.26:285:37
2311.26:285:38
2411.26:285:38
2511.26:295:39
2611.26:295:39
2711.26:305:40
2811.26:305:40
2911.26:315:41
3011.26:315:41
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 5.29 kWh/m².

For context, solar energy here swings from a low near 4.76 kWh/m² to a high of 6.34 kWh/m² in March across the year — December's 5.29 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in December

Hazard calendar for Masagua

In seasonPeak

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

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

Masagua'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 Masagua?

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

6.8
Sightseeing
2nd-best month of the year
7.8
Beach & pool
3rd-best month of the year

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

What to pack for Masagua in December

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

In December, Masagua sees daytime highs around 28°C and nights near 18°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Masagua 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 37 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 Masagua in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Masagua peaks around April 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 14UV 13Nov 21UV 8
UV index (midday)Level
Jan9Very high
Feb13Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep10Extreme
Oct11Extreme
Nov8Very high
Dec9Very high

Air quality in Masagua 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 Masagua 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 Masagua?

Masagua sits at 14.2°N, 90.8°W, 118 m above sea level, in Guatemala. The nearest listed city is Escuintla, 13 km away.

La GomeraPalínPuerto San JoséAlotenangoYepocapaSanta María de Jesús

Topography around Masagua

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

Within 3 km, the terrain around Masagua has only modest variations in elevation — a maximum elevation change of 75 m around an average of 112 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 950 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,945 m.

The land around Masagua is covered by cropland (35%), trees (33%) and grassland (28%) within 3 km, trees (39%), grassland (31%) and cropland (26%) within 16 km, and trees (46%) and water (23%) within 80 km.

3 km
75 m
16 km
950 m
80 km
3,945 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
December weather nearby: Escuintla 13 km · Santa Lucía Cotzumalguapa 24 km · La Gomera 26 km · Palín 28 km · Puerto San José 31 km · Alotenango 32 km · Yepocapa 35 km · Santa María de Jesús 36 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 Masagua (14.2031°, -90.8481°, elevation 118 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).