Sayaxché weather in December

In December, Sayaxché sees average daytime highs of 28°C and overnight lows near 19°C, with 60 mm of rain across 12.5 wet days and about 11 hours of daylight. It is the 11th-warmest and 8th-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 26% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 06 min at the start of December to 11 hours by month's end. Set against the rest of the year, December is Sayaxché's 5th-clearest and 7th-windiest month. For the whole year in context, see Sayaxché's year-round climate.

Daytime high
28°
11th warmest
Overnight low
19°
2nd coldest
Rainfall
60 mm
12.5 wet days
Daylight
11 hours
6:26 AM – 5:28 PM
Cloud cover
56%
5th clearest
Wind
6 km/h
7th windiest
Solar energy
3.59 kWh/m²
Travel score
6.1
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 Sayaxché reaches about 28°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 31°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62820
72820
82820
92820
102820
112820
122820
132820
142819
152819
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

How December really feels in Sayaxché

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.

Sayaxché weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°5210.511.16.4
Feb30° / 20°257.111.45.6
Mar33° / 21°366.911.94.1
Apr36° / 23°526.712.42.5
May35° / 24°15115.612.82.0
Jun33° / 24°29025.9132.2
Jul32° / 23°20825.312.92.6
Aug32° / 23°26026.812.62.4
Sep32° / 23°30228.212.12.3
Oct30° / 22°23623.311.63.3
Nov28° / 21°1051611.25.0
Dec28° / 19°6012.5116.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 29% of December, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25347
35446
45446
55545
65545
75545
85545
95545
105644
115644
125644
135743
145743
155644
165644
175644
185644
195644
205644
215644
225545
235545
245545
255446
265545
275446
285446
295446
305347
315347

Chance of precipitation in December

Any precipitation

Sayaxché gets around 60 mm of rain over 12.5 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 41% and peaks near 45% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
444
544
643
743
843
942
1042
1142
1242
1342
1442
1541
1641
1741
1840
1940
2040
2139
2239
2339
2439
2538
2638
2738
2838
2938
3038
3138

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12932561
21932571
32932561
42932561
52933551
62933551
721033541
821034522
931034512
1031035502
1131035502
1231036492
1331036482
1431137472
1541137472
1641138462
1741138452
1841239442
1941240432
2041240421
2141241421
2241241411
2341242411
2441242411
2541242401
2641243401
2741343401
2841343391
2941344391
3041344381
3141344371

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 06 min at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:18 AM to 6:33 AM, and sunset from 5:23 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:185:23
211.16:195:23
311.16:195:23
411.16:205:24
511.16:205:24
611.16:215:24
711.16:215:24
811.06:225:25
911.06:225:25
1011.06:235:25
1111.06:245:26
1211.06:245:26
1311.06:255:26
1411.06:255:27
1511.06:265:27
1611.06:265:28
1711.06:275:28
1811.06:275:28
1911.06:285:29
2011.06:285:29
2111.06:295:30
2211.06:295:30
2311.06:305:31
2411.06:305:31
2511.06:315:32
2611.06:315:32
2711.06:325:33
2811.06:325:33
2911.06:325:34
3011.06:335:34
3111.06:335:35

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.59 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.59 kWh/m² to a high of 6.22 kWh/m² in April across the year — December's 3.59 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
313.6Moderate
Planning a trip in December

Hazard calendar for Sayaxché

In seasonPeak

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

Sayaxché's rainy season runs May–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Sayaxché?

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

6.1
Sightseeing
2nd-best month of the year
6.3
Beach & pool
4th-best month of the year

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

What to pack for Sayaxché in December

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

In December, Sayaxché sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: rain gear. About 13 days see rain.

light clothesrain gear

UV index in Sayaxché in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sayaxché peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highExtremeExtremeVery highApr 10UV 13Dec 16UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May10Very high
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Sayaxché 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 Sayaxché is worst in April — around 43 µg/m³ PM2.5 (poor), about 6.4× the cleanest month (December, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodApr 2042 µg/m³Dec 197 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar16Moderate
Apr43Poor
May36Poor
Jun25Moderate
Jul25Moderate
Aug18Moderate
Sep15Moderate
Oct11Good
Nov8Good
Dec7Good
Location & terrain

Where is Sayaxché?

Sayaxché sits at 16.5°N, 90.2°W, 0 m above sea level, in Guatemala. The nearest listed city is San Benito, 52 km away.

San BenitoFloresChisecPoptúnSan Pedro CarcháCobánMelchor de MencosSan Cristóbal Verapaz

Topography around Sayaxché

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

Within 3 km, the terrain around Sayaxché has only modest variations in elevation — a maximum elevation change of 65 m around an average of 124 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 139 m; within 80 km, large variations in elevation — a maximum elevation change of 783 m.

The land around Sayaxché is covered by grassland (49%) and trees (42%) within 3 km, grassland (57%) and trees (41%) within 16 km, and grassland (54%) and trees (43%) within 80 km.

3 km
65 m
16 km
139 m
80 km
783 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: San Benito 52 km · Flores 54 km · Chisec 80 km · Poptún 85 km · San Pedro Carchá 117 km · Cobán 119 km · Melchor de Mencos 126 km · San Cristóbal Verapaz 132 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 Sayaxché (16.5245°, -90.188°, elevation 0 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).