Loma Bonita weather in December

In December, Loma Bonita sees average daytime highs of 27°C and overnight lows near 19°C, with 54 mm of rain across 8.8 wet days and about 10.9 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 36% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 hours at the start of December to 10 h 54 min by month's end. Set against the rest of the year, December is Loma Bonita's 5th-clearest and 6th-windiest month. For the whole year in context, see Loma Bonita's year-round climate.

Daytime high
27°
11th warmest
Overnight low
19°
2nd coldest
Rainfall
54 mm
8.8 wet days
Daylight
10 h 54 min
6:52 AM – 5:47 PM
Cloud cover
54%
5th clearest
Wind
6 km/h
6th windiest
Solar energy
3.44 kWh/m²
Travel score
6.9
out of 10

Loma Bonita is municipal seat of Loma Bonita, State of Oaxaca, Mexico.

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 27°C through the month.

A typical December day in Loma Bonita reaches about 27°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 22°C and 30°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12720
22720
32719
42719
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152719
162719
172619
182619
192619
202619
212619
222619
232619
242619
252619
262619
272619
282619
292619
302619
312618

How December really feels in Loma Bonita

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.

Loma Bonita 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
Jan26° / 18°507.9117.1
Feb28° / 19°356.311.46.7
Mar31° / 21°325.711.95.2
Apr34° / 23°426.312.43.5
May34° / 25°11013.212.82.7
Jun33° / 25°32124.113.12.3
Jul32° / 24°34126.6132.5
Aug32° / 24°36027.112.62.4
Sep31° / 24°40326.512.12.6
Oct30° / 23°24819.111.63.8
Nov28° / 21°11312.311.15.7
Dec27° / 19°548.810.96.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25842
35842
45842
55842
65842
75842
85743
95743
105743
115644
125644
135545
145446
155446
165347
175248
185248
195149
204951
215050
224951
234951
244951
254951
264951
274951
285050
294951
305050
315050

Chance of precipitation in December

Any precipitation

Loma Bonita gets around 54 mm of rain over 8.8 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 28% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
330
430
529
629
728
828
928
1027
1127
1227
1326
1426
1526
1626
1727
1827
1927
2028
2128
2228
2329
2429
2529
2629
2728
2828
2928
3027
3127

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 44% of days. Sticky, muggy-or-worse air turns up on roughly 62% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1172245251
2262245241
3262245240
4262346230
5262346230
6262346220
7272346220
8272346210
9272346210
10382346200
11382445200
12382445200
13392445190
14392544190
15492544180
16492643180
174102743170
184102742170
194102842160
204102942160
214102942150
224103042140
233103043140
243103143130
253103144120
263103144110
273103144110
283113145100
293113145100
303123144100
31312314490

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 hours at the start of December to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:44 AM to 6:59 AM, and sunset from 5:43 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:445:43
211.06:445:43
311.06:455:43
411.06:455:44
511.06:465:44
611.06:465:44
711.06:475:44
810.96:485:45
910.96:485:45
1010.96:495:45
1110.96:495:45
1210.96:505:46
1310.96:505:46
1410.96:515:47
1510.96:525:47
1610.96:525:47
1710.96:535:48
1810.96:535:48
1910.96:545:49
2010.96:545:49
2110.96:555:49
2210.96:555:50
2310.96:565:50
2410.96:565:51
2510.96:565:51
2610.96:575:52
2710.96:575:52
2810.96:585:53
2910.96:585:53
3010.96:585:54
3110.96:595:55

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.44 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.44 kWh/m² to a high of 6.31 kWh/m² in May across the year — December's 3.44 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.3Moderate
303.4Moderate
313.4Moderate
Planning a trip in December

Hazard calendar for Loma Bonita

In seasonPeak

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

Loma Bonita's monsoon runs June–October, when most of the year's rain falls.

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

Is December a good time to visit Loma Bonita?

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

6.9
Sightseeing
2nd-best month of the year
6.8
Beach & pool
3rd-best month of the year

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

What to pack for Loma Bonita in December

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

In December, Loma Bonita sees daytime highs around 27°C and nights near 19°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Loma Bonita in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Loma Bonita peaks around August 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highAug 17UV 12Dec 18UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar10Extreme
Apr12Extreme
May8Very high
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Loma Bonita 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 Loma Bonita is worst in May — around 49 µg/m³ PM2.5 (poor), about 3.7× the cleanest month (January, 13 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 1647 µg/m³Jan 1513 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar20Moderate
Apr31Moderate
May49Poor
Jun28Moderate
Jul31Moderate
Aug24Moderate
Sep21Moderate
Oct15Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is Loma Bonita?

Loma Bonita sits at 18.1°N, 95.9°W, 25 m above sea level, in Mexico. The nearest listed city is Tuxtepec, 26 km away.

Topography around Loma Bonita

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

Within 3 km, the terrain around Loma Bonita has only modest variations in elevation — a maximum elevation change of 41 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 119 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,715 m.

The land around Loma Bonita is covered by grassland (52%) and trees (27%) within 3 km, grassland (44%) and trees (34%) within 16 km, and trees (40%) and grassland (36%) within 80 km.

3 km
41 m
16 km
119 m
80 km
2,715 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
December weather nearby: Tuxtepec 26 km · Cosamaloapan 30 km · Tres Valles 31 km · Carlos A. Carrillo 33 km · Isla 38 km · Tlacotalpan 61 km · La Isla 62 km · Tierra Blanca 63 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 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 Loma Bonita (18.1077°, -95.8805°, elevation 25 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).