Oaxaca weather in December

In December, Oaxaca sees average daytime highs of 24°C and overnight lows near 10°C, with 4 mm of rain across 0.8 wet days and about 11 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 63% of the time in December, and the air most often feels dry.

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 Oaxaca's 3rd-clearest and 6th-windiest month. For the whole year in context, see Oaxaca's year-round climate.

Daytime high
24°
10th warmest
Overnight low
10°
2nd coldest
Rainfall
4 mm
0.8 wet days
Daylight
11 hours
6:53 AM – 5:53 PM
Cloud cover
31%
3rd clearest
Wind
6 km/h
6th windiest
Solar energy
5.02 kWh/m²
Travel score
9.1
out of 10

Oaxaca is capital of the Mexican state of Oaxaca.

Density
2,984/km²
people per km²
Founded
1486

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 24°C through the month.

A typical December day in Oaxaca reaches about 24°C in the afternoon and slips back to 10°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12410
22410
32410
42410
52410
62410
72410
82410
92410
102410
112410
122410
132410
142410
152410
162410
172410
182410
192410
202410
212410
222410
232410
242410
252410
262410
272410
282410
292410
30249
31249

Oaxaca weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 30.611.19.0
Feb26° / 10°51.111.48.8
Mar27° / 11°162.911.98.0
Apr28° / 13°29512.46.8
May27° / 14°739.312.86.5
Jun25° / 14°16317135.5
Jul25° / 14°10413.912.96.0
Aug25° / 14°12515.112.65.8
Sep24° / 14°16017.212.15.5
Oct24° / 13°718.711.67.0
Nov24° / 11°10211.28.5
Dec24° / 10°40.8119.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% 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 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18119
28317
38317
48317
58317
68317
78317
88218
98218
108119
118119
128020
137921
147921
157921
167822
177822
187822
197822
207822
217822
227822
237822
247921
257921
267921
278020
288119
298119
308119
318218

Chance of precipitation in December

Any precipitation

Oaxaca gets around 4 mm of rain over 0.8 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 2% and peaks near 4% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
152
162
172
182
192
203
213
223
233
244
254
264
274
284
294
304
313

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5982
6982
7991
8991
9991
10991
11991
12991
13991
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

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 7 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
267calm
277calm
287calm
297calm
307calm
317calm

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 6:45 AM to 7:00 AM, and sunset from 5:48 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:455:48
211.06:465:48
311.06:465:49
411.06:475:49
511.06:475:49
611.06:485:49
711.06:495:50
811.06:495:50
911.06:505:50
1011.06:505:50
1111.06:515:51
1211.06:515:51
1311.06:525:52
1411.06:525:52
1511.06:535:52
1611.06:535:53
1711.06:545:53
1811.06:545:53
1911.06:555:54
2011.06:555:54
2111.06:565:55
2211.06:565:55
2311.06:575:56
2411.06:575:56
2511.06:585:57
2611.06:585:57
2711.06:595:58
2811.06:595:58
2911.06:595:59
3011.07:005:59
3111.07:006:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.02 kWh/m².

For context, solar energy here swings from a low near 4.88 kWh/m² to a high of 7.09 kWh/m² in April across the year — December's 5.02 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
204.9Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Oaxaca

In seasonPeak

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

Oaxaca's rainy season runs June–September, 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 Oaxaca?

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

9.1
Sightseeing
1st-best month of the year
7.6
Beach & pool
4th-best month of the year

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

What to pack for Oaxaca in December

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

In December, Oaxaca sees daytime highs around 24°C and nights near 10°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Oaxaca 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 Oaxaca peaks around April 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 12UV 15Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar14Extreme
Apr15Extreme
May12Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec9Very high

Air quality in Oaxaca 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 Oaxaca is worst in May — around 31 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (January, 8 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1530 µg/m³Jan 118 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar13Moderate
Apr21Moderate
May31Moderate
Jun17Moderate
Jul18Moderate
Aug14Moderate
Sep13Moderate
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Oaxaca?

Oaxaca sits at 17.1°N, 96.7°W, 1,571 m above sea level, in Mexico. The nearest listed city is Santa Cruz Xoxocotlán, 4.0 km away.

Topography around Oaxaca

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

Within 3 km, the terrain around Oaxaca has significant variations in elevation — a maximum elevation change of 282 m around an average of 1,568 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,802 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,193 m.

The land around Oaxaca is covered by artificial surfaces (79%) within 3 km, trees (35%), grassland (21%) and cropland (20%) within 16 km, and trees (66%) within 80 km.

3 km
282 m
16 km
1,802 m
80 km
3,193 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Santa Cruz Xoxocotlán 4.0 km · San Antonio de la Cal 4.0 km · Santa María Atzompa 7.0 km · Ocotlán de Morelos 30 km · Miahuatlán de Porfirio Díaz 82 km · Heroica Ciudad de Tlaxiaco 104 km · Tuxtepec 131 km · Puerto Escondido 138 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 Oaxaca (17.0602°, -96.7254°, elevation 1,571 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).