Miahuatlán de Porfirio Díaz weather in December

In December, Miahuatlán de Porfirio Díaz sees average daytime highs of 22°C and overnight lows near 10°C, with 11 mm of rain across 2.2 wet days and about 11 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 65% 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 Miahuatlán de Porfirio Díaz's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Miahuatlán de Porfirio Díaz's year-round climate.

Daytime high
22°
11th warmest
Overnight low
10°
2nd coldest
Rainfall
11 mm
2.2 wet days
Daylight
11 hours
6:52 AM – 5:54 PM
Cloud cover
33%
3rd clearest
Wind
6 km/h
2nd windiest
Solar energy
5.21 kWh/m²
Travel score
8.4
out of 10

Miahuatlán de Porfirio Díaz is municipal seat of Miahuatlán, 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 22°C through the month.

A typical December day in Miahuatlán de Porfirio Díaz reaches about 22°C in the afternoon and slips back to 10°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12311
22311
32311
42310
52310
62310
72310
82310
92310
102310
112310
122310
132210
142210
152210
162210
172210
182210
192210
202210
212210
222210
232210
242210
252210
262210
272210
282210
292210
302210
312210

Miahuatlán de Porfirio Díaz weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 10°102.611.18.4
Feb24° / 10°123.211.58.6
Mar25° / 12°427.211.97.8
Apr25° / 13°10812.812.46.5
May25° / 14°31221.312.85.2
Jun23° / 14°62825.7134.1
Jul23° / 14°53923.712.94.5
Aug23° / 14°56225.412.54.2
Sep23° / 14°6112612.14.0
Oct23° / 13°25316.511.65.6
Nov23° / 11°435.611.27.7
Dec22° / 10°112.2118.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% 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 18%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18218
28218
38416
48416
58515
68515
78515
88515
98515
108416
118416
128317
138218
148218
158119
168020
178020
188020
198020
208020
217921
227921
237921
247921
257921
267921
277921
288119
298119
308119
318119

Chance of precipitation in December

Any precipitation

Miahuatlán de Porfirio Díaz gets around 11 mm of rain over 2.2 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 7% and peaks near 11% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
111
210
39
49
58
67
76
86
96
105
115
125
135
146
156
166
176
187
197
207
218
228
238
248
259
269
279
289
299
309
319

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1937
2937
3946
4946
5955
6955
7955
8964
9964
10973
11973
12973
13973
14973
15973
16973
17973
18973
19973
20973
21973
22973
23982
24982
25982
26982
27982
28982
29991
30991
31991

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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
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 6:43 AM to 6:58 AM, and sunset from 5:49 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:435:49
211.16:445:49
311.16:445:49
411.16:455:50
511.16:465:50
611.16:465:50
711.16:475:50
811.16:475:51
911.16:485:51
1011.16:485:51
1111.06:495:52
1211.06:495:52
1311.06:505:52
1411.06:515:53
1511.06:515:53
1611.06:525:54
1711.06:525:54
1811.06:535:54
1911.06:535:55
2011.06:545:55
2111.06:545:56
2211.06:555:56
2311.06:555:57
2411.06:555:57
2511.06:565:58
2611.06:565:58
2711.06:575:59
2811.06:575:59
2911.06:586:00
3011.06:586:00
3111.06:586:01

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.21 kWh/m².

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 7.13 kWh/m² in April across the year — December's 5.21 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.3Bright
Planning a trip in December

Hazard calendar for Miahuatlán de Porfirio Díaz

In seasonPeak

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

Miahuatlán de Porfirio Díaz's monsoon runs May–September, 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 Miahuatlán de Porfirio Díaz?

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

8.4
Sightseeing
2nd-best month of the year
6.1
Beach & pool
4th-best month of the year

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

What to pack for Miahuatlán de Porfirio Díaz in December

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

In December, Miahuatlán de Porfirio Díaz sees daytime highs around 22°C and nights near 10°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Miahuatlán de Porfirio Díaz 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 Miahuatlán de Porfirio Díaz peaks around April 13 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 13UV 15Dec 15UV 9
UV index (midday)Level
Jan10Extreme
Feb13Extreme
Mar14Extreme
Apr15Extreme
May13Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Miahuatlán de Porfirio Díaz 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 Miahuatlán de Porfirio Díaz is worst in May — around 27 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (January, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1626 µg/m³Jan 137 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr19Moderate
May27Moderate
Jun17Moderate
Jul20Moderate
Aug16Moderate
Sep15Moderate
Oct12Good
Nov9Good
Dec8Good
Location & terrain

Where is Miahuatlán de Porfirio Díaz?

Miahuatlán de Porfirio Díaz sits at 16.3°N, 96.6°W, 1,552 m above sea level, in Mexico. The nearest listed city is Ocotlán de Morelos, 52 km away.

Topography around Miahuatlán de Porfirio Díaz

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Miahuatlán de Porfirio Díaz.

Within 3 km, the terrain around Miahuatlán de Porfirio Díaz has only modest variations in elevation — a maximum elevation change of 163 m around an average of 1,578 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,441 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,707 m.

The land around Miahuatlán de Porfirio Díaz is covered by grassland (33%), cropland (28%) and artificial surfaces (22%) within 3 km, trees (33%), grassland (29%) and shrubs (27%) within 16 km, and trees (62%) within 80 km.

3 km
163 m
16 km
1,441 m
80 km
3,707 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ocotlán de Morelos 52 km · Puerto Escondido 72 km · San Antonio de la Cal 79 km · Santa Cruz Xoxocotlán 79 km · Crucecita 79 km · Oaxaca 82 km · Santa María Atzompa 88 km · Santo Domingo Tehuantepec 145 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 Miahuatlán de Porfirio Díaz (16.329°, -96.5961°, elevation 1,552 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).