Ario de Rosales weather in December

In December, Ario de Rosales sees average daytime highs of 24°C and overnight lows near 9°C, with 7 mm of rain across 1.5 wet days and about 10.9 hours of daylight. It is the 11th-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 61% of the time in December, and the air most often feels dry.

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

Daytime high
24°
11th warmest
Overnight low
2nd coldest
Rainfall
7 mm
1.5 wet days
Daylight
10 h 48 min
7:18 AM – 6:08 PM
Cloud cover
36%
5th clearest
Wind
6 km/h
5th windiest
Solar energy
4.83 kWh/m²
Travel score
8.8
out of 10

Ario de Rosales is municipal seat of Ario, State of Michoacán, 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 24°C through the month.

A typical December day in Ario de Rosales reaches about 24°C in the afternoon and slips back to 9°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 26°C. Set against its neighbours, December runs about 1°C cooler than 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
11249
12249
13249
14249
15249
16249
17249
18249
19249
20239
21239
22239
23239
24239
25239
26239
27239
28239
29239
30239
31239

Ario de Rosales 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
Jan24° / 161.9118.7
Feb25° / 10°121.311.38.8
Mar27° / 11°11111.98.5
Apr29° / 13°20.612.47.2
May29° / 15°469.812.95.8
Jun26° / 16°29825.813.14.1
Jul25° / 16°38830.3133.6
Aug25° / 16°43730.212.73.6
Sep25° / 15°41828.912.13.7
Oct25° / 14°18722.811.64.9
Nov25° / 12°407.311.17.7
Dec24° / 71.510.98.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 61% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 24%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18119
28020
38020
48020
57921
67921
77822
87822
97822
107723
117624
127624
137525
147525
157525
167426
177426
187426
197327
207327
217426
227426
237426
247327
257327
267327
277327
287327
297327
307327
317327

Chance of precipitation in December

Any precipitation

Ario de Rosales gets around 7 mm of rain over 1.5 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 5% and peaks near 9% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
19
28
37
47
56
66
76
86
96
106
115
125
135
145
155
165
175
185
195
205
214
224
234
244
254
264
274
284
294
304
314

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
178202
280191
381181
482171
582171
683161
784151
885141
987130
1088120
1189110
1289110
1390100
149190
159190
169280
179280
189370
199370
209460
219460
229550
239550
249550
259640
269640
279640
289730
299730
309730
319820

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 10 h 54 min at the start of December to 10 h 54 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 7:09 AM to 7:24 AM, and sunset from 6:04 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:096:04
210.97:096:04
310.97:106:05
410.97:116:05
510.97:116:05
610.97:126:05
710.97:126:06
810.97:136:06
910.97:146:06
1010.97:146:06
1110.97:156:07
1210.97:156:07
1310.97:166:07
1410.97:166:08
1510.97:176:08
1610.87:186:08
1710.87:186:09
1810.87:196:09
1910.87:196:10
2010.87:206:10
2110.87:206:11
2210.87:216:11
2310.87:216:12
2410.87:216:12
2510.87:226:13
2610.87:226:13
2710.87:236:14
2810.87:236:14
2910.97:246:15
3010.97:246:15
3110.97:246:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.83 kWh/m².

For context, solar energy here swings from a low near 4.48 kWh/m² to a high of 7.44 kWh/m² in April across the year — December's 4.83 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Ario de Rosales

In seasonPeak

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

Ario de Rosales's monsoon runs June–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 Ario de Rosales?

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

8.8
Sightseeing
1st-best month of the year
7.2
Beach & pool
5th-best month of the year

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

What to pack for Ario de Rosales in December

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

In December, Ario de Rosales sees daytime highs around 24°C and nights near 9°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Ario de Rosales 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 Ario de Rosales peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 11UV 13Dec 15UV 7
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Ario de Rosales 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 Ario de Rosales is worst in May — around 32 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (February, 13 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1031 µg/m³Feb 1613 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb13Moderate
Mar15Moderate
Apr31Moderate
May32Moderate
Jun17Moderate
Jul16Moderate
Aug15Moderate
Sep16Moderate
Oct15Moderate
Nov15Moderate
Dec18Moderate
Location & terrain

Where is Ario de Rosales?

Ario de Rosales sits at 19.2°N, 101.7°W, 1,868 m above sea level, in Mexico. The nearest listed city is Tacámbaro de Codallos, 27 km away.

Topography around Ario de Rosales

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

Within 3 km, the terrain around Ario de Rosales has significant variations in elevation — a maximum elevation change of 524 m around an average of 1,900 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,054 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,662 m.

The land around Ario de Rosales is covered by trees (67%) and grassland (21%) within 3 km, trees (75%) within 16 km, and trees (57%) and shrubs (20%) within 80 km.

3 km
524 m
16 km
2,054 m
80 km
3,662 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Tacámbaro de Codallos 27 km · Pátzcuaro 35 km · Uruapan 43 km · Nueva Italia de Ruiz 45 km · Paracho de Verduzco 60 km · Zacapu 68 km · Apatzingán 69 km · Morelia 78 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 Ario de Rosales (19.2083°, -101.709°, elevation 1,868 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).