Ameca weather in December

In December, Ameca sees average daytime highs of 25°C and overnight lows near 9°C, with 8 mm of rain across 1.4 wet days and about 10.8 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 53% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of December to 10 h 48 min by month's end. Set against the rest of the year, December is Ameca's 7th-clearest and 6th-windiest month. For the whole year in context, see Ameca's year-round climate.

Daytime high
25°
11th warmest
Overnight low
2nd coldest
Rainfall
8 mm
1.4 wet days
Daylight
10 h 48 min
7:30 AM – 6:15 PM
Cloud cover
42%
7th clearest
Wind
5 km/h
6th windiest
Solar energy
4.7 kWh/m²
Travel score
8.6
out of 10

Ameca is municipal seat of Ameca, State of Jalisco, Mexico.

Density
2,410/km²
people per km²
Founded
1325

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 25°C through the month.

A typical December day in Ameca reaches about 25°C in the afternoon and slips back to 9°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 27°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)
12510
22510
32510
42510
52510
6259
7259
8259
9259
10259
11259
12259
13259
14259
15259
16259
17249
18249
19249
20249
21249
22249
23249
24248
25248
26248
27248
28248
29248
30248
31248

How December really feels in Ameca

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.

Ameca weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 20210.98.6
Feb26° / 141.611.38.4
Mar29° / 10°61.111.97.4
Apr31° / 12°4112.55.8
May32° / 15°164.1134.7
Jun30° / 17°15318.213.24.0
Jul27° / 17°21525.313.14.1
Aug27° / 17°19724.612.74.2
Sep27° / 17°17620.512.14.8
Oct27° / 15°639.111.56.7
Nov26° / 11°162.7118.3
Dec25° / 81.410.88.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37327
47228
57228
67129
77129
86931
96931
106832
116832
126832
136832
146832
156832
166733
176733
186733
196733
206634
216634
226436
236436
246337
256337
266238
276238
286337
296238
306337
316337

Chance of precipitation in December

Any precipitation

Ameca gets around 8 mm of rain over 1.4 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 4% and peaks near 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
54
64
74
84
94
104
114
124
134
144
154
164
174
184
194
204
214
225
235
245
255
265
275
285
295
305
315

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1955
2955
3955
4955
5964
6964
7964
8964
9964
10973
11973
12973
13973
14982
15982
16982
17982
18982
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 48 min at the start of December to 10 h 48 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 7:21 AM to 7:36 AM, and sunset from 6:11 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:216:11
210.87:216:11
310.87:226:12
410.87:236:12
510.87:236:12
610.87:246:12
710.87:246:12
810.87:256:13
910.87:266:13
1010.87:266:13
1110.87:276:13
1210.87:276:14
1310.87:286:14
1410.87:286:14
1510.87:296:15
1610.87:306:15
1710.87:306:16
1810.87:316:16
1910.87:316:16
2010.87:326:17
2110.87:326:17
2210.87:336:18
2310.87:336:18
2410.87:336:19
2510.87:346:19
2610.87:346:20
2710.87:356:20
2810.87:356:21
2910.87:366:21
3010.87:366:22
3110.87:366:22

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.7 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.7 kWh/m² to a high of 7.52 kWh/m² in April across the year — December's 4.7 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in December

Hazard calendar for Ameca

In seasonPeak

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

Ameca'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 Ameca?

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

8.6
Sightseeing
1st-best month of the year
7.6
Beach & pool
6th-best month of the year

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

What to pack for Ameca in December

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

In December, Ameca sees daytime highs around 25°C and nights near 9°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Ameca 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 Ameca peaks around April 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highApr 23UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Ameca 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 Ameca is worst in May — around 41 µg/m³ PM2.5 (poor), about 4.7× the cleanest month (January, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodMay 1638 µg/m³Jan 229 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar11Good
Apr20Moderate
May41Poor
Jun18Moderate
Jul11Good
Aug11Good
Sep11Good
Oct10Good
Nov9Good
Dec10Good
Location & terrain

Where is Ameca?

Ameca sits at 20.5°N, 104.0°W, 1,244 m above sea level, in Mexico. The nearest listed city is Ahualulco de Mercado, 19 km away.

Topography around Ameca

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

Within 3 km, the terrain around Ameca has only modest variations in elevation — a maximum elevation change of 70 m around an average of 1,245 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,432 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,570 m.

The land around Ameca is covered by cropland (54%) and artificial surfaces (23%) within 3 km, trees (36%) and cropland (32%) within 16 km, and trees (51%) within 80 km.

3 km
70 m
16 km
1,432 m
80 km
2,570 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ahualulco de Mercado 19 km · Cocula 31 km · Tala 38 km · Magdalena 41 km · Tequila 43 km · El Salto 53 km · San Agustín 60 km · Zacoalco de Torres 61 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 Ameca (20.5478°, -104.0461°, elevation 1,244 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).