Lomas del Sur weather in December

In December, Lomas del Sur sees average daytime highs of 25°C and overnight lows near 9°C, with 8 mm of rain across 1.7 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 Lomas del Sur's 7th-clearest and 8th-windiest month. For the whole year in context, see Lomas del Sur's year-round climate.

Daytime high
25°
11th warmest
Overnight low
2nd coldest
Rainfall
8 mm
1.7 wet days
Daylight
10 h 48 min
7:27 AM – 6:13 PM
Cloud cover
42%
7th clearest
Wind
5 km/h
8th windiest
Solar energy
4.74 kWh/m²
Travel score
8.5
out of 10

Lomas del Sur is town in Tlajomulco Municipality, State of Jalisco, 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 25°C through the month.

A typical December day in Lomas del Sur 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 2°C cooler than November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12610
22610
32610
42610
52610
62610
72610
82510
92510
102510
112510
122510
13259
14259
15259
16259
17259
18259
19259
20259
21259
22259
23259
24259
25249
26249
27249
28249
29249
30249
31249

How December really feels in Lomas del Sur

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.

Lomas del Sur 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
Jan25° / 192.210.98.5
Feb27° / 10°14211.38.2
Mar29° / 11°71.211.97.0
Apr31° / 13°51.312.55.5
May32° / 16°164.4134.5
Jun30° / 18°11317.513.24.0
Jul28° / 17°18025.213.14.2
Aug27° / 17°15724.112.74.3
Sep27° / 17°13920.212.14.9
Oct27° / 15°508.311.56.8
Nov26° / 12°152.4118.2
Dec25° / 81.710.88.5

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 (%)
17624
27525
37426
47327
57228
67129
77129
86931
96931
106832
116832
126733
136733
146733
156733
166634
176733
186634
196634
206535
216535
226436
236436
246337
256337
266139
276139
286139
296139
306238
316238

Chance of precipitation in December

Any precipitation

Lomas del Sur gets around 8 mm of rain over 1.7 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 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
54
64
74
84
95
105
115
125
135
145
155
165
175
185
195
205
215
226
236
246
256
266
276
286
296
306
316

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
2964
3964
4964
5964
6973
7973
8973
9973
10973
11982
12982
13982
14982
15982
16982
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
291000
301000
311000

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 6 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
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 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 7:18 AM to 7:34 AM, and sunset from 6:09 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:186:09
210.87:196:09
310.87:196:09
410.87:206:09
510.87:216:09
610.87:216:10
710.87:226:10
810.87:226:10
910.87:236:10
1010.87:246:11
1110.87:246:11
1210.87:256:11
1310.87:256:12
1410.87:266:12
1510.87:266:12
1610.87:276:13
1710.87:276:13
1810.87:286:14
1910.87:286:14
2010.87:296:14
2110.87:296:15
2210.87:306:15
2310.87:306:16
2410.87:316:16
2510.87:316:17
2610.87:326:17
2710.87:326:18
2810.87:336:18
2910.87:336:19
3010.87:336:19
3110.87:346:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.74 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.74 kWh/m² to a high of 7.57 kWh/m² in April across the year — December's 4.74 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
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
304.8Bright
314.8Bright
Planning a trip in December

Hazard calendar for Lomas del Sur

In seasonPeak

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

Lomas del Sur'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 Lomas del Sur?

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

8.5
Sightseeing
1st-best month of the year
7.6
Beach & pool
5th-best month of the year

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

What to pack for Lomas del Sur in December

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

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

light clothessun protection

UV index in Lomas del Sur 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 Lomas del Sur peaks around May 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highMay 10UV 14Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr14Extreme
May14Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Lomas del Sur 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 Lomas del Sur is worst in May — around 44 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (July, 14 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 1342 µg/m³Jul 2114 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb18Moderate
Mar20Moderate
Apr33Moderate
May44Poor
Jun17Moderate
Jul14Moderate
Aug15Moderate
Sep17Moderate
Oct17Moderate
Nov18Moderate
Dec21Moderate
Location & terrain

Where is Lomas del Sur?

Lomas del Sur sits at 20.5°N, 103.4°W, 1,636 m above sea level, in Mexico. The nearest listed city is Tlajomulco de Zúñiga, 4.0 km away.

Topography around Lomas del Sur

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

Within 3 km, the terrain around Lomas del Sur has significant variations in elevation — a maximum elevation change of 543 m around an average of 1,634 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,463 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,409 m.

The land around Lomas del Sur is covered by grassland (26%), artificial surfaces (24%) and cropland (22%) within 3 km, trees (25%), artificial surfaces (25%) and cropland (22%) within 16 km, and trees (36%) and cropland (21%) within 80 km.

3 km
543 m
16 km
1,463 m
80 km
2,409 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Tlajomulco de Zúñiga 4.0 km · San Sebastián el Grande 5.0 km · Hacienda Santa Fe 5.0 km · Santa Anita 7.0 km · San Agustín 8.0 km · Las Pintas de Arriba 13 km · Las Pintitas 14 km · San José del Quince 15 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 Lomas del Sur (20.4925°, -103.4175°, elevation 1,636 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).