Tres Valles weather in December

In December, Tres Valles sees average daytime highs of 27°C and overnight lows near 20°C, with 45 mm of rain across 7.6 wet days and about 10.9 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 36% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 hours at the start of December to 10 h 54 min by month's end. Set against the rest of the year, December is Tres Valles's 5th-clearest and 7th-windiest month. For the whole year in context, see Tres Valles's year-round climate.

Daytime high
27°
11th warmest
Overnight low
20°
2nd coldest
Rainfall
45 mm
7.6 wet days
Daylight
10 h 54 min
6:53 AM – 5:48 PM
Cloud cover
54%
5th clearest
Wind
4 km/h
7th windiest
Solar energy
3.47 kWh/m²
Travel score
6.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical December day in Tres Valles reaches about 27°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62820
72720
82720
92720
102720
112720
122720
132720
142720
152720
162720
172720
182720
192720
202720
212720
222720
232720
242720
252719
262719
272719
282719
292719
302719
312719

How December really feels in Tres Valles

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.

Tres Valles weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°407.2117.1
Feb28° / 20°305.411.46.5
Mar31° / 22°28511.95.1
Apr34° / 24°43612.43.4
May35° / 26°11112.912.82.6
Jun33° / 25°34724.213.12.2
Jul33° / 25°36325.9132.4
Aug33° / 25°37527.112.62.3
Sep32° / 24°41426.612.12.4
Oct31° / 23°24818.811.63.7
Nov29° / 21°10411.911.15.5
Dec27° / 20°457.610.96.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35941
45941
55941
66040
75941
85941
95941
105941
115842
125842
135743
145644
155545
165545
175446
185446
195347
205248
215248
225149
235149
245050
254951
265050
275050
285050
295050
305050
315050

Chance of precipitation in December

Any precipitation

Tres Valles gets around 45 mm of rain over 7.6 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 25% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
329
428
528
627
727
826
926
1025
1124
1224
1323
1423
1523
1622
1722
1822
1922
2023
2123
2223
2323
2424
2524
2624
2724
2824
2924
3023
3123

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 67% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1161745301
2161845291
3161845291
4161845291
5161945281
6161945281
7161945280
8261945280
9272044270
10272044270
11272044270
12282043260
13282143260
14282143250
15382242250
16382242240
17382342230
18382442230
19382542220
20382542210
21382643200
22382644190
23382645180
24382645170
25382746160
26382746160
27382746150
28382746150
29382846140
30392846140
31392846140

Wind in December

Winds average 4 km/h in December.

Across December, daily wind ranges from about 4 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
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
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 11 hours at the start of December to 10 h 54 min 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 5:44 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:455:44
211.06:455:44
311.06:465:44
411.06:475:44
511.06:475:45
611.06:485:45
710.96:485:45
810.96:495:45
910.96:495:46
1010.96:505:46
1110.96:515:46
1210.96:515:47
1310.96:525:47
1410.96:525:47
1510.96:535:48
1610.96:535:48
1710.96:545:48
1810.96:545:49
1910.96:555:49
2010.96:555:50
2110.96:565:50
2210.96:565:51
2310.96:575:51
2410.96:575:52
2510.96:585:52
2610.96:585:53
2710.96:595:53
2810.96:595:54
2910.96:595:54
3010.97:005:55
3110.97:005:55

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.47 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.47 kWh/m² to a high of 6.25 kWh/m² in May across the year — December's 3.47 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in December

Hazard calendar for Tres Valles

In seasonPeak

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

Tres Valles's monsoon runs June–October, 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 Tres Valles?

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

6.9
Sightseeing
2nd-best month of the year
7.0
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Tres Valles for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tres Valles in December

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

In December, Tres Valles sees daytime highs around 27°C and nights near 20°C. Pack light clothes. About 8 days see rain.

light clothes

UV index in Tres Valles 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 Tres Valles peaks around August 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 highExtremeVery highAug 16UV 12Dec 17UV 7
UV index (midday)Level
Jan7Very high
Feb10Extreme
Mar10Extreme
Apr12Extreme
May8Very high
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Tres Valles 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 Tres Valles is worst in May — around 49 µg/m³ PM2.5 (poor), about 3.7× the cleanest month (January, 13 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 1647 µg/m³Jan 1513 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar20Moderate
Apr31Moderate
May49Poor
Jun28Moderate
Jul31Moderate
Aug24Moderate
Sep21Moderate
Oct15Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is Tres Valles?

Tres Valles sits at 18.2°N, 96.1°W, 56 m above sea level, in Mexico. The nearest listed city is Tuxtepec, 17 km away.

Topography around Tres Valles

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

Within 3 km, the terrain around Tres Valles has only modest variations in elevation — a maximum elevation change of 43 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 71 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,020 m.

The land around Tres Valles is covered by trees (44%) and grassland (25%) within 3 km, cropland (49%), grassland (24%) and trees (23%) within 16 km, and trees (46%) and grassland (29%) within 80 km.

3 km
43 m
16 km
71 m
80 km
3,020 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
December weather nearby: Tuxtepec 17 km · Loma Bonita 31 km · Tierra Blanca 33 km · Cosamaloapan 38 km · La Isla 40 km · Carlos A. Carrillo 43 km · Tlacotalpan 65 km · Isla 68 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 Tres Valles (18.2391°, -96.1357°, elevation 56 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).