Terrazas del Valle weather in December

In December, Terrazas del Valle sees average daytime highs of 18°C and overnight lows near 8°C, with 56 mm of rain across 5.6 wet days and about 9.9 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°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 hours at the start of December to 9 h 54 min by month's end. Set against the rest of the year, December is Terrazas del Valle's 9th-clearest and 1st-windiest month. For the whole year in context, see Terrazas del Valle's year-round climate.

Daytime high
18°
11th warmest
Overnight low
1st coldest
Rainfall
56 mm
5.6 wet days
Daylight
9 h 54 min
6:47 AM – 4:40 PM
Cloud cover
41%
9th clearest
Wind
8 km/h
1st windiest
Solar energy
3.2 kWh/m²
Travel score
6.7
out of 10

Terrazas del Valle is human settlement.

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 18°C through the month.

A typical December day in Terrazas del Valle reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1199
2199
3198
4198
5188
6188
7188
8188
9188
10188
11188
12188
13188
14188
15188
16187
17177
18177
19177
20177
21177
22177
23177
24177
25177
26177
27177
28177
29177
30177
31177

Terrazas del Valle weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 706.110.16.7
Feb18° / 907.210.86.3
Mar19° / 62611.86.8
Apr20° / 10°304.412.87.6
May22° / 13°132.213.68.4
Jun25° / 15°20.514.19.2
Jul28° / 18°30.913.98.5
Aug29° / 19°30.713.27.7
Sep28° / 18°50.912.28.3
Oct25° / 14°182.611.28.7
Nov21° / 10°303.610.37.9
Dec18° / 565.69.96.7

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 12% of December, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36733
46634
56634
66634
76634
86634
96634
106634
116634
126634
136634
146634
156634
166634
176733
186733
196733
206634
216634
226634
236634
246535
256535
266436
276436
286337
296337
306337
316337

Chance of precipitation in December

Any precipitation

Terrazas del Valle gets around 56 mm of rain over 5.6 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 19% and peaks near 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
217
317
418
518
618
718
818
918
1018
1119
1219
1319
1419
1519
1619
1719
1819
1919
2019
2119
2219
2319
2419
2519
2619
2719
2819
2919
3020
3120

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
29991
30991
31991

Wind in December

Winds average 8 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 hours at the start of December to 9 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 6:36 AM to 6:54 AM, and sunset from 4:38 PM to 4:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.06:364:38
210.06:374:38
310.06:384:38
410.06:394:38
510.06:404:38
610.06:404:38
79.96:414:38
89.96:424:38
99.96:434:38
109.96:434:38
119.96:444:38
129.96:454:39
139.96:454:39
149.96:464:39
159.96:474:39
169.96:474:40
179.96:484:40
189.96:484:40
199.96:494:41
209.96:494:41
219.96:504:42
229.96:504:42
239.96:514:43
249.96:514:43
259.96:524:44
269.96:524:44
279.96:524:45
289.96:534:45
299.96:534:46
309.96:534:47
319.96:544:47

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.2 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.2 kWh/m² to a high of 8.18 kWh/m² in June across the year — December's 3.2 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.2Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.2Moderate
243.2Moderate
253.2Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.3Moderate
303.3Moderate
313.3Moderate
Planning a trip in December

Is December a good time to visit Terrazas del Valle?

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

6.7
Sightseeing
10th-best month of the year
2.1
Beach & pool
11th-best month of the year

December is a reasonable time to visit Terrazas del Valle for sightseeing.

What to pack for Terrazas del Valle in December

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

In December, Terrazas del Valle sees daytime highs around 18°C and nights near 8°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Terrazas del Valle in December

The nearest coast averages about 16°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 km away) is warmest in August at about 21°C and coldest in February near 15°C.

It's comfortable for a long swim from Jul 18 to Sep 29 — about 2.4 months when the water holds above 20°C.

14°16°18°20°22°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Cool
Mar16Cool
Apr16Cool
May17Cool
Jun18Cool
Jul20Refreshing
Aug21Refreshing
Sep21Refreshing
Oct19Cool
Nov18Cool
Dec16Cool

UV index in Terrazas del Valle in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Terrazas del Valle peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 22UV 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar6High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Terrazas del Valle 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 Terrazas del Valle is worst in October — around 33 µg/m³ PM2.5 (moderate), about 5.4× the cleanest month (May, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateOct 1631 µg/m³May 176 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr9Good
May6Good
Jun9Good
Jul8Good
Aug9Good
Sep16Moderate
Oct33Moderate
Nov13Moderate
Dec17Moderate
Location & terrain

Where is Terrazas del Valle?

Terrazas del Valle sits at 32.5°N, 116.8°W, 189 m above sea level, in Mexico. The nearest listed city is Las Delicias, 14 km away.

Topography around Terrazas del Valle

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

Within 3 km, the terrain around Terrazas del Valle has significant variations in elevation — a maximum elevation change of 598 m around an average of 246 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,118 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,966 m.

The land around Terrazas del Valle is covered by artificial surfaces (50%) and grassland (33%) within 3 km, grassland (42%), shrubs (23%) and artificial surfaces (22%) within 16 km, and shrubs (33%) and water (28%) within 80 km.

3 km
598 m
16 km
1,118 m
80 km
1,966 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Las Delicias 14 km · Villa del Prado 2da Sección 15 km · Tijuana 17 km · La Joya 17 km · Pórticos de San Antonio 20 km · Tecate 20 km · Rosarito 25 km · Imperial Beach 29 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 Terrazas del Valle (32.4875°, -116.8267°, elevation 189 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).