San José del Valle weather in December

In December, San José del Valle sees average daytime highs of 26°C and overnight lows near 19°C, with 22 mm of rain across 2.5 wet days and about 10.8 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 49% of the time in December, and the air most often feels muggy.

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 San José del Valle's 7th-clearest and 7th-windiest month. For the whole year in context, see San José del Valle's year-round climate.

Daytime high
26°
10th warmest
Overnight low
19°
4th coldest
Rainfall
22 mm
2.5 wet days
Daylight
10 h 42 min
6:35 AM – 5:19 PM
Cloud cover
46%
7th clearest
Wind
6 km/h
7th windiest
Solar energy
4.43 kWh/m²
Travel score
8.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical December day in San José del Valle reaches about 26°C in the afternoon and slips back to 19°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12720
22720
32619
42619
52619
62619
72619
82619
92619
102619
112619
122619
132619
142619
152619
162619
172619
182518
192518
202518
212518
222518
232518
242518
252518
262518
272518
282518
292518
302518
312518

How December really feels in San José del Valle

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.

San José del Valle weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 18°272.710.98.3
Feb25° / 18°20211.38.5
Mar26° / 18°9111.98.6
Apr27° / 19°20.412.58.4
May28° / 22°71.4137.4
Jun29° / 24°17015.513.24.8
Jul29° / 24°25125.613.13.3
Aug29° / 24°33828.212.73.1
Sep29° / 24°33627.712.13.1
Oct29° / 23°14416.911.54.8
Nov28° / 21°304.7117.4
Dec26° / 19°222.510.88.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27228
37129
47030
56931
66931
76733
86634
96634
106535
116535
126535
136535
146535
156535
166436
176436
186436
196535
206535
216535
226535
236436
246436
256337
266337
276436
286337
296337
306337
316337

Chance of precipitation in December

Any precipitation

San José del Valle gets around 22 mm of rain over 2.5 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 8% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
17
27
37
47
57
67
77
87
97
107
117
127
137
147
157
168
178
188
198
208
219
229
239
249
2510
2610
2710
2810
299
309
319

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 64% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
101146916
201147114
301157212
401157311
502157310
60216739
70217738
81217737
91218736
101219735
111221724
121222714
131224703
141225702
151227682
161229671
171231651
181233631
191235611
200236611
210238591
220239581
230241561
240241561
250242551
260243541
270243541
280244531
290344521
300345511
310345511

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 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 6:26 AM to 6:41 AM, and sunset from 5:16 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:265:16
210.86:265:16
310.86:275:16
410.86:285:16
510.86:285:16
610.86:295:16
710.86:305:17
810.86:305:17
910.86:315:17
1010.86:315:17
1110.86:325:18
1210.86:325:18
1310.86:335:18
1410.86:345:19
1510.76:345:19
1610.76:355:19
1710.76:355:20
1810.76:365:20
1910.76:365:21
2010.76:375:21
2110.76:375:22
2210.76:385:22
2310.76:385:23
2410.76:395:23
2510.76:395:24
2610.76:405:24
2710.76:405:25
2810.76:405:25
2910.76:415:26
3010.86:415:26
3110.86:415:27

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.43 kWh/m².

For context, solar energy here swings from a low near 4.4 kWh/m² to a high of 7.33 kWh/m² in May across the year — December's 4.43 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in December

Hazard calendar for San José del Valle

In seasonPeak

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

San José del Valle sits in the eastern Pacific hurricane zone; the season peaks August–September.

San José del Valle's monsoon runs June–September, when most of the year's rain falls.

Pacific hurricane
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit San José del Valle?

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

8.1
Sightseeing
5th-best month of the year
7.6
Beach & pool
6th-best month of the year

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

What to pack for San José del Valle in December

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

In December, San José del Valle sees daytime highs around 26°C and nights near 19°C. Worth packing: light clothes.

light clothes

Sea temperature near San José del Valle in December

The nearest coast averages about 26°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 20 km away) is warmest in August at about 30°C and coldest in March near 24°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar24Warm
Apr25Warm
May27Warm
Jun28Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov28Tropical
Dec26Warm

UV index in San José del Valle in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San José del Valle peaks around May 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighMay 11UV 13Dec 16UV 6
UV index (midday)Level
Jan7High
Feb10Very high
Mar11Extreme
Apr12Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep12Extreme
Oct10Very high
Nov7High
Dec6High

Air quality in San José 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 San José del Valle is worst in May — around 24 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (February, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1823 µg/m³Feb 158 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr11Good
May24Moderate
Jun15Moderate
Jul10Good
Aug10Good
Sep9Good
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is San José del Valle?

San José del Valle sits at 20.8°N, 105.2°W, 24 m above sea level, in Mexico. The nearest listed city is Ixtapa, 6.0 km away.

Topography around San José del Valle

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

Within 3 km, the terrain around San José del Valle has only modest variations in elevation — a maximum elevation change of 55 m around an average of 22 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,205 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,708 m.

The land around San José del Valle is covered by cropland (53%) and trees (20%) within 3 km, trees (55%) within 16 km, and trees (58%) and water (31%) within 80 km.

3 km
55 m
16 km
1,205 m
80 km
2,708 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ixtapa 6.0 km · Mezcales 7.0 km · Bucerías 11 km · Puerto Vallarta 16 km · Sayulita 25 km · Compostela 63 km · Xalisco 83 km · El Salto 90 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 San José del Valle (20.7638°, -105.2281°, elevation 24 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).