San Juan del Río weather in January

In January, San Juan del Río sees average daytime highs of 22°C and overnight lows near 7°C, with 13 mm of rain across 2.7 wet days and about 10.9 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 53% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of January to 11 h 06 min by month's end. Set against the rest of the year, January is San Juan del Río's 4th-clearest and 7th-windiest month. For the whole year in context, see San Juan del Río's year-round climate.

Daytime high
22°
12th warmest
Overnight low
1st coldest
Rainfall
13 mm
2.7 wet days
Daylight
10 h 54 min
7:23 AM – 6:16 PM
Cloud cover
42%
4th clearest
Wind
9 km/h
7th windiest
Solar energy
4.9 kWh/m²
Travel score
8.1
out of 10

San Juan del Río is municipal seat of San Juan del Río, State of Querétaro, Mexico.

Density
173/km²
people per km²
Founded
1531

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical January day in San Juan del Río reaches about 22°C in the afternoon and slips back to 7°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, January runs on par with December and about 2°C cooler than February.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1227
2227
3227
4227
5227
6227
7227
8227
9227
10227
11227
12227
13227
14227
15227
16227
17227
18227
19227
20227
21227
22227
23237
24237
25237
26237
27238
28238
29238
30238
31238

San Juan del Río weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 132.710.98.1
Feb25° / 142.511.38.4
Mar27° / 10°13311.97.9
Apr29° / 13°214.512.56.4
May29° / 14°388135.9
Jun27° / 15°9012.413.26.0
Jul26° / 15°9313.713.16.1
Aug26° / 15°8212.112.76.2
Sep25° / 14°9813.312.16.2
Oct24° / 12°43711.57.5
Nov24° / 10°163.1118.4
Dec23° / 51.310.88.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26634
36535
46535
56535
66733
76733
86733
96634
106733
116733
126733
136832
146832
156733
166832
176832
186733
196733
206733
216733
226634
236535
246535
256535
266535
276535
286535
296535
306535
316535

Chance of precipitation in January

Any precipitation

San Juan del Río gets around 13 mm of rain over 2.7 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 9% and peaks near 12% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
77
87
97
107
117
128
138
148
158
169
179
189
199
209
2110
2210
2310
2411
2511
2611
2711
2812
2912
3012
3112

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 48 min at the start of January to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over January. Sunrise moves from 7:20 AM to 7:21 AM, and sunset from 6:07 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:206:07
210.87:206:07
310.87:206:08
410.87:216:08
510.87:216:09
610.87:216:10
710.87:216:10
810.87:226:11
910.87:226:11
1010.87:226:12
1110.87:226:13
1210.97:226:13
1310.97:226:14
1410.97:226:15
1510.97:236:15
1610.97:236:16
1710.97:236:17
1810.97:236:17
1910.97:236:18
2010.97:236:19
2110.97:236:19
2211.07:236:20
2311.07:236:20
2411.07:226:21
2511.07:226:22
2611.07:226:22
2711.07:226:23
2811.07:226:24
2911.07:226:24
3011.17:216:25
3111.17:216:25

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.9 kWh/m².

For context, solar energy here swings from a low near 4.76 kWh/m² to a high of 7.28 kWh/m² in April across the year — January's 4.9 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in January

Hazard calendar for San Juan del Río

In seasonPeak

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

San Juan del Río'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 January a good time to visit San Juan del Río?

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

8.1
Sightseeing
4th-best month of the year
5.9
Beach & pool
10th-best month of the year

January is one of the better times to visit San Juan del Río for general sightseeing.

What to pack for San Juan del Río in January

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

In January, San Juan del Río sees daytime highs around 22°C and nights near 7°C. Worth packing: light clothes, a warm layer and sun protection.

light clothesa warm layersun protection

UV index in San Juan del Río in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Juan del Río peaks around June 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 13UV 14Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun14Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in San Juan del Río in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in San Juan del Río is worst in December — around 46 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (October, 29 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorModeratePoorDec 2146 µg/m³Oct 1129 µg/m³
PM2.5 (µg/m³)Level
Jan44Poor
Feb42Poor
Mar38Poor
Apr35Poor
May35Moderate
Jun30Moderate
Jul40Poor
Aug32Moderate
Sep30Moderate
Oct29Moderate
Nov37Poor
Dec46Poor
Location & terrain

Where is San Juan del Río?

San Juan del Río sits at 20.4°N, 100.0°W, 1,923 m above sea level, in Mexico. The nearest listed city is Tequisquiapan, 18 km away.

Topography around San Juan del Río

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

Within 3 km, the terrain around San Juan del Río has only modest variations in elevation — a maximum elevation change of 226 m around an average of 1,943 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 797 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,942 m.

The land around San Juan del Río is covered by artificial surfaces (54%) within 3 km, shrubs (40%) and cropland (32%) within 16 km, and shrubs (42%) and cropland (23%) within 80 km.

3 km
226 m
16 km
797 m
80 km
2,942 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Tequisquiapan 18 km · Venceremos 46 km · Santiago de Querétaro 46 km · San José de los Olvera 47 km · El Pueblito 49 km · Santa Rosa Jáuregui 61 km · Apaseo el Alto 66 km · Atlacomulco de Fabela 67 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 Juan del Río (20.389°, -99.9964°, elevation 1,923 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).