Cortazar weather in January

In January, Cortazar sees average daytime highs of 24°C and overnight lows near 8°C, with 11 mm of rain across 2.1 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 24°C through the month. The sky is clear or mostly clear about 55% 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 Cortazar's 5th-clearest and 7th-windiest month. For the whole year in context, see Cortazar's year-round climate.

Daytime high
24°
12th warmest
Overnight low
1st coldest
Rainfall
11 mm
2.1 wet days
Daylight
10 h 54 min
7:27 AM – 6:20 PM
Cloud cover
40%
5th clearest
Wind
8 km/h
7th windiest
Solar energy
5 kWh/m²
Travel score
8.6
out of 10

Cortazar is municipal seat of Cortazar, State of Guanajuato, Mexico.

Founded
1721

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 24°C through the month.

A typical January day in Cortazar reaches about 24°C in the afternoon and slips back to 8°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°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)
1248
2248
3248
4248
5248
6248
7248
8248
9248
10248
11248
12248
13248
14248
15248
16248
17248
18248
19248
20248
21248
22248
23248
24248
25248
26248
27248
28249
29249
30259
31259

Cortazar 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
Jan24° / 112.110.98.6
Feb26° / 10°13211.38.3
Mar29° / 11°111.911.97.3
Apr31° / 14°112.612.55.6
May31° / 16°447.1134.8
Jun29° / 16°13314.413.24.8
Jul27° / 15°14918.513.15.2
Aug27° / 15°12916.512.75.4
Sep26° / 15°11615.112.15.7
Oct27° / 13°427.111.57.1
Nov26° / 11°132.7118.3
Dec24° / 4110.88.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26535
36535
46634
56733
66733
76832
86832
96931
107030
117030
127030
137030
147030
157030
167030
177030
186931
196931
206832
216832
226832
236832
246733
256733
266733
276634
286634
296733
306733
316733

Chance of precipitation in January

Any precipitation

Cortazar gets around 11 mm of rain over 2.1 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 7% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
55
65
75
85
95
106
116
126
136
146
157
167
177
187
197
207
218
228
238
248
259
269
279
2810
2910
3010
3110

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 8 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 7:24 AM to 7:25 AM, and sunset from 6:10 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:246:10
210.87:246:11
310.87:246:12
410.87:256:12
510.87:256:13
610.87:256:13
710.87:256:14
810.87:266:15
910.87:266:15
1010.87:266:16
1110.87:266:16
1210.87:266:17
1310.97:266:18
1410.97:266:18
1510.97:276:19
1610.97:276:20
1710.97:276:20
1810.97:276:21
1910.97:276:22
2010.97:276:22
2110.97:276:23
2210.97:276:23
2311.07:276:24
2411.07:266:25
2511.07:266:25
2611.07:266:26
2711.07:266:27
2811.07:266:27
2911.07:266:28
3011.17:256:29
3111.17:256:29

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5 kWh/m².

For context, solar energy here swings from a low near 4.84 kWh/m² to a high of 7.47 kWh/m² in April across the year — January's 5 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in January

Hazard calendar for Cortazar

In seasonPeak

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

Cortazar'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 Cortazar?

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

8.6
Sightseeing
2nd-best month of the year
7.2
Beach & pool
6th-best month of the year

January is one of the better times to visit Cortazar for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cortazar in January

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

In January, Cortazar sees daytime highs around 24°C and nights near 8°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Cortazar in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cortazar peaks around June 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 14UV 14Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun14Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Cortazar 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 Cortazar is worst in May — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1226 µg/m³Oct 1517 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb23Moderate
Mar20Moderate
Apr24Moderate
May27Moderate
Jun18Moderate
Jul21Moderate
Aug18Moderate
Sep19Moderate
Oct17Moderate
Nov21Moderate
Dec26Moderate
Location & terrain

Where is Cortazar?

Cortazar sits at 20.5°N, 101.0°W, 1,788 m above sea level, in Mexico. The nearest listed city is Villagrán, 5.0 km away.

Topography around Cortazar

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

Within 3 km, the terrain around Cortazar has only modest variations in elevation — a maximum elevation change of 114 m around an average of 1,740 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,127 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,476 m.

The land around Cortazar is covered by cropland (42%) and artificial surfaces (28%) within 3 km, cropland (53%) within 16 km, and cropland (35%) and shrubs (27%) within 80 km.

3 km
114 m
16 km
1,127 m
80 km
1,476 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Villagrán 5.0 km · Celaya 16 km · Jaral del Progreso 16 km · Juventino Rosas 18 km · Valle de Santiago 26 km · Salamanca 26 km · Apaseo el Grande 30 km · Salvatierra 31 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 Cortazar (20.483°, -100.9635°, elevation 1,788 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).