Cajamarca weather in January

In January, Cajamarca sees average daytime highs of 17°C and overnight lows near 8°C, with 359 mm of rain across 26.6 wet days and about 12.4 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 1% of the time in January, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of January to 12 h 18 min by month's end. Set against the rest of the year, January is Cajamarca's 10th-clearest and 9th-windiest month. For the whole year in context, see Cajamarca's year-round climate.

Daytime high
17°
10th warmest
Overnight low
9th coldest
Rainfall
359 mm
26.6 wet days
Daylight
12 h 24 min
6:12 AM – 6:35 PM
Cloud cover
84%
10th clearest
Wind
4 km/h
9th windiest
Solar energy
5.43 kWh/m²
Travel score
3.3
out of 10

Cajamarca is capital city of Cajamarca, Peru.

Density
513/km²
people per km²
Founded
1320

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 17°C through the month.

A typical January day in Cajamarca reaches about 17°C in the afternoon and slips back to 8°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 19°C. Set against its neighbours, January runs on par with December and on par with February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1178
2178
3178
4178
5178
6178
7178
8178
9178
10178
11178
12178
13178
14178
15178
16178
17178
18178
19178
20178
21178
22178
23178
24179
25179
26179
27179
28179
29179
30179
31179

Cajamarca weather by month

How January compares with the rest of the year at a glance. January is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 35926.612.43.3
Feb17° / 43025.412.23.1
Mar17° / 49529.4123.0
Apr17° / 31426.711.83.3
May18° / 15821.511.74.3
Jun18° / 5810.811.65.9
Jul18° / 326.811.66.6
Aug19° / 438.711.86.5
Sep18° / 16719.8124.5
Oct17° / 27825.712.23.6
Nov18° / 24320.912.34.0
Dec17° / 3172412.43.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 7% of January, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11189
21189
31090
41090
51090
61090
71189
81189
91189
101189
111189
121090
131090
141090
151090
16991
17991
18991
19892
20892
21892
22892
23694
24694
25694
26694
27595
28595
29496
30496
31496

Chance of precipitation in January

Any precipitation

Cajamarca gets around 359 mm of rain over 26.6 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 86% and peaks near 93% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
182
282
382
482
582
682
782
882
982
1082
1182
1282
1383
1483
1583
1684
1784
1885
1986
2087
2187
2288
2389
2490
2590
2691
2792
2892
2992
3093
3193

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 4 km/h in January.

Across January, daily wind ranges from about 4 km/h on the calmest days to 4 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
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 24 min at the start of January to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over January. Sunrise moves from 6:05 AM to 6:18 AM, and sunset from 6:29 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:056:29
212.46:056:30
312.46:066:30
412.46:066:31
512.46:076:31
612.46:076:31
712.46:086:32
812.46:086:32
912.46:096:32
1012.46:096:33
1112.46:106:33
1212.46:106:33
1312.46:116:34
1412.46:116:34
1512.46:126:34
1612.46:126:35
1712.46:126:35
1812.46:136:35
1912.46:136:35
2012.46:146:35
2112.46:146:36
2212.46:156:36
2312.36:156:36
2412.36:156:36
2512.36:166:36
2612.36:166:36
2712.36:176:36
2812.36:176:37
2912.36:176:37
3012.36:186:37
3112.36:186:37

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.43 kWh/m².

For context, solar energy here swings from a low near 4.91 kWh/m² to a high of 6.25 kWh/m² in November across the year — January's 5.43 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in January

Hazard calendar for Cajamarca

In seasonPeak

In January, Cajamarca sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Cajamarca's rainy season runs October–April, 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 Cajamarca?

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

3.3
Sightseeing
9th-best month of the year
0.9
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Cajamarca.

What to pack for Cajamarca in January

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

In January, Cajamarca sees daytime highs around 17°C and nights near 8°C. Pack rain gear. Worth having: sun protection. About 27 days see rain.

rain gearsun protection

UV index in Cajamarca in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 18 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cajamarca peaks around February 16 at about 19 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 16UV 19Jun 22UV 12
UV index (midday)Level
Jan18Extreme
Feb19Extreme
Mar18Extreme
Apr15Extreme
May14Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep15Extreme
Oct17Extreme
Nov16Extreme
Dec15Extreme

Air quality in Cajamarca 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 Cajamarca is worst in November — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateNov 1615 µg/m³Jul 158 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar12Moderate
Apr12Moderate
May11Good
Jun9Good
Jul8Good
Aug10Good
Sep14Moderate
Oct12Good
Nov15Moderate
Dec12Good
Location & terrain

Where is Cajamarca?

Cajamarca sits at 7.2°S, 78.5°W, 2,700 m above sea level, in Peru. The nearest listed city is Huamachuco, 85 km away.

San Pedro de LlocLaredo

Topography around Cajamarca

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

Within 3 km, the terrain around Cajamarca has significant variations in elevation — a maximum elevation change of 450 m around an average of 2,723 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,410 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,163 m.

The land around Cajamarca is covered by artificial surfaces (45%) and cropland (42%) within 3 km, grassland (53%) and cropland (31%) within 16 km, and grassland (67%) within 80 km.

3 km
450 m
16 km
2,410 m
80 km
4,163 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
January weather nearby: Huamachuco 85 km · Chepén 102 km · Chocope 106 km · Paiján 109 km · Guadalupe 109 km · Chongoyape 114 km · San Pedro de Lloc 115 km · Laredo 115 km

Peru travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
220 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$9,684
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
8.6
per 100k, 2021
Road deaths
13.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 519
Religion
Catholic 76%Evangelical Christian 16%no religion 5%other religions 3%

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 Cajamarca (-7.1638°, -78.5003°, elevation 2,700 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).