Cajamarca weather in October

In October, Cajamarca sees average daytime highs of 17°C and overnight lows near 8°C, with 278 mm of rain across 25.7 wet days and about 12.2 hours of daylight. It is the 7th-warmest and 6th-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 3% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 06 min at the start of October to 12 h 18 min by month's end. Set against the rest of the year, October is Cajamarca's 6th-clearest and 6th-windiest month. For the whole year in context, see Cajamarca's year-round climate.

Daytime high
17°
7th warmest
Overnight low
6th coldest
Rainfall
278 mm
25.7 wet days
Daylight
12 h 12 min
5:54 AM – 6:04 PM
Cloud cover
78%
6th clearest
Wind
4 km/h
6th windiest
Solar energy
5.95 kWh/m²
Travel score
3.6
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 October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical October day in Cajamarca reaches about 17°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 16°C and 19°C. Set against its neighbours, October runs on par with September and on par with November.

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
24178
25178
26178
27178
28178
29178
30178
31178

Cajamarca weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 6th-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 82%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22476
32476
42476
52476
62377
72377
82377
92278
102278
112179
122179
132080
142080
151981
161882
171783
181684
191585
201585
211387
221387
231288
241387
251288
261288
271189
281189
291189
301189
311387

Chance of precipitation in October

Any precipitation

Cajamarca gets around 278 mm of rain over 25.7 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 82% and peaks near 86% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
186
286
386
485
584
684
783
882
981
1081
1181
1281
1381
1481
1581
1681
1781
1882
1982
2083
2183
2283
2383
2483
2582
2681
2780
2879
2978
3077
3176

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October 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 October

Winds average 4 km/h in October.

Across October, 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 October

DaylightNight

Daylight runs from about 12 h 06 min at the start of October to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over October. Sunrise moves from 6:01 AM to 5:50 AM, and sunset from 6:05 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:016:05
212.16:016:05
312.16:006:05
412.16:006:05
512.15:596:04
612.15:596:04
712.15:586:04
812.15:586:04
912.15:576:04
1012.15:576:04
1112.15:566:04
1212.15:566:04
1312.15:556:04
1412.15:556:04
1512.25:556:04
1612.25:546:04
1712.25:546:04
1812.25:536:04
1912.25:536:04
2012.25:536:04
2112.25:526:04
2212.25:526:04
2312.25:526:04
2412.25:526:04
2512.25:516:04
2612.25:516:04
2712.25:516:05
2812.25:516:05
2912.25:506:05
3012.25:506:05
3112.35:506:05

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.95 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 — October's 5.95 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
66.0Bright
76.0Bright
86.0Bright
96.0Bright
106.0Bright
116.0Bright
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Bright
176.0Bright
186.0Bright
196.0Bright
206.0Bright
216.0Bright
226.0Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in October

Hazard calendar for Cajamarca

In seasonPeak

In October, 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 October a good time to visit Cajamarca?

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

3.6
Sightseeing
8th-best month of the year
1.0
Beach & pool
8th-best month of the year

October is a weaker month for outdoor sightseeing in Cajamarca.

What to pack for Cajamarca in October

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

In October, Cajamarca sees daytime highs around 17°C and nights near 8°C. Pack rain gear. Worth having: a warm layer and sun protection. About 26 days see rain.

rain geara warm layersun protection

UV index in Cajamarca in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 17 (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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).