Juliaca weather in January

In January, Juliaca sees average daytime highs of 15°C and overnight lows near 5°C, with 193 mm of precipitation across 26.3 wet days and about 12.8 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 15°C through the month. The sky is clear or mostly clear about 3% of the time in January, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of January to 12 h 42 min by month's end. Set against the rest of the year, January is Juliaca's 12th-clearest and 9th-windiest month. For the whole year in context, see Juliaca's year-round climate.

Daytime high
15°
10th warmest
Overnight low
12th coldest
Precipitation
193 mm
26.3 wet days
Daylight
12 h 48 min
5:25 AM – 6:15 PM
Cloud cover
86%
12th clearest
Wind
6 km/h
9th windiest
Solar energy
6.85 kWh/m²
Travel score
2.7
out of 10

Juliaca is capital city of San Román, Puno, Peru.

Founded
1926

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 15°C through the month.

A typical January day in Juliaca reaches about 15°C in the afternoon and slips back to 5°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 17°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1155
2155
3155
4155
5155
6155
7155
8155
9155
10155
11155
12155
13155
14155
15155
16155
17155
18155
19155
20155
21155
22155
23155
24155
25155
26155
27155
28155
29155
30155
31155

How January really feels in Juliaca

Once humidity and wind are folded in, January 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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Juliaca weather by month

How January compares with the rest of the year at a glance. January is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan15° / 19326.30.812.82.7
Feb15° / 18123.70.312.52.6
Mar15° / 15125.20.612.12.9
Apr15° / 7515.80.211.74.0
May16° / -1°225.40.111.35.7
Jun16° / -2°71.70.211.16.2
Jul16° / -3°720.111.26.3
Aug17° / -1°184.80.411.56.3
Sep17° / 4610.30.511.95.8
Oct18° / 7814.30.912.45.2
Nov18° / 7614.10.512.75.0
Dec16° / 14021.70.512.93.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of January, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1694
2694
3694
4694
5793
6793
7793
8793
9793
10793
11793
12991
13991
141090
151090
161090
171090
181189
191189
201189
211189
221189
231189
241189
251189
261189
271189
281189
291189
301090
311090

Chance of precipitation in January

Any precipitationSnow

Juliaca gets around 193 mm of rain and snow over 26.3 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 84% and peaks near 86% on the wettest days, and about 1 day brings snow.

0%20%40%60%80%100%151015202531
Rain chance (%)Snow chance (%)
1842
2842
3841
4831
5831
6831
7831
8832
9832
10832
11842
12842
13843
14853
15853
16853
17863
18864
19864
20864
21864
22864
23864
24854
25853
26843
27843
28843
29833
30832
31832

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 6 km/h in January.

Across January, 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 January

DaylightNight

Daylight runs from about 12 h 54 min at the start of January to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over January. Sunrise moves from 5:17 AM to 5:33 AM, and sunset from 6:11 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:176:11
212.95:176:11
312.95:186:12
412.95:186:12
512.95:196:12
612.95:196:12
712.95:206:13
812.95:206:13
912.95:216:13
1012.95:226:14
1112.95:226:14
1212.95:236:14
1312.85:236:14
1412.85:246:14
1512.85:246:15
1612.85:256:15
1712.85:266:15
1812.85:266:15
1912.85:276:15
2012.85:276:15
2112.85:286:15
2212.85:286:15
2312.85:296:15
2412.85:296:15
2512.85:306:15
2612.75:306:15
2712.75:316:15
2812.75:326:15
2912.75:326:15
3012.75:336:15
3112.75:336:15

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.85 kWh/m².

For context, solar energy here swings from a low near 5.58 kWh/m² to a high of 8 kWh/m² in November across the year — January's 6.85 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
116.9Intense
126.9Intense
136.9Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in January

Hazard calendar for Juliaca

In seasonPeak

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

Juliaca's monsoon runs December–March, when most of the year's rain falls.

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

Is January a good time to visit Juliaca?

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

2.7
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Juliaca.

What to pack for Juliaca in January

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

In January, Juliaca sees daytime highs around 15°C and nights near 5°C. Pack rain gear and sun protection. Worth having: a warm layer. About 26 days see rain.

rain gearsun protectiona warm layer

UV index in Juliaca in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 19 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Juliaca peaks around February 9 at about 19 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 9UV 19Jun 23UV 10
UV index (midday)Level
Jan19Extreme
Feb19Extreme
Mar17Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug13Extreme
Sep14Extreme
Oct16Extreme
Nov17Extreme
Dec17Extreme
Location & terrain

Where is Juliaca?

Juliaca sits at 15.5°S, 70.1°W, 3,834 m above sea level, in Peru. The nearest listed city is San Miguel, 3.0 km away.

Isla del SolLa RinconadaCopacabanaYauri

Topography around Juliaca

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

Within 3 km, the terrain around Juliaca has significant variations in elevation — a maximum elevation change of 271 m around an average of 3,847 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 501 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,579 m.

The land around Juliaca is covered by artificial surfaces (67%) and grassland (25%) within 3 km, grassland (51%) and cropland (39%) within 16 km, and grassland (67%) within 80 km.

3 km
271 m
16 km
501 m
80 km
1,579 m
grasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: San Miguel 3.0 km · Puno 40 km · Ilave 82 km · Ayaviri 84 km · Isla del Sol 121 km · La Rinconada 122 km · Copacabana 135 km · Yauri 158 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 Juliaca (-15.5°, -70.1333°, elevation 3,834 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).