Climate and average weather in Juliaca
In Juliaca, the weather is mild, wet, and mostly cloudy and remarkably steady, with daytime highs holding near mild levels all year. The wettest stretch peaks around January.
Over the course of the year, the temperature in Juliaca typically varies from -3°C to 18°C, and is rarely below -5°C or above 21°C. November is the hottest month of the year, while February is the coldest.
Based on the travel score, the best time of year to visit Juliaca for warm-weather activities is from early May to mid October.
- Hottest
- Nov
- 18°
- Coldest
- Feb
- 5°
- Wettest
- Jan
- 193 mm
- Driest
- Jun
- 7 mm
- Rain / yr
- 993 mm
- 165 wet days
- Daylight
- 11.1–12.9 h
- shortest–longest
- Elevation
- 3,834 m
- 15.5°S
- Clearest
- Jul
- 34% cloud
Juliaca is capital city of San Román, Puno, Peru.
- Founded
- 1926
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Juliaca weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early May to mid October.
Temperature through the year
Daily average highs and lows in Juliaca, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Juliaca stay fairly even through the year, without a distinct hot or cool season. The warmest month is November, with an average high of 18°C and low of 4°C; the coolest is February, with an average low of 5°C and high of 15°C.
Days typically run about 14°C warmer than nights, with the widest day–night swing (around 19°C) in July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 16 |
| Avg low (°C) | 5 | 5 | 5 | 3 | -1 | -2 | -2 | -1 | 1 | 3 | 4 | 5 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 15 | 5 |
| Feb | 15 | 5 |
| Mar | 15 | 5 |
| Apr | 15 | 3 |
| May | 16 | -1 |
| Jun | 16 | -2 |
| Jul | 16 | -2 |
| Aug | 17 | -1 |
| Sep | 17 | 1 |
| Oct | 18 | 3 |
| Nov | 18 | 4 |
| Dec | 16 | 5 |
How hot and cold Juliaca really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the coldest nights, wind chill pulls the feels-like down to about -6°C (around July 13), with roughly 151 freezing days a year (feels-like at or below 0°C), worst in July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 16 |
| Air high (°C) | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 16 |
| Feels-like low (°C) | 4 | 4 | 3 | 1 | -3 | -5 | -5 | -4 | -1 | 2 | 3 | 4 |
| Air low (°C) | 5 | 5 | 5 | 3 | -1 | -2 | -2 | -1 | 1 | 3 | 4 | 5 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 15 | 15 | 4 | 5 |
| Feb | 15 | 15 | 4 | 5 |
| Mar | 15 | 15 | 3 | 5 |
| Apr | 15 | 15 | 1 | 3 |
| May | 16 | 16 | -3 | -1 |
| Jun | 16 | 16 | -5 | -2 |
| Jul | 16 | 16 | -5 | -2 |
| Aug | 17 | 17 | -4 | -1 |
| Sep | 17 | 17 | -1 | 1 |
| Oct | 18 | 18 | 2 | 3 |
| Nov | 18 | 18 | 3 | 4 |
| Dec | 16 | 16 | 4 | 5 |
Average hourly temperature in Juliaca
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on November afternoons, near 18°C, and coldest before dawn in February, near 5°C.
Juliaca weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 15° / 5° | 193 | 26.3 | 0.8 | 12.8 | 2.7 |
| Feb | 15° / 5° | 181 | 23.7 | 0.3 | 12.5 | 2.6 |
| Mar | 15° / 5° | 151 | 25.2 | 0.6 | 12.1 | 2.9 |
| Apr | 15° / 3° | 75 | 15.8 | 0.2 | 11.7 | 4.0 |
| May | 16° / -1° | 22 | 5.4 | 0.1 | 11.3 | 5.7 |
| Jun | 16° / -2° | 7 | 1.7 | 0.2 | 11.1 | 6.2 |
| Jul | 16° / -3° | 7 | 2 | 0.1 | 11.2 | 6.3 |
| Aug | 17° / -1° | 18 | 4.8 | 0.4 | 11.5 | 6.3 |
| Sep | 17° / 1° | 46 | 10.3 | 0.5 | 11.9 | 5.8 |
| Oct | 18° / 3° | 78 | 14.3 | 0.9 | 12.4 | 5.2 |
| Nov | 18° / 4° | 76 | 14.1 | 0.5 | 12.7 | 5.0 |
| Dec | 16° / 5° | 140 | 21.7 | 0.5 | 12.9 | 3.6 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Juliaca gets about 993 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.
The wetter season lasts 5.2 months, from around Nov 13 to Apr 20, peaking in February at about 87% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 19.
January is the wettest month by volume, with 193 mm over about 26 wet days; June is the driest, with 7 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 84 | 85 | 80 | 53 | 18 | 6 | 7 | 16 | 34 | 45 | 48 | 70 |
| Rain days | 26 | 24 | 25 | 16 | 5 | 2 | 2 | 5 | 10 | 14 | 14 | 22 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 84 | 26 |
| Feb | 85 | 24 |
| Mar | 80 | 25 |
| Apr | 53 | 16 |
| May | 18 | 5 |
| Jun | 6 | 2 |
| Jul | 7 | 2 |
| Aug | 16 | 5 |
| Sep | 34 | 10 |
| Oct | 45 | 14 |
| Nov | 48 | 14 |
| Dec | 70 | 22 |
Monthly rainfall
Over a full year, Juliaca collects about 993 mm of rain across 165 wet days — roughly 83 mm in an average month.
It doesn’t fall evenly. January is the wettest month with 193 mm, while June is the driest at just 7 mm. The three wettest months alone bring about 53% of the year’s total, and some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 193 | 181 | 151 | 75 | 22 | 7 | 7 | 18 | 46 | 78 | 76 | 140 |
| Rain days | 26 | 24 | 25 | 16 | 5 | 2 | 2 | 5 | 10 | 14 | 14 | 22 |
| Snow days | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 193 | 26 | 1 |
| Feb | 181 | 24 | 0 |
| Mar | 151 | 25 | 1 |
| Apr | 75 | 16 | 0 |
| May | 22 | 5 | 0 |
| Jun | 7 | 2 | 0 |
| Jul | 7 | 2 | 0 |
| Aug | 18 | 5 | 0 |
| Sep | 46 | 10 | 1 |
| Oct | 78 | 14 | 1 |
| Nov | 76 | 14 | 1 |
| Dec | 140 | 22 | 1 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Juliaca, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around April 17 and lasts for 5.8 months, ending around October 9. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 83% of the time on average.
The cloudier part of the year begins around October 10 and lasts for 6.2 months, ending around April 16. The cloudiest month is January, when it is overcast or mostly cloudy 91% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 9 | 11 | 18 | 43 | 71 | 79 | 83 | 79 | 64 | 38 | 23 | 11 |
| Cloudier (%) | 91 | 89 | 82 | 57 | 29 | 21 | 17 | 21 | 36 | 62 | 77 | 89 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 9 | 91 |
| Feb | 11 | 89 |
| Mar | 18 | 82 |
| Apr | 43 | 57 |
| May | 71 | 29 |
| Jun | 79 | 21 |
| Jul | 83 | 17 |
| Aug | 79 | 21 |
| Sep | 64 | 36 |
| Oct | 38 | 62 |
| Nov | 23 | 77 |
| Dec | 11 | 89 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 12 h 54 min of light; the shortest, around June 1, only 11 h 06 min — a swing of roughly 1 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.8 | 12.5 | 12.1 | 11.7 | 11.3 | 11.1 | 11.2 | 11.5 | 11.9 | 12.4 | 12.7 | 12.9 |
| Sunrise (AM) | 5:25 | 5:40 | 5:47 | 5:51 | 5:58 | 6:08 | 6:11 | 6:00 | 5:37 | 5:15 | 5:04 | 5:09 |
| Sunset (PM) | 6:15 | 6:11 | 5:53 | 5:30 | 5:15 | 5:13 | 5:21 | 5:29 | 5:32 | 5:36 | 5:48 | 6:04 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 12.8 | 5:25 | 6:15 |
| Feb | 12.5 | 5:40 | 6:11 |
| Mar | 12.1 | 5:47 | 5:53 |
| Apr | 11.7 | 5:51 | 5:30 |
| May | 11.3 | 5:58 | 5:15 |
| Jun | 11.1 | 6:08 | 5:13 |
| Jul | 11.2 | 6:11 | 5:21 |
| Aug | 11.5 | 6:00 | 5:29 |
| Sep | 11.9 | 5:37 | 5:32 |
| Oct | 12.4 | 5:15 | 5:36 |
| Nov | 12.7 | 5:04 | 5:48 |
| Dec | 12.9 | 5:09 | 6:04 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Juliaca averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 19 days.
The sunnier stretch runs 5.6 months, from around Apr 20 to Oct 5. The sunniest month is July, with roughly 18 sunny days (bright).
The greyest month is December, down near 1 sunny days — about 96% fewer than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 1 | 1 | 2 | 7 | 16 | 17 | 18 | 15 | 10 | 6 | 3 | 1 |
| Sky | Gloomy | Gloomy | Gloomy | Gloomy | Bright | Bright | Bright | Mixed | Mixed | Gloomy | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 1 | Gloomy |
| Feb | 1 | Gloomy |
| Mar | 2 | Gloomy |
| Apr | 7 | Gloomy |
| May | 16 | Bright |
| Jun | 17 | Bright |
| Jul | 18 | Bright |
| Aug | 15 | Mixed |
| Sep | 10 | Mixed |
| Oct | 6 | Gloomy |
| Nov | 3 | Gloomy |
| Dec | 1 | Gloomy |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Juliaca, the air stays dry or comfortable essentially all year. Even in January, the muggiest month, it feels humid or worse only about 0% of the time — humidity is not something you need to plan around here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Dry (%) | |
|---|---|
| Jan | 100 |
| Feb | 100 |
| Mar | 100 |
| Apr | 100 |
| May | 100 |
| Jun | 100 |
| Jul | 100 |
| Aug | 100 |
| Sep | 100 |
| Oct | 100 |
| Nov | 100 |
| Dec | 100 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Wind in Juliaca is steady company: average speeds sit near 6 km/h — calm — in every month of the year, with no meaningful windy or calm season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 6 | 6 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 6 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 6 | calm |
| Feb | 6 | calm |
| Mar | 5 | calm |
| Apr | 6 | calm |
| May | 6 | calm |
| Jun | 7 | calm |
| Jul | 7 | calm |
| Aug | 7 | calm |
| Sep | 7 | calm |
| Oct | 7 | calm |
| Nov | 7 | calm |
| Dec | 6 | calm |
Hazard calendar for Juliaca
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Juliaca's monsoon runs December–March, when most of the year's rain falls.
Best time to visit Juliaca
To characterize how pleasant the weather is in Juliaca throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid May, Juliaca is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Juliaca for general outdoor tourist activities is from early May to mid October, with a peak score in the last week of July.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 2.7 | 2.6 | 2.9 | 4.0 | 5.7 | 6.2 | 6.3 | 6.3 | 5.8 | 5.2 | 5.0 | 3.6 |
| Rating | poor | poor | poor | fair | good | good | good | good | good | fair | fair | fair |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 2.7 | poor |
| Feb | 2.6 | poor |
| Mar | 2.9 | poor |
| Apr | 4.0 | fair |
| May | 5.7 | good |
| Jun | 6.2 | good |
| Jul | 6.3 | good |
| Aug | 6.3 | good |
| Sep | 5.8 | good |
| Oct | 5.2 | fair |
| Nov | 5.0 | fair |
| Dec | 3.6 | fair |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Juliaca for hot-weather activities is from late August to late November, with a peak score in the second week of November.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Juliaca, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
Juliaca packs about the same all year — highs hold near 18°C. Across the year the things worth having are a warm layer, rain gear and sun protection.
In November, Juliaca sees daytime highs around 18°C and nights near 4°C. Pack rain gear and sun protection. Worth having: a warm layer. About 14 days see rain.
UV index (midday) in Juliaca by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 19 | 19 | 17 | 14 | 11 | 10 | 10 | 13 | 14 | 16 | 17 | 17 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 19 | Extreme |
| Feb | 19 | Extreme |
| Mar | 17 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 13 | Extreme |
| Sep | 14 | Extreme |
| Oct | 16 | Extreme |
| Nov | 17 | Extreme |
| Dec | 17 | Extreme |
Average hourly UV index in Juliaca
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 9 | 9 | 8.5 | 8 | 7 | 7 | 7 | 8 | 8 | 8.5 | 9 | 9 |
| UV ≥ 6 (h/day) | 7.5 | 7.5 | 7 | 6.5 | 5 | 4.5 | 5 | 6 | 6.5 | 7 | 7.5 | 7.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 7.5 |
| Feb | 9 | 7.5 |
| Mar | 8.5 | 7 |
| Apr | 8 | 6.5 |
| May | 7 | 5 |
| Jun | 7 | 4.5 |
| Jul | 7 | 5 |
| Aug | 8 | 6 |
| Sep | 8 | 6.5 |
| Oct | 8.5 | 7 |
| Nov | 9 | 7.5 |
| Dec | 9 | 7.5 |
Growing season
The growing season in Juliaca typically lasts about 253 days, from around August 31 to May 10 — the span where a frost-free day is more likely than not. It is reliably frost-free from October 2 to April 18.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 90 | 41 | 12 | 8 | 31 | 73 | 96 | 99 | 100 |
| Frost nights | 0 | 0 | 0 | 14 | 31 | 30 | 31 | 31 | 30 | 5 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 90 | 14 |
| May | 41 | 31 |
| Jun | 12 | 30 |
| Jul | 8 | 31 |
| Aug | 31 | 31 |
| Sep | 73 | 30 |
| Oct | 96 | 5 |
| Nov | 99 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Juliaca banks about 67 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around November.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 33 | 21 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 0 |
| May | 0 |
| Jun | 0 |
| Jul | 0 |
| Aug | 0 |
| Sep | 0 |
| Oct | 12 |
| Nov | 33 |
| Dec | 21 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Juliaca receives about 6.7 kWh/m² a day of solar energy on average — intense — with a clear seasonal swing between 5.6 and 8.0 kWh/m².
The brighter stretch of the year lasts 5.5 months, from around Aug 26 to Feb 8. The brightest month is November, averaging about 7.9 kWh/m² (intense).
The dimmest month is June, down near 5.6 kWh/m² — roughly 30% less than the November peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.8 | 6.6 | 6.5 | 6.2 | 5.9 | 5.6 | 5.8 | 6.5 | 7.2 | 7.8 | 8.0 | 7.4 |
| Level | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.8 | Intense |
| Feb | 6.6 | Intense |
| Mar | 6.5 | Intense |
| Apr | 6.2 | Intense |
| May | 5.9 | Bright |
| Jun | 5.6 | Bright |
| Jul | 5.8 | Bright |
| Aug | 6.5 | Intense |
| Sep | 7.2 | Intense |
| Oct | 7.8 | Intense |
| Nov | 8.0 | Intense |
| Dec | 7.4 | Intense |
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.
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.
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
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).