Climate and average weather in Mollendo

In Mollendo, the summers are humid, warm, fairly dry, and mostly cloudy and the winters are mild and mostly cloudy.

Best: early January to mid June

Over the course of the year, the temperature in Mollendo typically varies from 13°C to 24°C, and is rarely below 11°C or above 26°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Mollendo for warm-weather activities are from early January to mid June and late August to late December.

Hottest
Feb
24°
Coldest
Jul
13°
Wettest
Jan
22 mm
Driest
Oct
7 mm
Rain / yr
164 mm
53 wet days
Daylight
11.0–13.0 h
shortest–longest
Elevation
70 m
17.0°S
Clearest
Sep
81% cloud

Mollendo is city of Peru.

Founded
1871

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Mollendo 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 January to mid June.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Mollendo, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Mollendo stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 24°C and low of 19°C; the coolest is July, with an average low of 13°C and high of 17°C.

Days typically run about 5°C warmer than nights year-round.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2419
Feb2419
Mar2419
Apr2217
May2115
Jun1814
Jul1713
Aug1713
Sep1813
Oct2014
Nov2116
Dec2217

Average hourly temperature in Mollendo

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 February afternoons, near 24°C, and coldest before dawn in July, near 13°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Mollendo weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 19°227.512.96.7
Feb24° / 19°206.712.66.7
Mar24° / 19°123.912.17.2
Apr22° / 17°82.311.67.3
May21° / 15°113.311.26.8
Jun18° / 14°196.9115.8
Jul17° / 13°217.611.15.3
Aug17° / 13°144.911.45.7
Sep18° / 13°92.711.96.5
Oct20° / 14°71.212.46.9
Nov21° / 16°81.912.87.0
Dec22° / 17°144.4136.8

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Mollendo gets about 164 mm of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.

The wetter season lasts 2.8 months, from around May 28 to Aug 20, peaking in June at about 26% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 4.

January is the wettest month by volume, with 22 mm over about 8 wet days; October is the driest, with 7 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetJun 26 · 26%Oct 4 · 4%
Rain on a day (%)Rain days
Jan248
Feb247
Mar134
Apr72
May113
Jun227
Jul248
Aug165
Sep93
Oct41
Nov62
Dec144

Monthly rainfall

Over a full year, Mollendo collects about 164 mm of rain across 53 wet days — roughly 14 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 22 mm, while October is the driest at just 7 mm. The three wettest months alone bring about 38% of the year’s total.

02550JanFebMarAprMayJunJulAugSepOctNovDec22201281119211497814
Rainfall (mm)Rain days
Jan228
Feb207
Mar124
Apr82
May113
Jun197
Jul218
Aug145
Sep93
Oct71
Nov82
Dec144

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Mollendo, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around August 15 and lasts for 2.9 months, ending around November 10. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 20% of the time on average.

The cloudier part of the year begins around May 30 and lasts for 2.5 months, ending around August 14. The cloudiest month is July, when it is overcast or mostly cloudy 96% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecOct 3 · 23%Jul 17 · 4%partly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan892
Feb694
Mar1189
Apr1882
May1684
Jun793
Jul496
Aug1387
Sep2080
Oct1981
Nov1189
Dec892

Daylight, sunrise and sunset

DaylightNight

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 13 hours of light; the shortest, around June 3, only 11 hours — a swing of roughly 2 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.95:306:25
Feb12.65:466:20
Mar12.15:546:01
Apr11.66:005:37
May11.26:085:20
Jun11.06:195:18
Jul11.16:215:26
Aug11.46:095:35
Sep11.95:455:40
Oct12.45:215:45
Nov12.85:095:58
Dec13.05:146:15

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Mollendo averages about 2 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 4 days.

The sunnier stretch runs 2.8 months, from around Aug 11 to Nov 3. The sunniest month is September, with roughly 4 sunny days (gloomy).

The greyest month is February, down near 0 sunny days — about 89% fewer than the September peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedSep 14 daysFeb 120 days
Sunny daysSky
Jan1Gloomy
Feb0Gloomy
Mar1Gloomy
Apr2Gloomy
May2Gloomy
Jun1Gloomy
Jul1Gloomy
Aug2Gloomy
Sep3Gloomy
Oct3Gloomy
Nov1Gloomy
Dec1Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

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 Mollendo, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 5.2 months, from around December 2 to May 7. The muggiest month is January, when the air feels humid, muggy or worse about 99% of the time.

The most comfortable stretch runs from around May 8 to December 1, and September is the most comfortable month — the air is dry or comfortable 98% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecSep 2 · 100%Jan 24 · 0%muggycomfortablehumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan0172271
Feb0052481
Mar0170300
Apr0237250
May1693000
Jun788500
Jul2871100
Aug4455100
Sep4058200
Oct1782100
Nov1831600
Dec0277030

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 Mollendo is steady company: average speeds sit near 10 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeOct 8 · 11 km/hJan 25 · 10 km/h
Wind speed (km/h)Feels
Jan10calm
Feb10calm
Mar10calm
Apr10calm
May10calm
Jun10calm
Jul10calm
Aug10calm
Sep11calm
Oct11calm
Nov11calm
Dec10calm

Best time to visit Mollendo

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Mollendo throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid January, Mollendo 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 Mollendo for general outdoor tourist activities is from late August to mid June, with a peak score in the last week of March.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationMar 30 · 7.4

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).

Travel score (0–10)Rating
Jan6.7good
Feb6.7good
Mar7.2good
Apr7.4good
May6.8good
Jun5.8good
Jul5.3fair
Aug5.7good
Sep6.5good
Oct6.9good
Nov6.9good
Dec6.8good

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 Mollendo for hot-weather activities is from mid December to late April, with a peak score in the second week of March.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationMar 13 · 6.3

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 Mollendo, by month

EssentialRecommendedOptional

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.

For a warm-season trip around February (highs near 24°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 17°C), pack a light layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Mollendo sees daytime highs around 24°C and nights near 19°C. Pack sun protection. Worth having: light clothes. About 7 days see rain.

Sea temperature near Mollendo

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 16 km away) is warmest in February at about 23°C and coldest in August near 17°C.

It's comfortable for a long swim from Nov 29 to May 6 — about 5.2 months when the water holds above 20°C.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb23Refreshing
Mar22Refreshing
Apr21Refreshing
May20Cool
Jun19Cool
Jul18Cool
Aug17Cool
Sep17Cool
Oct18Cool
Nov20Cool
Dec21Refreshing

UV index (midday) in Mollendo by month

LowModerateHighVery highExtreme

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 Mollendo peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 9UV 15Jul 10UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul7High
Aug9Very high
Sep11Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Average hourly UV index in Mollendo

LowModerateHighVery highExtreme

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 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan97
Feb8.57
Mar86
Apr7.55.5
May6.54.5
Jun63
Jul63
Aug74.5
Sep7.55.5
Oct86
Nov8.56.5
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Mollendo is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

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. Mollendo banks about 3,007 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan351
Feb333
Mar354
Apr295
May248
Jun181
Jul153
Aug154
Sep173
Oct215
Nov247
Dec303

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.

Mollendo receives about 5.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.8 and 6.9 kWh/m².

The brighter stretch of the year lasts 6.9 months, from around Sep 17 to Apr 13. The brightest month is December, averaging about 6.7 kWh/m² (intense).

The dimmest month is June, down near 3.9 kWh/m² — roughly 43% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 46.9 kWhJun 283.8 kWh
Solar energy (kWh/m²)Level
Jan6.3Intense
Feb6.2Intense
Mar6.0Bright
Apr5.4Bright
May4.5Bright
Jun3.8Moderate
Jul3.9Moderate
Aug4.6Bright
Sep5.5Bright
Oct6.2Intense
Nov6.8Intense
Dec6.8Intense

Where is Mollendo?

Mollendo sits at 17.0°S, 72.0°W, 70 m above sea level, in Peru. The nearest listed city is El Pedregal, 76 km away.

Topography around Mollendo

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

Within 3 km, the terrain around Mollendo has significant variations in elevation — a maximum elevation change of 407 m around an average of 82 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,294 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,397 m.

The land around Mollendo is covered by bare terrain (45%) and water (36%) within 3 km, water (44%) and bare terrain (43%) within 16 km, and bare terrain (59%) and water (36%) within 80 km.

3 km
407 m
16 km
1,294 m
80 km
3,397 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: El Pedregal 76 km · Jacobo Hunter 81 km · Ciudad Satelite 84 km · Arequipa 86 km · Camaná 86 km · Selva Alegre 89 km · Cono Norte 90 km · Ilo 98 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 Mollendo (-17.0231°, -72.0147°, elevation 70 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).