Climate and average weather in Cuilo

In Cuilo, the weather is hot, wet, and mostly clear and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around November.

Best: late April to late August

Over the course of the year, the temperature in Cuilo typically varies from 16°C to 31°C, and is rarely below 14°C or above 33°C. August is the hottest month of the year, while December is the coldest.

Based on the travel score, the best time of year to visit Cuilo for warm-weather activities is from late April to late August.

Hottest
Aug
31°
Coldest
Dec
18°
Wettest
Nov
211 mm
Driest
Jul
0 mm
Rain / yr
1417 mm
202 wet days
Daylight
11.5–12.5 h
shortest–longest
Elevation
1,059 m
8.2°S
Clearest
Jun
29% cloud

Cuilo 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 late April to late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Cuilo stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 31°C and low of 17°C; the coolest is December, with an average low of 18°C and high of 27°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 15°C) in July.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2718
Feb2818
Mar2818
Apr2818
May3017
Jun3016
Jul3116
Aug3117
Sep2918
Oct2818
Nov2718
Dec2718

Average hourly temperature in Cuilo

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 August afternoons, near 31°C, and coldest before dawn in December, near 18°C.

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

Cuilo 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
Jan27° / 18°18826.212.43.9
Feb28° / 18°15121.812.34.1
Mar28° / 18°19025.612.13.9
Apr28° / 18°14220.111.84.6
May30° / 17°163.511.66.0
Jun30° / 16°20.511.56.2
Jul31° / 16°00.111.66.1
Aug31° / 17°183.811.75.3
Sep29° / 18°10618.2124.2
Oct28° / 18°19026.812.23.8
Nov27° / 18°21127.312.43.7
Dec27° / 18°20427.712.53.7

Chance of rain

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

Cuilo gets about 1417 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 7.3 months, from around Sep 13 to Apr 22, peaking in November at about 92% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 8.

November is the wettest month by volume, with 211 mm over about 27 wet days; July is the driest, with 0 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetNov 28 · 92%Jul 8 · 0%
Rain on a day (%)Rain days
Jan8526
Feb7822
Mar8226
Apr6520
May134
Jun21
Jul10
Aug134
Sep6018
Oct8727
Nov9127
Dec9028

Monthly rainfall

Over a full year, Cuilo collects about 1417 mm of rain across 202 wet days — roughly 118 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 211 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 43% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec188151190142162018106190211204
Rainfall (mm)Rain days
Jan18826
Feb15122
Mar19026
Apr14220
May164
Jun21
Jul00
Aug184
Sep10618
Oct19027
Nov21127
Dec20428

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Cuilo, 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 26 and lasts for 4.9 months, ending around September 22. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 82% of the time on average.

The cloudier part of the year begins around September 23 and lasts for 7.1 months, ending around April 25. The cloudiest month is December, when it is overcast or mostly cloudy 94% 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%JanFebMarAprMayJunJulAugSepOctNovDecJun 20 · 85%Dec 16 · 6%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan793
Feb1189
Mar1189
Apr2773
May6436
Jun8218
Jul8119
Aug7327
Sep4555
Oct2377
Nov1189
Dec694

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 12 h 30 min of light; the shortest, around June 4, only 11 h 30 min — a swing of roughly 1 hour.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.45:386:04
Feb12.35:486:05
Mar12.15:505:53
Apr11.85:485:37
May11.65:495:27
Jun11.55:565:28
Jul11.66:015:34
Aug11.75:545:38
Sep12.05:385:35
Oct12.25:215:32
Nov12.45:165:39
Dec12.55:245:52

Sunny days

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

Cuilo averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 22 days.

The sunnier stretch runs 4.4 months, from around Apr 30 to Sep 11. The sunniest month is June, with roughly 20 sunny days (bright).

The greyest month is November, down near 0 sunny days — about 99% fewer than the June peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJun 2222 daysNov 210 days
Sunny daysSky
Jan0Gloomy
Feb1Gloomy
Mar1Gloomy
Apr3Gloomy
May13Mixed
Jun20Bright
Jul20Bright
Aug14Mixed
Sep6Gloomy
Oct2Gloomy
Nov0Gloomy
Dec0Gloomy

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

The more humid part of the year lasts 7.8 months, from around September 10 to May 3. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around May 4 to September 9, and July is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 15 · 100%Jan 6 · 0%muggyhumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan001981
Feb001882
Mar001090
Apr142173
May36262414
Jun86950
Jul95500
Aug6121162
Sep9123940
Oct011188
Nov00793
Dec001585

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.

Across the year, average wind speed in Cuilo is typically calm, near 6 km/h, and varies little with the seasons.

The windier part of the year lasts 4.6 months, from around Apr 27 to Sep 12. The windiest month is July, averaging about 9 km/h (calm).

The calmer part of the year runs from around Sep 13 to Apr 26, with November the calmest month at about 5 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeJul 5 · 9 km/hNov 6 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar5calm
Apr6calm
May8calm
Jun9calm
Jul9calm
Aug7calm
Sep6calm
Oct5calm
Nov5calm
Dec6calm

Hazard calendar for Cuilo

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Cuilo's rainy season runs September–April, when most of the year's rain falls.

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

Best time to visit Cuilo

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid August, Cuilo is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

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 Cuilo for general outdoor tourist activities is from late April to late August, with a peak score in the third week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 17 · 6.3

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
Jan3.9fair
Feb4.1fair
Mar3.9fair
Apr4.6fair
May6.0good
Jun6.2good
Jul6.1good
Aug5.3fair
Sep4.3fair
Oct3.8fair
Nov3.7fair
Dec3.7fair

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 Cuilo for hot-weather activities is from early May to late August, with a peak score in the last week of June.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJun 23 · 8.8

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 Cuilo, 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.

Cuilo packs about the same all year — highs hold near 31°C. Across the year the things worth having are light clothes, sun protection and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Cuilo sees daytime highs around 31°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

UV index (midday) in Cuilo 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 Cuilo peaks around January 20 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 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 highExtremeJan 20UV 16Jul 24UV 7
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May10Very high
Jun8Very high
Jul7Very high
Aug7Very high
Sep11Extreme
Oct14Extreme
Nov12Extreme
Dec13Extreme

Average hourly UV index in Cuilo

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 January 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)
Jan8.57
Feb8.56.5
Mar86.5
Apr86
May75
Jun74
Jul6.53.5
Aug6.53.5
Sep7.55.5
Oct86.5
Nov86
Dec86

Air quality in Cuilo by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Cuilo is worst in July — around 232 µg/m³ PM2.5 (very unhealthy), about 26.4× the cleanest month (April, 9 µg/m³).

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

0306090120150180210240JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateUnhealthyVery unhealthyUnhealthyModerateGoodJul 17216 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar11Good
Apr9Good
May25Moderate
Jun96Unhealthy
Jul232Very unhealthy
Aug104Unhealthy
Sep28Moderate
Oct14Moderate
Nov9Good
Dec10Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Cuilo 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. Cuilo banks about 4,770 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan389
Feb363
Mar400
Apr389
May420
Jun397
Jul413
Aug434
Sep411
Oct401
Nov372
Dec381

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.

Cuilo receives about 5.4 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 5.0 and 5.7 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseJul 165.7 kWhDec 245.0 kWh
Solar energy (kWh/m²)Level
Jan5.1Bright
Feb5.3Bright
Mar5.2Bright
Apr5.1Bright
May5.5Bright
Jun5.7Bright
Jul5.7Bright
Aug5.6Bright
Sep5.5Bright
Oct5.6Bright
Nov5.3Bright
Dec5.0Bright

Where is Cuilo?

Cuilo sits at 8.2°S, 19.5°E, 1,059 m above sea level, in Angola. The nearest listed city is Lubalo, 106 km away.

LubaloLucapaChitatoDundoCafunfoSaurimoCuango-LuzambaCassanguidi

Topography around Cuilo

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

Within 3 km, the terrain around Cuilo has only modest variations in elevation — a maximum elevation change of 87 m around an average of 1,042 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 127 m; within 80 km, significant variations in elevation — a maximum elevation change of 539 m.

The land around Cuilo is covered by grassland (47%), trees (24%) and shrubs (24%) within 3 km, grassland (55%) and trees (29%) within 16 km, and grassland (53%) and trees (41%) within 80 km.

3 km
87 m
16 km
127 m
80 km
539 m
treesshrubsgrasslandartificial surfaceswetland
Nearby: Lubalo 106 km · Lucapa 136 km · Chitato 169 km · Dundo 172 km · Cafunfo 178 km · Saurimo 185 km · Cuango-Luzamba 192 km · Cassanguidi 213 km

Angola travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$3,129
2025
Happiness
3.8 / 10
World Happiness, 2017
Homicide rate
4.1
per 100k, 2016
Road deaths
26.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 413
Religion
Roman Catholic 41%Protestant 38%none 12%other 9%

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 Cuilo (-8.2362°, 19.5257°, elevation 1,059 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).