Climate and average weather in Agadez

In Agadez, the summers are sweltering, dry, and clear and the winters are warm, breezy, and clear.

Best: early January to early February

Over the course of the year, the temperature in Agadez typically varies from 14°C to 41°C, and is rarely below 10°C or above 43°C. May is the hottest month of the year, while January is the coldest.

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

Hottest
May
41°
Coldest
Jan
14°
Wettest
Aug
37 mm
Driest
Jan
0 mm
Rain / yr
66 mm
18 wet days
Daylight
11.0–13.0 h
shortest–longest
Elevation
505 m
17.0°N
Clearest
Oct
18% cloud

Agadez 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 early February.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.0 months, from April 3 to August 2, with daily high temperatures above 38°C. The hottest month of the year in Agadez is May, with an average high of 41°C and low of 28°C.

The cool season lasts 1.9 months, from December 9 to February 4, with daily high temperatures below 30°C. The coldest month of the year in Agadez is January, with an average low of 14°C and high of 28°C.

Days typically run about 13°C warmer than nights year-round.

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2814
Feb3117
Mar3521
Apr3925
May4128
Jun4128
Jul3927
Aug3726
Sep3926
Oct3725
Nov3320
Dec2915

How hot and cold Agadez really feels

Feels-like highFeels-like lowactual air temp

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 hottest afternoons, once humidity is folded in, Agadez feels like about 41°C (around May 16). About 273 days a year carry some heat stress, and 105 of them tip into dangerous heat (feels-like above 39°C), peaking in May.

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan28281414
Feb31311717
Mar35352121
Apr39392525
May41412828
Jun41412828
Jul39392727
Aug39372626
Sep39392626
Oct37372525
Nov33331920
Dec29291515

Average hourly temperature in Agadez

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 May afternoons, near 41°C, and coldest before dawn in January, near 14°C.

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

Agadez 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
Jan28° / 14°0011.18.1
Feb31° / 17°0011.46.1
Mar35° / 21°00.111.93.2
Apr39° / 25°10.212.40.6
May41° / 28°10.312.80.0
Jun41° / 28°31.1130.0
Jul39° / 27°195.212.90.7
Aug37° / 26°378.912.61.4
Sep39° / 26°51.712.10.8
Oct37° / 25°00.111.61.9
Nov33° / 20°0011.24.8
Dec29° / 15°00117.5

Chance of rain

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

Agadez gets about 66 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 2.9 months, from around Jun 22 to Sep 17, peaking in August at about 30% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 1.

August is the wettest month by volume, with 37 mm over about 9 wet days; January is the driest, with 0 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetAug 11 · 30%Jan 1 · 0%
Rain on a day (%)Rain days
Jan00
Feb00
Mar00
Apr10
May10
Jun41
Jul175
Aug279
Sep72
Oct00
Nov00
Dec00

Monthly rainfall

Over a full year, Agadez collects about 66 mm of rain across 18 wet days — roughly 5 mm in an average month.

It doesn’t fall evenly. August is the wettest month with 37 mm, while January is the driest at just 0 mm. The three wettest months alone bring about 92% of the year’s total.

02550JanFebMarAprMayJunJulAugSepOctNovDec0113193750
Rainfall (mm)Rain days
Jan00
Feb00
Mar00
Apr10
May10
Jun31
Jul195
Aug379
Sep52
Oct00
Nov00
Dec00

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Agadez, 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 May 18 and lasts for 2.5 months, ending around July 31. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 95% of the time on average.

The cloudier part of the year begins around November 3 and lasts for 3.6 months, ending around February 20. The cloudiest month is December, when it is overcast or mostly cloudy 20% 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 15 · 96%Dec 7 · 78%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan8119
Feb8416
Mar8119
Apr8218
May8614
Jun955
Jul937
Aug8317
Sep8911
Oct919
Nov8218
Dec8020

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 June 3, brings about 13 hours of light; the shortest, around January 1, only 11 hours — a swing of roughly 2 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.17:056:10
Feb11.47:006:26
Mar11.96:416:34
Apr12.46:176:40
May12.86:016:48
Jun13.05:586:58
Jul12.96:067:01
Aug12.66:156:49
Sep12.16:206:25
Oct11.66:256:01
Nov11.26:385:49
Dec11.06:545:54

Sunny days

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

Agadez averages about 23 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 19 and 27 days.

The sunnier stretch runs 2.5 months, from around May 10 to Jul 23. The sunniest month is June, with roughly 26 sunny days (brilliant).

The greyest month is August, down near 20 sunny days — about 24% fewer than the June peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJun 2127 daysAug 919 days
Sunny daysSky
Jan22Bright
Feb21Bright
Mar22Bright
Apr21Bright
May23Bright
Jun26Brilliant
Jul25Brilliant
Aug20Bright
Sep23Brilliant
Oct26Brilliant
Nov21Bright
Dec21Bright

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

The more humid part of the year lasts 2.8 months, from around June 25 to September 18. The muggiest month is August, when the air feels humid, muggy or worse about 71% of the time.

The most comfortable stretch runs from around September 19 to June 24, and April 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%JanFebMarAprMayJunJulAugSepOctNovDecApr 6 · 100%Aug 12 · 25%oppressivemuggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr991000
May935200
Jun7913620
Jul322124194
Aug1217233314
Sep64151282
Oct981100
Nov1000000
Dec1000000

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 Agadez is typically light breeze, near 17 km/h, and varies moderately with the seasons.

The windier part of the year lasts 6.4 months, from around Oct 8 to Apr 21. The windiest month is January, averaging about 20 km/h (breezy).

The calmer part of the year runs from around Apr 22 to Oct 7, with August the calmest month at about 12 km/h.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezebreezyJan 9 · 21 km/hAug 26 · 12 km/h
Wind speed (km/h)Feels
Jan20breezy
Feb20breezy
Mar20light breeze
Apr18light breeze
May15light breeze
Jun13light breeze
Jul13light breeze
Aug12light breeze
Sep13light breeze
Oct18light breeze
Nov20light breeze
Dec20breezy

Hazard calendar for Agadez

In seasonPeak

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

Agadez sees seasonal dust haze (February–November), heaviest in June.

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

Best time to visit Agadez

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late January, Agadez 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 Agadez for general outdoor tourist activities is from mid December to early February, with a peak score in the first week of January.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJan 4 · 8.6

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
Jan8.1ideal
Feb6.0good
Mar3.2poor
Apr0.6poor
May0.0poor
Jun0.0poor
Jul0.7poor
Aug1.4poor
Sep0.8poor
Oct1.9poor
Nov4.8fair
Dec7.5good

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 Agadez for hot-weather activities is from early November to mid March, with a peak score in the last week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 29 · 9.2

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 Agadez, 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 May (highs near 41°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 28°C), pack light clothes, sun protection and a windbreaker.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In May, Agadez sees daytime highs around 41°C and nights near 28°C. Pack light clothes and sun protection.

UV index (midday) in Agadez 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 Agadez peaks around August 24 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highHighAug 24UV 12Dec 18UV 6
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar12Extreme
Apr11Extreme
May9Very high
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec6High

Average hourly UV index in Agadez

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 March the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended), and 5.5 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)
Jan63
Feb74.5
Mar7.55.5
Apr85.5
May7.55
Jun86
Jul86
Aug86
Sep7.56
Oct7.55.5
Nov6.54
Dec5.51.5

Air quality in Agadez 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 Agadez is worst in February — around 89 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (September, 44 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyFeb 1387 µg/m³Sep 1245 µg/m³
PM2.5 (µg/m³)Level
Jan82Unhealthy
Feb89Unhealthy
Mar77Unhealthy
Apr68Unhealthy
May65Unhealthy
Jun66Unhealthy
Jul58Unhealthy
Aug48Poor
Sep44Poor
Oct57Unhealthy
Nov58Unhealthy
Dec79Unhealthy
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Agadez 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. Agadez banks about 7,021 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around June.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan340
Feb392
Mar564
Apr670
May759
Jun734
Jul708
Aug672
Sep677
Oct648
Nov482
Dec373

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.

Agadez receives about 6.7 kWh/m² a day of solar energy on average — intense — with a clear seasonal swing between 5.5 and 7.6 kWh/m².

The brighter stretch of the year lasts 7.3 months, from around Feb 27 to Oct 7. The brightest month is April, averaging about 7.6 kWh/m² (intense).

The dimmest month is December, down near 5.5 kWh/m² — roughly 27% less than the April peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseApr 237.6 kWhDec 185.5 kWh
Solar energy (kWh/m²)Level
Jan5.7Bright
Feb6.3Intense
Mar7.1Intense
Apr7.6Intense
May7.5Intense
Jun7.3Intense
Jul7.0Intense
Aug6.7Intense
Sep6.8Intense
Oct6.5Intense
Nov5.9Bright
Dec5.5Bright

Where is Agadez?

Agadez sits at 17.0°N, 8.0°E, 505 m above sea level, in Niger. The nearest listed city is Alaghsas, 6.0 km away.

ArlitTanoutAbalakTchin TabaradènDakoroMayahiTessaoua

Topography around Agadez

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

Within 3 km, the terrain around Agadez has only modest variations in elevation — a maximum elevation change of 25 m around an average of 499 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 170 m; within 80 km, large variations in elevation — a maximum elevation change of 706 m.

The land around Agadez is covered by bare terrain (70%) and artificial surfaces (21%) within 3 km, bare terrain (84%) within 16 km, and bare terrain (90%) within 80 km.

3 km
25 m
16 km
170 m
80 km
706 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
Nearby: Alaghsas 6.0 km · Arlit 206 km · Tanout 242 km · Abalak 249 km · Tchin Tabaradèn 263 km · Dakoro 304 km · Mayahi 337 km · Tessaoua 358 km

Niger travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / B / C / D / E / F
220 V · 50 Hz
Prices
≈ 36% of US
price level, 2025
GDP per capita
$775
2025
Happiness
4.9 / 10
World Happiness, 2025
Homicide rate
4.4
per 100k, 2012
Road deaths
25.5
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 96%ethnic religionist 4%Christian 0%agnostics and other 0%

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 Agadez (16.9733°, 7.9911°, elevation 505 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).