Tan-Tan weather in May

In May, Tan-Tan sees average daytime highs of 25°C and overnight lows near 16°C, with 2 mm of rain across 0.4 wet days and about 13.4 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 55% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 06 min at the start of May to 13 h 42 min by month's end. Set against the rest of the year, May is Tan-Tan's 10th-clearest and 3rd-windiest month. For the whole year in context, see Tan-Tan's year-round climate.

Daytime high
25°
6th warmest
Overnight low
16°
7th coldest
Rainfall
2 mm
0.4 wet days
Daylight
13 h 24 min
5:58 AM – 7:23 PM
Cloud cover
39%
10th clearest
Wind
20 km/h
3rd windiest
Solar energy
7.1 kWh/m²
Travel score
8.8
out of 10

Tan-Tan is city in Morocco.

Density
3,123/km²
people per km²

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical May day in Tan-Tan reaches about 25°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 31°C. Set against its neighbours, May runs about 1°C warmer than April and about 1°C cooler than June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12416
22416
32416
42416
52416
62416
72516
82516
92516
102516
112516
122516
132516
142516
152516
162516
172516
182516
192517
202517
212517
222517
232517
242517
252517
262517
272517
282517
292517
302517
312517

Tan-Tan weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 11°92.110.48.1
Feb22° / 12°142.2118.3
Mar24° / 14°102.211.88.7
Apr24° / 15°4112.78.8
May25° / 16°20.413.48.8
Jun26° / 18°10.313.88.7
Jul28° / 19°10.113.68.0
Aug29° / 20°20.3137.1
Sep28° / 19°50.812.27.8
Oct27° / 18°91.311.38.1
Nov25° / 15°101.910.68.5
Dec22° / 12°122.610.28.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27327
37327
47426
57426
67426
77327
87327
97327
107228
117327
127327
137327
147228
157228
167228
177327
187327
197327
207327
217426
227525
237525
247624
257723
267723
277822
287822
298020
308020
318020

Chance of precipitation in May

Any precipitation

Tan-Tan gets around 2 mm of rain over 0.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 1% and peaks near 2% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
42
52
62
72
82
92
102
112
122
132
142
152
162
172
182
192
201
211
221
231
241
251
261
270
280
290
300
310

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the comfortable band about 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
156422
255432
355432
454442
553443
652453
751454
850464
948475
1047485
1145496
1243516
1342517
1440537
1538548
1637558
1735578
1834579
1932599
20315910
21296110
22286210
23276211
24256312
25246313
26236314
27216415
28206317
29196219
30176221
31166123

Wind in May

Winds average 20 km/h in May.

Across May, daily wind ranges from about 20 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120breezy
220breezy
320light breeze
420light breeze
520light breeze
620light breeze
720light breeze
820light breeze
920light breeze
1020light breeze
1120light breeze
1220light breeze
1320light breeze
1420light breeze
1520light breeze
1620light breeze
1720light breeze
1820light breeze
1920light breeze
2020light breeze
2120light breeze
2220light breeze
2320breezy
2420breezy
2520breezy
2620breezy
2720breezy
2820breezy
2920breezy
3020breezy
3120breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 06 min at the start of May to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 6:09 AM to 5:52 AM, and sunset from 7:14 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:097:14
213.16:097:14
313.16:087:15
413.16:077:16
513.26:067:16
613.26:057:17
713.26:047:17
813.26:047:18
913.36:037:19
1013.36:027:19
1113.36:027:20
1213.36:017:21
1313.36:007:21
1413.46:007:22
1513.45:597:22
1613.45:587:23
1713.45:587:24
1813.45:577:24
1913.55:577:25
2013.55:567:25
2113.55:567:26
2213.55:557:27
2313.55:557:27
2413.65:547:28
2513.65:547:28
2613.65:547:29
2713.65:537:29
2813.65:537:30
2913.65:537:31
3013.65:527:31
3113.75:527:32

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.1 kWh/m².

For context, solar energy here swings from a low near 3.55 kWh/m² to a high of 7.17 kWh/m² in June across the year — May's 7.1 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.1Intense
127.1Intense
137.1Intense
147.1Intense
157.1Intense
167.1Intense
177.1Intense
187.1Intense
197.1Intense
207.1Intense
217.1Intense
227.1Intense
237.2Intense
247.2Intense
257.2Intense
267.2Intense
277.2Intense
287.2Intense
297.2Intense
307.2Intense
317.2Intense
Planning a trip in May

Hazard calendar for Tan-Tan

In seasonPeak

None of Tan-Tan's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Tan-Tan sees seasonal dust haze (July–August), heaviest in July.

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

Is May a good time to visit Tan-Tan?

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

8.8
Sightseeing
1st-best month of the year
7.8
Beach & pool
6th-best month of the year

May is one of the better times to visit Tan-Tan for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tan-Tan in May

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

In May, Tan-Tan sees daytime highs around 25°C and nights near 16°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Tan-Tan in May

The nearest coast averages about 18°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in September at about 21°C and coldest in February near 17°C.

It's comfortable for a long swim from Jul 30 to Oct 25 — about 2.9 months when the water holds above 20°C.

16°18°20°22°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb17Cool
Mar17Cool
Apr18Cool
May18Cool
Jun19Cool
Jul20Cool
Aug20Refreshing
Sep21Refreshing
Oct20Refreshing
Nov19Cool
Dec18Cool

UV index in Tan-Tan in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tan-Tan peaks around June 21 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJun 21UV 11Dec 16UV 4
UV index (midday)Level
Jan5Moderate
Feb6High
Mar9Very high
Apr8Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct8Very high
Nov5Moderate
Dec4Moderate

Air quality in Tan-Tan in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Tan-Tan is worst in February — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodGoodModerateFeb 1321 µg/m³Jun 119 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb21Moderate
Mar13Moderate
Apr11Good
May9Good
Jun9Good
Jul12Good
Aug14Moderate
Sep11Good
Oct13Moderate
Nov10Good
Dec17Moderate
Location & terrain

Where is Tan-Tan?

Tan-Tan sits at 28.4°N, 11.1°W, 45 m above sea level, in Morocco. The nearest listed city is Guelmim, 119 km away.

GuelmimSidi IfniBou IzakarnAssaTiznitSmaraArrecifeTeguise

Topography around Tan-Tan

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

Within 3 km, the terrain around Tan-Tan has only modest variations in elevation — a maximum elevation change of 79 m around an average of 53 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 295 m; within 80 km, large variations in elevation — a maximum elevation change of 952 m.

The land around Tan-Tan is covered by bare terrain (78%) within 3 km, bare terrain (96%) within 16 km, and bare terrain (68%) and water (26%) within 80 km.

3 km
79 m
16 km
295 m
80 km
952 m
shrubsgrasslandartificial surfacesbare terrainwater
May weather nearby: Guelmim 119 km · Sidi Ifni 138 km · Bou Izakarn 159 km · Assa 165 km · Tiznit 193 km · Smara 197 km · Arrecife 245 km · Teguise 250 km

Morocco travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 42% of US
price level, 2025
GDP per capita
$4,672
2025
Happiness
4.6 / 10
World Happiness, 2025
Safe drinking water
80%
of population, 2024
Homicide rate
1.7
per 100k, 2023
Road deaths
17
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 492
Religion
Muslim 99%other 1%

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 Tan-Tan (28.438°, -11.1032°, elevation 45 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. 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).