Zarzis weather in May

In May, Zarzis sees average daytime highs of 23°C and overnight lows near 19°C, with 3 mm of rain across 0.8 wet days and about 13.7 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 70% of the time in May, and the air most often feels humid.

Daylight stretches from about 13 h 18 min at the start of May to 14 hours by month's end. Set against the rest of the year, May is Zarzis's 5th-clearest and 1st-windiest month. For the whole year in context, see Zarzis's year-round climate.

Daytime high
23°
6th warmest
Overnight low
19°
7th coldest
Rainfall
3 mm
0.8 wet days
Daylight
13 h 42 min
5:20 AM – 7:04 PM
Cloud cover
29%
5th clearest
Wind
20 km/h
1st windiest
Solar energy
7.09 kWh/m²
Travel score
8.9
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 24°C by the end.

A typical May day in Zarzis reaches about 23°C in the afternoon and slips back to 19°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, May runs about 3°C warmer than April and about 3°C cooler than June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12218
22218
32218
42218
52218
62218
72218
82318
92319
102319
112319
122319
132319
142319
152319
162319
172319
182319
192320
202320
212320
222320
232420
242420
252420
262420
272420
282420
292421
302421
312421

How May really feels in Zarzis

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Zarzis 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
Jan16° / 12°193.3106.1
Feb16° / 12°162.910.86.4
Mar18° / 14°132.211.77.4
Apr20° / 16°81.612.88.2
May23° / 19°30.813.78.9
Jun26° / 22°10.114.29.1
Jul29° / 25°00148.0
Aug30° / 26°10.213.27.2
Sep28° / 25°161.812.27.5
Oct26° / 22°253.711.28.1
Nov21° / 17°243.910.37.9
Dec18° / 13°264.69.86.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 10% of May, with mostly cloudy or overcast conditions the remaining 20%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18218
28119
38119
48119
58119
68119
78119
88119
98020
108020
118020
127921
137822
147921
157822
167822
177822
187822
197822
207921
217921
227921
237921
248119
258119
268119
278218
288317
298416
308515
318515

Chance of precipitation in May

Any precipitation

Zarzis gets around 3 mm of rain over 0.8 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 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
13
23
33
42
52
62
72
82
92
102
112
122
132
142
152
162
172
183
193
203
213
223
233
243
253
263
273
283
293
302
312

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13249190
23049200
32949220
42749240
52649250
62448271
72348291
82247301
92147321
102046331
111945351
121844362
131744382
141643392
151542413
161441423
171340444
181238454
191237475
201135496
211033507
22932518
23830539
247295410
257275511
266265513
275245714
284235716
294215718
303195820
313185722

Wind in May

Winds average 20 km/h in May, the windiest month of the year.

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
320breezy
420breezy
520breezy
620breezy
720breezy
820breezy
920breezy
1020breezy
1120breezy
1220breezy
1320breezy
1420breezy
1520breezy
1620breezy
1720breezy
1820breezy
1920breezy
2020breezy
2120breezy
2220breezy
2320breezy
2420breezy
2520breezy
2620breezy
2720breezy
2820breezy
2920breezy
3020breezy
3120breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:33 AM to 5:12 AM, and sunset from 6:52 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:336:52
213.35:326:53
313.45:316:54
413.45:306:55
513.45:296:55
613.55:286:56
713.55:276:57
813.55:266:58
913.55:266:58
1013.65:256:59
1113.65:247:00
1213.65:237:01
1313.75:227:01
1413.75:217:02
1513.75:217:03
1613.75:207:04
1713.85:197:04
1813.85:197:05
1913.85:187:06
2013.85:177:07
2113.85:177:07
2213.95:167:08
2313.95:157:09
2413.95:157:09
2513.95:147:10
2613.95:147:11
2714.05:137:11
2814.05:137:12
2914.05:137:13
3014.05:127:13
3114.05:127:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.09 kWh/m².

For context, solar energy here swings from a low near 2.85 kWh/m² to a high of 7.62 kWh/m² in July across the year — May's 7.09 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
237.1Intense
247.2Intense
257.2Intense
267.2Intense
277.2Intense
287.2Intense
297.3Intense
307.3Intense
317.3Intense
Planning a trip in May

Hazard calendar for Zarzis

In seasonPeak

In May, Zarzis sits inside its dust season. The full year is below, with each hazard's peak months called out.

Zarzis sees seasonal dust haze (April–June), heaviest in April.

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

Is May a good time to visit Zarzis?

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

8.9
Sightseeing
2nd-best month of the year
6.9
Beach & pool
6th-best month of the year

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

What to pack for Zarzis in May

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

In May, Zarzis sees daytime highs around 23°C and nights near 19°C. Pack sun protection. Worth having: light clothes and a windbreaker.

sun protectionlight clothesa windbreaker

Sea temperature near Zarzis in May

The nearest coast averages about 20°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 14 km away) is warmest in August at about 28°C and coldest in February near 15°C.

It's comfortable for a long swim from May 13 to Dec 5 — about 6.8 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar16Cool
Apr18Cool
May20Refreshing
Jun23Refreshing
Jul27Warm
Aug28Tropical
Sep28Warm
Oct25Warm
Nov22Refreshing
Dec19Cool

UV index in Zarzis in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zarzis peaks around June 20 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJun 20UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr6High
May7High
Jun10Extreme
Jul9Very high
Aug9Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Zarzis 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 Zarzis is worst in January — around 33 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (July, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJan 1832 µg/m³Jul 2210 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb28Moderate
Mar29Moderate
Apr27Moderate
May19Moderate
Jun15Moderate
Jul10Good
Aug11Good
Sep14Moderate
Oct19Moderate
Nov24Moderate
Dec25Moderate
Location & terrain

Where is Zarzis?

Zarzis sits at 33.5°N, 11.1°E, 11 m above sea level, in Tunisia. The nearest listed city is Midoun, 36 km away.

DjerbaMedenineMarethTataouine

Topography around Zarzis

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

Within 3 km, the terrain around Zarzis has only modest variations in elevation — a maximum elevation change of 50 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 75 m; within 80 km, significant variations in elevation — a maximum elevation change of 466 m.

The land around Zarzis is covered by artificial surfaces (47%) and water (42%) within 3 km, water (56%) within 16 km, and water (46%) and bare terrain (37%) within 80 km.

3 km
50 m
16 km
75 m
80 km
466 m
grasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Midoun 36 km · El Mgarsa 37 km · Ajim 41 km · Ben Gardane 42 km · Djerba 48 km · Medenine 59 km · Mareth 78 km · Tataouine 89 km

Tunisia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$4,657
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
65%
of population, 2024
Homicide rate
4.7
per 100k, 2020
Road deaths
16.5
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 498
Religion
Muslim 99%

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 Zarzis (33.504°, 11.1121°, elevation 11 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).