Zarzis weather in December

In December, Zarzis sees average daytime highs of 18°C and overnight lows near 13°C, with 26 mm of rain across 4.6 wet days and about 9.8 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 17°C by the end. The sky is clear or mostly clear about 64% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 48 min by month's end. Set against the rest of the year, December is Zarzis's 10th-clearest and 3rd-windiest month. For the whole year in context, see Zarzis's year-round climate.

Daytime high
18°
10th warmest
Overnight low
13°
3rd coldest
Rainfall
26 mm
4.6 wet days
Daylight
9 h 48 min
7:18 AM – 5:05 PM
Cloud cover
34%
10th clearest
Wind
20 km/h
3rd windiest
Solar energy
2.85 kWh/m²
Travel score
6.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 19°C in the first days to 17°C by the end.

A typical December day in Zarzis reaches about 18°C in the afternoon and slips back to 13°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 20°C. Set against its neighbours, December runs about 4°C cooler than November and about 2°C warmer than January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11915
21915
31915
41914
51914
61814
71814
81814
91814
101814
111814
121814
131814
141813
151813
161713
171713
181713
191713
201713
211713
221713
231713
241713
251713
261713
271713
281713
291712
301612
311612

How December really feels in Zarzis

Once humidity and wind are folded in, December 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

December 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 December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 22%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17723
27723
37723
47723
57822
67822
77822
87822
97822
107723
117723
127723
137723
147624
157723
167723
177723
187822
197822
207822
217921
227921
237921
247921
257822
267921
277921
288020
297921
308020
318020

Chance of precipitation in December

Any precipitation

Zarzis gets around 26 mm of rain over 4.6 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 15% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
113
213
313
413
513
613
713
813
913
1013
1114
1214
1314
1414
1514
1614
1714
1814
1914
2014
2114
2215
2315
2415
2515
2615
2714
2814
2914
3013
3113

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
183152
284142
385132
487121
587121
688111
789101
89091
99181
109181
119271
129370
139460
149460
159460
169460
179550
189550
199550
209640
219640
229640
239730
249730
259730
269820
279820
289820
299910
309910
319910

Wind in December

Winds average 20 km/h in December.

Across December, daily wind ranges from about 19 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1120light breeze
1220light breeze
1320light breeze
1420light breeze
1520light breeze
1620light breeze
1720light breeze
1820light breeze
1920breezy
2020breezy
2120breezy
2220breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:07 AM to 7:25 AM, and sunset from 5:03 PM to 5:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:075:03
29.97:085:03
39.97:095:03
49.97:105:03
59.97:105:03
69.97:115:03
79.97:125:04
89.87:135:04
99.87:135:04
109.87:145:04
119.87:155:04
129.87:155:04
139.87:165:05
149.87:175:05
159.87:175:05
169.87:185:05
179.87:195:06
189.87:195:06
199.87:205:06
209.87:205:07
219.87:215:07
229.87:215:08
239.87:225:08
249.87:225:09
259.87:235:09
269.87:235:10
279.87:235:10
289.87:245:11
299.87:245:12
309.87:245:12
319.87:255:13

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.85 kWh/m² — the year's lowest.

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 — December's 2.85 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.0Moderate
43.0Moderate
53.0Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.8Moderate
152.8Moderate
162.8Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.8Moderate
222.8Moderate
232.8Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
313.0Moderate
Planning a trip in December

Hazard calendar for Zarzis

In seasonPeak

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

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

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

Is December a good time to visit Zarzis?

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

6.9
Sightseeing
10th-best month of the year
2.0
Beach & pool
10th-best month of the year

December is a reasonable time to visit Zarzis for sightseeing.

What to pack for Zarzis in December

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

In December, Zarzis sees daytime highs around 18°C and nights near 13°C. Worth packing: a windbreaker. About 5 days see rain.

a windbreaker

Sea temperature near Zarzis in December

The nearest coast averages about 19°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. 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 December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December 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
December 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).