Zarzis weather in January

In January, Zarzis sees average daytime highs of 16°C and overnight lows near 12°C, with 19 mm of rain across 3.3 wet days and about 10 hours of daylight. It is the 12th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 64% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Zarzis's 9th-clearest and 7th-windiest month. For the whole year in context, see Zarzis's year-round climate.

Daytime high
16°
12th warmest
Overnight low
12°
1st coldest
Rainfall
19 mm
3.3 wet days
Daylight
10 hours
7:25 AM – 5:25 PM
Cloud cover
33%
9th clearest
Wind
19 km/h
7th windiest
Solar energy
3.28 kWh/m²
Travel score
6.1
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical January day in Zarzis reaches about 16°C in the afternoon and slips back to 12°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 18°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11612
21612
31612
41612
51612
61612
71612
81612
91612
101612
111612
121612
131612
141612
151612
161612
171612
181612
191612
201612
211612
221612
231612
241612
251612
261612
271612
281612
291612
301612
311612

How January really feels in Zarzis

Once humidity and wind are folded in, January 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

January 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 January compares with the rest of the year at a glance. January is the 12th-warmest and 4th-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 22%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
28020
38020
48020
58020
68020
78020
87921
97822
107822
117723
127723
137624
147723
157723
167624
177624
187624
197624
207624
217624
227723
237723
247723
257822
267822
277921
287921
297921
308020
318020

Chance of precipitation in January

Any precipitation

Zarzis gets around 19 mm of rain over 3.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 12% and peaks near 13% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
112
212
311
411
511
610
710
810
910
1011
1111
1211
1312
1412
1512
1613
1713
1813
1913
2013
2113
2213
2312
2412
2512
2612
2712
2812
2912
3012
3112

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26982
27982
28982
29982
30982
31982

Wind in January

Winds average 19 km/h in January.

Across January, 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
121breezy
220breezy
320breezy
420breezy
520light breeze
620light breeze
720light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2520light breeze
2620light breeze
2720light breeze
2820light breeze
2920light breeze
3020light breeze
3120light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 48 min at the start of January to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:24 AM to 7:19 AM, and sunset from 5:13 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:245:13
29.87:255:14
39.87:255:15
49.87:255:15
59.87:255:16
69.97:255:17
79.97:255:17
89.97:255:18
99.97:255:19
109.97:255:20
119.97:255:21
129.97:255:22
1310.07:255:22
1410.07:255:23
1510.07:255:24
1610.07:255:25
1710.07:245:26
1810.07:245:27
1910.17:245:28
2010.17:245:29
2110.17:235:30
2210.17:235:30
2310.17:235:31
2410.27:225:32
2510.27:225:33
2610.27:215:34
2710.27:215:35
2810.37:215:36
2910.37:205:37
3010.37:195:38
3110.37:195:39

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.28 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 — January's 3.28 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.0Moderate
43.0Moderate
53.0Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.3Moderate
173.3Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.7Moderate
313.7Moderate
Planning a trip in January

Hazard calendar for Zarzis

In seasonPeak

None of Zarzis's seasonal hazards are active in January. 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 January a good time to visit Zarzis?

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

6.1
Sightseeing
12th-best month of the year
0.7
Beach & pool
12th-best month of the year

January is a reasonable time to visit Zarzis for sightseeing.

What to pack for Zarzis in January

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

In January, Zarzis sees daytime highs around 16°C and nights near 12°C. Worth packing: a warm layer. About 3 days see rain.

a warm layer

Sea temperature near Zarzis in January

The nearest coast averages about 16°C in January — 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 January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 January

GoodModeratePoorUnhealthyVery unhealthy

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