Zarzis in Summer
In summer (June, July and August), Zarzis sees average daytime highs around 28°C and overnight lows near 25°C, with 2 mm of rain over about 0 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 25°C in early June to 30°C by late August. The sky is clear or mostly clear about 93% of the time across summer, and the air most often feels oppressive.
Summer is Zarzis's 2nd-best season to visit on our travel score. For the whole year in context, see Zarzis's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 2 mm
- 0 wet days
- Avg wind
- 18 km/h
- Travel score
- 8.1
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Zarzis in Summer
Over the season highs climb from about 25°C in early June to 30°C by late August.
A typical summer day in Zarzis reaches about 28°C and drops to 25°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Zarzis
Once humidity and wind are folded in, summer brings about 34 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Zarzis weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 16° / 12° | 19 | 3.3 | 10 | 6.1 |
| Feb | 16° / 12° | 16 | 2.9 | 10.8 | 6.4 |
| Mar | 18° / 14° | 13 | 2.2 | 11.7 | 7.4 |
| Apr | 20° / 16° | 8 | 1.6 | 12.8 | 8.2 |
| May | 23° / 19° | 3 | 0.8 | 13.7 | 8.9 |
| Jun | 26° / 22° | 1 | 0.1 | 14.2 | 9.1 |
| Jul | 29° / 25° | 0 | 0 | 14 | 8.0 |
| Aug | 30° / 26° | 1 | 0.2 | 13.2 | 7.2 |
| Sep | 28° / 25° | 16 | 1.8 | 12.2 | 7.5 |
| Oct | 26° / 22° | 25 | 3.7 | 11.2 | 8.1 |
| Nov | 21° / 17° | 24 | 3.9 | 10.3 | 7.9 |
| Dec | 18° / 13° | 26 | 4.6 | 9.8 | 6.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 93% of the time across summer.
Chance of precipitation in Summer
Zarzis gets around 2 mm of rain over 0 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 18 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 06 min in early June to 12 h 48 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.3 kWh/m².
Hazard calendar for Zarzis
In summer, Zarzis overlaps 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.
Is summer a good time to visit Zarzis?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer 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 Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Zarzis sees daytime highs around 28°C and nights near 25°C. Pack light clothes and sun protection.
Sea temperature near Zarzis in Summer
The nearest coast averages about 26°C across summer — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 16 | 18 | 20 | 23 | 27 | 28 | 28 | 25 | 22 | 19 |
| Comfort | Cool | Bracing | Cool | Cool | Refreshing | Refreshing | Warm | Tropical | Warm | Warm | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Bracing |
| Mar | 16 | Cool |
| Apr | 18 | Cool |
| May | 20 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 27 | Warm |
| Aug | 28 | Tropical |
| Sep | 28 | Warm |
| Oct | 25 | Warm |
| Nov | 22 | Refreshing |
| Dec | 19 | Cool |
UV index in Zarzis in Summer
Clear-sky midday UV across summer averages around 10 (very high — sun protection essential). 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 7 | 6 | 7 | 10 | 9 | 9 | 8 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | High | High | Extreme | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 7 | High |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 10 | Extreme |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Zarzis in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 33 | 28 | 29 | 27 | 19 | 15 | 10 | 11 | 14 | 19 | 24 | 25 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 33 | Moderate |
| Feb | 28 | Moderate |
| Mar | 29 | Moderate |
| Apr | 27 | Moderate |
| May | 19 | Moderate |
| Jun | 15 | Moderate |
| Jul | 10 | Good |
| Aug | 11 | Good |
| Sep | 14 | Moderate |
| Oct | 19 | Moderate |
| Nov | 24 | Moderate |
| Dec | 25 | Moderate |
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.
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.
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
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.