Tunis weather, month by month

Tunis sits on a straightforward Mediterranean climate pattern, mild wet winters, hot dry summers, but the specifics matter more than the general description once you’re actually planning which weeks to book. A trip shifted by even three or four weeks can land in a noticeably different weather window, particularly around the spring and autumn transitions. This page works through every month in turn, with the kind of specific detail, typical highs, rainy days, sea temperature, that a general seasonal overview tends to skip past.

Coldest month	January, typically 12–15°C by day
Hottest month	August, typically 32–38°C by day
Wettest months	December and January
Driest months	July and August, close to no rain
Warmest sea	August and September

The year at a glance

Month	Avg. daytime high	Avg. rainy days	Sea temperature	Overall character
January	12–15°C	9–12	Cold	Coolest, quietest, cheapest
February	13–16°C	7–10	Cold	Still quiet, slowly warming
March	15–19°C	6–9	Cold	Changeable, spring beginning
April	18–22°C	4–6	Cool	Mild, green, comfortable
May	21–26°C	2–4	Cool, warming	Reliably sunny, still comfortable
June	26–31°C	1–2	Warm	Warm, building toward summer
July	30–36°C	0–1	Warm	Hot, dry, peak coastal season
August	32–38°C	0–1	Warm	Hottest, busiest, most humid
September	27–32°C	2–4	Warm	Still hot, thinning crowds
October	22–27°C	4–6	Warm, cooling	Comfortable, strong sea
November	17–21°C	6–9	Cool	Cooling fast, more rain
December	14–17°C	8–11	Cold	Mild by day, wet spells, quiet

January and February: the coolest months

January is the coldest month of the year in Tunis, though “cold” here means daytime highs typically in the low-to-mid teens Celsius rather than anything close to a European winter; overnight lows occasionally dip into single figures but frost is rare. It’s also the wettest stretch of the year alongside December, with rain arriving in bursts of a few days rather than settling in continuously. February follows a similar pattern with a very slight warming trend by the second half of the month. Both months are covered in more depth, including what they’re actually good for, in Tunis in winter.

March, April, May: spring’s steady warm-up

March is the most changeable month of the year, capable of a cool, showery week followed immediately by several days of clear, mild sunshine, and it’s worth packing for both possibilities rather than assuming one or the other. April brings a marked improvement, rainfall drops off, temperatures climb into a genuinely comfortable range, and the countryside around inland Roman sites turns green with wildflowers. May continues the warming trend into reliably sunny, dry conditions, though the sea is still cool for most swimmers at this point. Tunis in spring covers this three-month stretch in full detail.

A tour combining the medina, the Carthage amphitheatre and Sidi Bou Said works well across any of these three months, since none of the stops demand heavy shade planning the way they would by midsummer.

June, July, August: the hot, dry summer

June is genuinely the mildest of the three summer months, warm rather than intensely hot, and a reasonable compromise for anyone wanting summer conditions without July and August’s more extreme temperatures and crowding. July and August are Tunis’s hottest, driest months by a clear margin, daytime highs regularly into the mid-to-high thirties Celsius, with essentially no rainfall across either month. It’s also when the coast is at its busiest, driven by European summer holiday demand. Tunis in summer covers how to manage the heat if this is the only window that fits your schedule.

A full-day tour of Tunis’s must-see highlights is worth booking with an early start specifically requested during these three months, since a midday departure in July or August makes for a considerably more demanding day than the same itinerary run from 8am.

September, October, November: cooling back down

September holds onto much of summer’s heat in its first half before easing through the month, and it’s the single warmest month for sea swimming, the water having had the entire summer to warm up. October is widely considered one of the strongest all-round months of the year, comfortable temperatures, thinning crowds, a sea that’s often still swimmable. November brings a sharper drop, daytime highs down into the high teens, and rainfall becoming more frequent as the year turns toward winter. Tunis in autumn goes through all three months in detail.

A day trip to Kesra and Makthar with lunch included suits September or October particularly well, comfortable temperatures for a full day inland without the heat concerns of high summer.

December: closing the year, mild but wet

December opens with conditions similar to a mild late autumn, daytime highs typically in the mid-teens Celsius, before the Christmas and New Year fortnight brings a temporary spike in visitor numbers and prices along the coast. Outside that specific window, December is a quiet, comparatively affordable month, with rain a regular feature but rarely disruptive for more than a day or two at a stretch.

Rainfall patterns across the year

Rain in Tunis concentrates heavily in the cooler months, roughly November through March, and is close to absent from June through August. Even in the wettest months, though, prolonged multi-day washouts are uncommon; the more typical pattern is a wet day or two followed by a clear spell. This matters for packing decisions: a compact rain jacket earns its place in a bag from October through April, while a summer trip can reasonably leave it behind.

Rainfall level	Months
Wettest	December, January
Moderate	February, March, November
Light	April, October
Minimal	May, June, September
Essentially none	July, August

Sea temperature across the year

The sea lags noticeably behind air temperature, staying cold well into late spring and remaining warm well after air temperatures have started cooling in autumn. Swimming season, for most visitors’ comfort levels, effectively runs from June through October, peaking in August and September when the water is warmest.

An overnight trip from Tunis to Kairouan, El Jem, Monastir and Sousse is worth timing for spring or autumn rather than deep summer or winter, since it involves a good deal of walking at exposed sites like the El Djem amphitheatre.

Matching the weather to specific plans

A weather table only helps once it’s applied to what you actually intend to do. Beach-first trips should aim squarely at June through September, when both air and sea temperatures cooperate; the best beaches near Tunis covers where the warmest, most sheltered stretches of coast actually are. Roman-site itineraries built around Dougga or similarly exposed sites do best avoiding the June-to-August window entirely, since the open, largely shadeless walking routes at these sites become genuinely tiring once daytime highs push past the low thirties.

A Sahara extension needs its own separate check beyond this page’s Tunis-focused figures; the Sahara in summer covers why the desert’s own calendar, hottest in July and August, coldest at night in winter, runs quite differently from the coast. The best-time planning tool is worth using alongside this page if you’re weighing a specific date range against a specific set of priorities rather than reading through every month by hand.

Choosing a month based on what matters to you

If a specific priority, beach time, budget, quiet sightseeing, comfortable Roman-site walking, matters more than a generic “best season” recommendation, working from this month-by-month breakdown against your own priorities tends to give a better answer than a single blanket rule. The best time to visit Tunis distils this into a more direct season-by-season recommendation if you’d rather start there and drill down afterward, and how many days do you need in Tunis? is worth reading alongside this if you’re still shaping the length of the trip as well as its timing.

Mistakes to avoid

Frequently asked questions about Tunis weather

What is the hottest month in Tunis?

August, with daytime highs typically reaching the mid-to-high thirties Celsius and occasional spikes higher during heatwaves.

What is the coldest month in Tunis?

January, with daytime highs typically in the low-to-mid teens Celsius; overnight temperatures occasionally dip into single figures but frost is rare.

When does it rain most in Tunis?

December and January see the most rainfall, though it typically arrives in short spells rather than prolonged multi-day washouts.

What month has the warmest sea for swimming?

August and September, when the Mediterranean has had the full summer to warm up; swimming remains comfortable for many visitors into October.

Is there a dry season in Tunis?

Yes, roughly June through August sees minimal to no rainfall, the driest stretch of the year by a clear margin.

Which month has the best balance of weather and crowds?

October is frequently cited as the strongest all-round month: comfortable temperatures, thinning crowds and a sea that’s often still swimmable.

Does Tunis ever get cold enough for frost or snow?

Frost is rare and brief when it occurs; snow in Tunis itself is essentially unheard of, even in the coldest weeks of January.

How much does the weather vary between the coast and the interior?

The interior runs hotter in summer and can be noticeably cooler at night in winter than the coast, which the sea moderates in both directions.