Sousse
- Day
- 16.7°C
- Sea
- 15.8°C
- Sun
- 5.6h
- Rain days
- 5
Your January weather guide
Tunisia is a good January choice for mild daytime outings, but not for a reliably warm beach holiday. Average temperatures reach 16°C by day and fall to 8°C at night, while the sea sits at 16°C. Sousse is the strongest option if daytime warmth matters most; Hammamet trades cooler afternoons for milder nights. Go for time outdoors with layers and flexible plans, rather than expecting to spend every day in swimwear.
Long-term climate averages, not a forecast · 1991-2020
Tunisia, month by month
Turn up the warmth
Ranked by average daytime high. The full comparison is in the table below.
All 3 places we track in Tunisia, ordered by daytime high.
Scroll sideways for more weather, down for more places. Click a heading to sort.
| # | Destination | ||||||
|---|---|---|---|---|---|---|---|
| 1 | Sousse | 16.7°C | 7.6°C | 15.8°C | 5.6 h | 5 | 3 h 6 min |
| 2 | Port El Kantaoui | 16.4°C | 7.9°C | 15.8°C | 5.6 h | 5 | 3 h 6 min |
| 3 | Hammamet | 15.2°C | 9.8°C | 15.7°C | 5.1 h | 7 | 3 h 6 min |
3 destinations shownClimate averages, not a forecast.
Daytime highs across Tunisia in January run from 15.2°C (Hammamet) to 16.7°C (Sousse). Even in Sousse only 0% of days reach 25°C. Nights average 8.4°C; the coldest 10% of nights in Hammamet fall to 7°C or below.
Expect around 6 rainy days (1 mm or more) in January, with Port El Kantaoui the driest (5 days) and Hammamet the wettest (7 days). The wettest January at Sousse between 1991 and 2020 was 1999 with 129 mm; the driest was 2007 with 3 mm.
The sea averages 15.8°C around Tunisia in January - warmest at Sousse (15.8°C). That is cold for swimming without a wetsuit.
Around 5.4 hours of sunshine a day on average, out of 9.8 hours of daylight (sunshine estimated from cloud cover).
January is the 12th warmest month of the twelve in Tunisia. It is 1.1°C cooler than December and 0.5°C warmer in February. The hottest month here is August (33°C) and the coolest January (16°C).
Based on the averages: proper layers and a jacket - daytime highs average only 16°C; a warm layer for evenings, when it drops to around 8°C; a light waterproof for the odd shower.
Within 1.5°C of Tunisia's January daytime average: La Palma (17°C, sea 20°C), Madeira (17°C, sea 19°C), Albufeira (16°C, sea 16°C), Costa de la Luz (16°C, sea 16°C), Seville (15°C). See the full ranking for January.
Among these destinations, Sousse has the clearest advantage for daytime warmth, averaging 17°C with 5 rainy days. Port El Kantaoui is close behind at 16°C and has the same number of rainy days, so there is little weather reason to favour it over Sousse. Both fall to 8°C at night, making a warm evening layer sensible. Hammamet is cooler by day at 15°C and wetter, with 7 rainy days, but its 10°C nights are milder. Choose Sousse if your priority is comfortable daytime walks; consider Hammamet if you value less chilly evenings and are happy to work around more wet days.
January calls for layers rather than a summer-only suitcase. A light top may suit a mild spell, but bring a jumper, a jacket and something waterproof for changing conditions. Across Tunisia, the average is 6 rainy days, so leave room to shift outdoor plans rather than assuming every day will stay dry. Average daily sunshine of 5.4 hours gives you a reason to plan time outside, without promising clear skies throughout your stay. Put longer walks around the warmer middle of the day and keep an extra layer handy after dark. The main catch is the contrast between mild daytime temperatures and distinctly cool nights.
A little more detail
Plain answers, grounded in the averages.
Sousse is the warmest of the 3 places we track in Tunisia in January with an average high of 16.7°C; Hammamet is the coolest at 15.2°C.
Not really: the warmest sea we track in Tunisia in January is 15.8°C at Sousse, below the 22°C most people find comfortable.
The sea averages 16°C in Sousse, Port El Kantaoui and Hammamet. That is chilly for relaxed swimming, so January is better suited to walks by the water than lingering in it. None of these destinations offers a sea-temperature advantage.
Do not plan around heat. Even Sousse, the warmest destination listed, averages 17°C by day, and its share of days above 25°C is 0%. Mild outdoor weather is a more realistic expectation than hot afternoons.
Tunisia averages 16°C by day compared with London's 7°C, making daytime outings a milder prospect. It is still winter weather rather than summer warmth, though: Tunisia's average night temperature is 8°C, so warm layers remain useful.
ERA5-Land climate reanalysis via Open-Meteo (11 km grid), 1991-2020
Averages computed from daily values at 3 destination points.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather