Your December weather guide
MildWeather in Hammamet in December
Hammamet in December suits a mild-weather break, not a hot beach holiday. Average daytime highs are around 16°C, nights fall to about 11°C and the sea sits near 18°C. For a UK traveller, the appeal is time outdoors without summer heat; the catch is cool evenings, some rain and bracing swimming. Go if you are happy with walks, layers and flexible plans rather than relying on afternoons in swimwear.
Long-term climate averages for Hammamet, not a forecast · 1991-2020
Hammamet, month by month
Your snapshot
At a glance
The useful details for Hammamet.
- Average daytime high
- 16.4°C
- 9 in 10 days stay below 19°C
- Average night-time low
- 11.3°C
- coldest 10% of nights: 9°C or lower
- Compared with London
- +8.7°C
- London averages 7.7°C in December
- Sea temperature
- 18.1°C
- year to year: 18°C to 19°C
- Sunshine per day (est.)
- 5.1h
- 54% of 9.5 h of daylight
- Rainy days (1 mm+)
- 7
- 40 mm over the month
- Humidity
- 73%
- Days over 25°C
- 0%
- none over 30°C
- Record high 1991-2020
- 25.3°C
- 2010-12-09
- Record low 1991-2020
- 3.6°C
- 1992-12-30
- Flight from London
- ≈ 3 h 6 min
- 1851 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How December compares
December is the 10th warmest month of the year in Hammamet and ranks 65th of 134 destinations we compare for December - see where else is hot in December. Within Tunisia it is 3rd of 3 (Tunisia in December). Against London's average high of 7.7°C in December, Hammamet is 8.7°C warmer by day and 8.6°C warmer at night.
Daytime and night-time in December
The typical December day in Hammamet peaks at 16.4°C, but that is an average: the warmest 10% of days reach 19.1°C or more. Roughly 1 in 1000 days top 25°C. Nights average 11.3°C; one night in ten drops to 8.5°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest December day here reached 25.3°C (2010-12-09) and the coldest night 3.6°C (1992-12-30).
Rain in December
Some rain (4-8 rainy days): about 7 days with 1 mm or more, 40 mm in total. Year to year it varies a lot - the wettest December was 2003 with 109 mm, the driest 1994 with 6 mm. Humidity averages 73%.
Sea temperature in December
The sea averages 18.1°C - bracing (18-22°c). Depending on the year it ranges from 17.5°C to 18.6°C. For the warmest sea here, come in August (26.7°C).
Sunshine and daylight
Around 5.1 hours of sunshine a day (estimated from cloud cover), 9.5 hours of daylight: the sun rises about 07:22 and sets about 17:03 local time in mid-December. Average cloud cover is 46%.
Is December a good time to visit Hammamet?
December is not the strongest month here: mild days. The best months for Hammamet on our scoring are July, August, June; months averaging 25°C or more: Jun, Jul, Aug, Sep.
Comfortable for walking, less suited to sunbathing
December's temperatures make walking a more dependable plan than lying on the beach. The warmest days can reach around 19°C or more, but that is a pleasant bonus rather than the warmth to pack for. Bring light layers for daytime, plus a jumper and jacket for evenings. The coldest nights fall to around 9°C or below, so do not treat this as a summer wardrobe trip. Midday is the sensible time to aim for sitting outside, with an extra layer ready when it cools. This month suits travellers who prefer mild conditions to heat and do not mind changing plans when the weather feels less inviting.
Leave room for rain and shorter days
Expect about 7 rainy days during December, so an entirely dry stay is not something to count on. A light waterproof and shoes you can comfortably walk in when it is wet are sensible additions. There are about 5.1 hours of sunshine within 9.5 hours of daylight, giving you scope for outdoor time without promising clear skies throughout the day. Put weather-dependent plans into the brighter spells and keep indoor alternatives flexible. With limited daylight, avoid leaving your main walk until late afternoon. December works better if you enjoy making the most of a fair-weather window than if your holiday depends on reliably sunny days.
A little perspective
Hammamet through the year
December is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 15.2°C | 9.8°C | 15.7°C | 5.1 | 39 | 7 | 0% |
| February | 15.4°C | 9.4°C | 14.6°C | 5.8 | 38 | 7 | 0% |
| March | 17.6°C | 10.8°C | 14.7°C | 6.4 | 44 | 7 | 1% |
| April | 19.8°C | 12.8°C | 15.9°C | 7.2 | 37 | 7 | 2% |
| May | 23.5°C | 15.7°C | 18.5°C | 8.7 | 21 | 4 | 26% |
| Junebest | 27.8°C | 19.2°C | 22.0°C | 11.0 | 10 | 2 | 88% |
| Julybest | 30.9°C | 22.0°C | 25.2°C | 12.9 | 2 | 0 | 100% |
| Augustbest | 31.4°C | 23.0°C | 26.7°C | 11.4 | 9 | 2 | 100% |
| September | 28.0°C | 21.4°C | 26.0°C | 7.7 | 44 | 6 | 90% |
| October | 24.4°C | 18.6°C | 23.8°C | 6.1 | 55 | 7 | 42% |
| November | 19.9°C | 14.5°C | 21.0°C | 5.4 | 43 | 7 | 2% |
| DecemberSelected | 16.4°C | 11.3°C | 18.1°C | 5.1 | 40 | 7 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in December
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Hammamet in December FAQs
Plain answers, grounded in the averages.
Is Hammamet hot in December?
Hammamet is mild in December: the average daytime high is 16.4°C and nights average 11.3°C. Roughly 1 in 1000 December days reach 25°C.
Can you swim in the sea in Hammamet in December?
The sea around Hammamet averages 18.1°C in December, which is bracing - fine for a quick dip, cool for long swims. Between 1991 and 2020 it ranged from 18°C to 19°C depending on the year.
How much does it rain in Hammamet in December?
Hammamet sees about 7 rainy days (1 mm or more) and 40 mm of rain in a typical December. The wettest December between 1991 and 2020 was 2003 (109 mm) and the driest was 1994 (6 mm).
How sunny is Hammamet in December?
Hammamet gets around 5.1 hours of sunshine a day in December out of 9.5 hours of daylight (estimated from average cloud cover).
How does Hammamet compare with the UK in December?
Hammamet is on average 8.7°C warmer than London by day in December (16.4°C against 7.7°C).
What is the hottest December on record in Hammamet?
Between 1991 and 2020 the hottest December day in Hammamet reached 25.3°C on 2010-12-09, and the coldest night dropped to 3.6°C on 1992-12-30.
Is the sea warm enough for swimming?
At 18.1°C, the sea is bracing rather than comfortably warm. It may suit you if you already enjoy cooler-water swimming, but it is not a strong reason to book December. If swimming matters, check that your accommodation has a heated pool.
How much warmer is Hammamet than London?
Hammamet's average daytime high is 16.4°C, compared with London's 7.7°C in December - a difference of 8.7°C. That is a useful improvement for spending time outdoors, but it still means mild days rather than summer heat, with layers needed after dark.
Does December make sense for a short break?
It can, especially if you want milder daytime weather without a long flight. The flight from London is about 3 h 6 min. Keep your expectations centred on walks and relaxed outdoor time when conditions allow, rather than guaranteed beach weather.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Hammamet. Sea temperature from the nearest 5 km sea cell, 2.9 km from that point. Sunshine hours are estimated from average cloud cover.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
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C