Your August weather guide
HotWeather in Port El Kantaoui in August
August suits a trip to Port El Kantaoui if you want hot days and warm sea swimming, but it is less suited to spending all day out in the heat. Daytime highs average around 34°C, nights stay near 23°C and the sea is about 27°C. This is the resort's warmest month, so the main decision is your tolerance for heat rather than the risk of rain. Plan for shade, unhurried afternoons and warm evenings.
Long-term climate averages for Port el Kantaoui, not a forecast · 1991-2020
Port El Kantaoui, month by month
Your snapshot
At a glance
The useful details for Port el Kantaoui.
- Average daytime high
- 33.8°C
- 9 in 10 days stay below 38°C
- Average night-time low
- 22.7°C
- coldest 10% of nights: 21°C or lower
- Compared with London
- +12.4°C
- London averages 21.4°C in August
- Sea temperature
- 26.8°C
- year to year: 26°C to 28°C
- Sunshine per day (est.)
- 11.4h
- 85% of 13.4 h of daylight
- Rainy days (1 mm+)
- 2
- 9 mm over the month
- Humidity
- 60%
- Days over 25°C
- 100%
- 93% over 30°C
- Record high 1991-2020
- 46.7°C
- 1999-08-08
- Record low 1991-2020
- 17.8°C
- 1997-08-31
- Flight from London
- ≈ 3 h 6 min
- 1902 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 August compares
August is the 1st warmest month of the year in Port El Kantaoui. Within Tunisia it is 2nd of 3 (Tunisia in August). Against London's average high of 21.4°C in August, Port El Kantaoui is 12.4°C warmer by day and 9.2°C warmer at night.
Daytime and night-time in August
The typical August day in Port El Kantaoui peaks at 33.8°C, but that is an average: the warmest 10% of days reach 38.1°C or more. About 100% of days top 25°C and almost every pass 30°C. Nights average 22.7°C; one night in ten drops to 20.8°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest August day here reached 46.7°C (1999-08-08) and the coldest night 17.8°C (1997-08-31).
Rain in August
Dry (3 rainy days or fewer): about 2 days with 1 mm or more, 9 mm in total. Year to year it varies a lot - the wettest August was 2018 with 55 mm, the driest 1991 with 0 mm. Humidity averages 60%.
Sea temperature in August
The sea averages 26.8°C - warm enough to swim (22°c+). Depending on the year it ranges from 26.1°C to 27.8°C. This is the warmest the sea gets here all year.
Sunshine and daylight
Around 11.4 hours of sunshine a day (estimated from cloud cover), 13.4 hours of daylight: the sun rises about 05:36 and sets about 19:08 local time in mid-August. Average cloud cover is 14%.
Is August a good time to visit Port El Kantaoui?
It is a reasonable choice: hot days - though the heat can be intense at midday. The best months for Port El Kantaoui on our scoring are June, May, September; months averaging 25°C or more: May, Jun, Jul, Aug, Sep, Oct.
Expect heat that shapes your day
The heat is dependable: 93% of days reach 30°C, and the hottest 10% reach 38.1°C or more. That makes August a good fit for travellers happy to alternate swimming with time in the shade, rather than stay active throughout the day. Put walks and other outdoor plans earlier in the morning, and leave room for a sheltered break around midday. With humidity averaging 60%, do not assume the dry weather means the heat will always feel comfortable. Pack loose, light clothing, a sun hat and sun protection. Air conditioning is a sensible accommodation priority, as the average night low of 22.7°C offers only limited relief after a hot day.
Warm swimming water and little rain
The sea is a strong reason to choose August. At an average of 26.8°C, it is comfortably warm for swimming, with the given year-to-year range staying between 26°C and 28°C. Rain is unlikely to dominate your plans: there are about 2 rainy days during the month, though that is not a promise of a completely dry stay. Sunshine averages about 11.4 hours a day, giving you plenty of scope to enjoy the water without making midday your main outdoor slot. Light clothing will do most of the work in your suitcase; sun protection deserves more attention than wet-weather kit. This balance suits a swimming-focused holiday better than one built around sustained outdoor activity.
A little perspective
Port El Kantaoui through the year
August 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 | 16.4°C | 7.9°C | 15.8°C | 5.6 | 29 | 5 | 0% |
| February | 17.0°C | 8.0°C | 14.6°C | 6.3 | 24 | 5 | 2% |
| March | 19.6°C | 9.8°C | 14.8°C | 6.9 | 40 | 6 | 8% |
| April | 22.3°C | 12.1°C | 16.1°C | 7.6 | 25 | 6 | 20% |
| Maybest | 26.3°C | 15.4°C | 18.8°C | 8.9 | 17 | 4 | 62% |
| Junebest | 30.4°C | 19.0°C | 22.3°C | 11.1 | 7 | 2 | 95% |
| July | 33.5°C | 21.8°C | 25.4°C | 12.9 | 2 | 0 | 100% |
| AugustSelected | 33.8°C | 22.7°C | 26.8°C | 11.4 | 9 | 2 | 100% |
| Septemberbest | 30.0°C | 21.0°C | 26.1°C | 7.9 | 43 | 5 | 95% |
| October | 26.1°C | 17.6°C | 23.9°C | 6.4 | 44 | 6 | 62% |
| November | 21.2°C | 13.0°C | 21.1°C | 5.8 | 28 | 5 | 11% |
| December | 17.5°C | 9.3°C | 18.1°C | 5.6 | 27 | 5 | 1% |
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 August
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Port El Kantaoui in August FAQs
Plain answers, grounded in the averages.
Is Port El Kantaoui hot in August?
Port El Kantaoui is hot in August: the average daytime high is 33.8°C and nights average 22.7°C. About 100% of August days reach 25°C or more.
Can you swim in the sea in Port El Kantaoui in August?
The sea around Port El Kantaoui averages 26.8°C in August, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 26°C to 28°C depending on the year.
How much does it rain in Port El Kantaoui in August?
Port El Kantaoui sees about 2 rainy days (1 mm or more) and 9 mm of rain in a typical August. The wettest August between 1991 and 2020 was 2018 (55 mm) and the driest was 1991 (0 mm).
How sunny is Port El Kantaoui in August?
Port El Kantaoui gets around 11.4 hours of sunshine a day in August out of 13.4 hours of daylight (estimated from average cloud cover).
How does Port El Kantaoui compare with the UK in August?
Port El Kantaoui is on average 12.4°C warmer than London by day in August (33.8°C against 21.4°C).
What is the hottest August on record in Port El Kantaoui?
Between 1991 and 2020 the hottest August day in Port El Kantaoui reached 46.7°C on 1999-08-08, and the coldest night dropped to 17.8°C on 1997-08-31.
How much hotter is it than London in August?
The average daytime high is 12.4°C above London's August average of 21.4°C. That is a substantial change from a typical UK summer day, so plan for a slower pace and regular shade rather than treating it as simply light-jacket weather.
Is August the best month to go?
August makes sense if heat and warm swimming water are your priorities. For a better overall weather balance, favour June, May or September. August is the warmest month here, so it is not the natural choice if you find strong heat tiring.
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 Port el Kantaoui. Sea temperature from the nearest 5 km sea cell, 2.6 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