MARMARIS GUIDE
Marmaris Weather by Month: Sea Temperature, Rain and the Best Time to Visit
Last updated: 6 November 2026
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Summer in Marmaris is long, hot and almost dry; winter is mild, but most of the year's rain falls in December and January. This guide gives you the official 1991–2020 averages of the Marmaris weather station, sea temperatures from the last ten years, sunrise and sunset times for every month and what each month is best for. If you are planning trips by car, you will find seasonal routes and car hire tips at the end.
At a glance: the Marmaris climate
- Hottest months
- July and August: average 35° by day, 24° at night
- Coolest months
- January and February: 15–16° by day, 7° at night
- Sea temperature
- 28–29° in August, 17–18° in March
- Wettest months
- December and January: about 11 rainy days a month
- For swimming
- June–October
- For sightseeing and walking
- April–May and October–November
Short Answer: When Is the Best Time to Visit Marmaris?
There is no single right month; it depends on what you want to do. The table shows which months suit which plans, based on the official averages.
| What you want | Best months | Why |
|---|---|---|
| Swimming in the sea and the bays | June–October | Sea 23–29°, rain is rare |
| Sightseeing without the heat | April–May, October–November | 21–27° by day, cool evenings by the sea |
| Long day trips by car | May, June, September, October | Long days, midday heat milder than in July–August |
| A quiet town without crowds | November–March | 15–21° by day, but rainy days are frequent |
Pick your dates, see the price
When you choose your dates on the booking screen, the exact price for those dates appears. No credit card is needed for the deposit.
Marmaris Weather by Month: Temperature, Sea and Rain
Air temperatures, rainy days and sunshine hours in the table are the 1991–2020 climate normals of the Turkish State Meteorological Service's Marmaris station (World Meteorological Organization record). Sea temperature is the 2016–2025 average of two separate satellite and model datasets for the open sea south of the bay. The figures are averages; individual days can be hotter or cooler.
| Month | Day / night | Sea | Rainy days | Sunshine |
|---|---|---|---|---|
| January | 15° / 7° | 19–20° | 11 | 4 h |
| February | 16° / 7° | 18° | 10 | 5 h |
| March | 18° / 9° | 17–18° | 7 | 6 h |
| April | 22° / 12° | 18–19° | 6 | 8 h |
| May | 26° / 16° | 20° | 4 | 9 h |
| June | 32° / 21° | 23–25° | 2 | 11 h |
| July | 35° / 24° | 26–28° | 2 | 11 h |
| August | 35° / 24° | 28–29° | 1 | 11 h |
| September | 31° / 21° | 27–28° | 2 | 9 h |
| October | 27° / 17° | 25° | 5 | 7 h |
| November | 21° / 12° | 22–23° | 7 | 5 h |
| December | 17° / 9° | 20–21° | 11 | 4 h |
Day / night: average highest and lowest temperature (°C). Rainy days: days with more than 1 mm of rain. Sunshine: average hours of sunshine per day.
Most of the year's rain falls between November and February: 289 mm on average in December, only 1 mm in August. The highest temperature the station has recorded is 45.5° (August), the lowest −3.4° (February).
Spring (March–May): Green Hills, a Cool Sea
March is still cool and at times wet: 18° by day, 7 rainy days in the month. In April daytime temperatures rise to 22° and the rain eases; in May days reach 26° and rainy days drop to 4. The pine forests and hills are at their greenest in these months.
In spring the sea warms more slowly than the air: 17–18° in March, 18–19° in April, 20° in May. Plenty of people swim at the end of May, but for most the water still feels cool.
- One of the most comfortable times of year for walking, the castle and the bazaar; see our Marmaris Castle and Old Town guide.
- Evenings are cool; bring a jacket until the end of April.
- A good season for long drives: the days get longer and the roads are quieter than in summer.
Summer (June–August): Hot, Dry and Busy
In July and August the daytime average is 35° and the night 24°; it almost never rains and there are 11 hours of sunshine a day. The sea reaches 26–28° in July and 28–29° in August. The afternoon sea breeze takes the edge off the heat on the shore, but in town and in the car the heat is tiring.
- A car parked in the sun heats up very quickly; park in the shade where you can and open the doors to let the air out before getting in.
- Never leave a child or an animal alone in the car, not even for a minute.
- Carry water on long drives; in the midday heat (12:00–16:00) plan a drive or the beach rather than a walk.
- On hot, windy summer days forest fires can break out in Muğla. Do not throw cigarettes out of the window or light fires in wooded areas; if you see smoke, call 112 and follow the officials' directions on closed roads.
- July and August are the busiest months; set off early in the morning to find space in the bays and car parks.
Autumn (September–November): The Sea Is Still Warm
September feels like more summer: 31° by day, the sea at 27–28°, rain is rare. In October days drop to 27° and the sea stays around 25°; the first rains come in October, about 5 rainy days in the month. In November it is 21° by day and the sea 22–23°, but rainy days rise to 7.
In autumn the sea cools more slowly than the air, so in October you can swim at midday after a cool morning. October is a good balance for those who want both to swim and to explore by car.
Winter (December–February): Mild but Wet
Winter in Marmaris is mild: 17° by day in December, 15° in January, 7–9° at night. But it is the wettest time of year; in December and January it rains on about 11 days a month, and the rain is often short but heavy. On sunny winter days walks along the seafront and trips to the villages are a real pleasure.
- Some seasonal businesses, boat trips and hotels close in winter; check the place you want to visit before you go.
- Roads get slippery with the first rains; slow down on winding mountain roads and leave a longer gap.
- On the higher stretches towards Muğla the road can be icy on winter mornings; take care early in the day.
- Days are short: in December the sun sets around 17:50. Plan long trips so you are back before dark.
Marmaris Sea Temperature: When Can You Swim?
The sea is warmest in August (28–29°) and coolest in March (17–18°). For most people comfortable swimming starts in June and lasts until the end of October.
- June: 23–25°. The start of the season; early in the month the water can still feel cool.
- July–August: 26–29°. The warmest water of the year.
- September: 27–28°. The sea is as warm as in August, the air a little milder.
- October: around 25°. Still good for swimming; the evenings get cool.
- November: 22–23°. Hardier swimmers go in on sunny days.
- December–May: 17–21°. Cold for most people.
We describe the sea in each bay in our Marmaris bays and beaches guide.
Open Marmaris Bay on the mapSunrise, Sunset and Day Length
When you plan trips by car, daylight matters as much as the weather. In June and July the day lasts more than 14.5 hours, in December and January less than 10 hours. Times are for the 15th of each month in Turkish time (the same all year).
| Month | Sunrise | Sunset |
|---|---|---|
| January | 08:20 | 18:10 |
| February | 07:55 | 18:45 |
| March | 07:20 | 19:15 |
| April | 06:35 | 19:40 |
| May | 06:00 | 20:05 |
| June | 05:45 | 20:25 |
| July | 06:00 | 20:25 |
| August | 06:25 | 20:00 |
| September | 06:50 | 19:15 |
| October | 07:15 | 18:30 |
| November | 07:45 | 18:00 |
| December | 08:10 | 17:50 |
To watch the sunset, the seafront and the castle area are good in town; by car, try the viewpoints in our Bozburun Peninsula guide. On turtle nesting beaches such as İztuzu, entry is not allowed from 20:00 to 08:00 between 1 May and the end of September; details in our Dalyan guide.
Trips by Car for Each Season
- Summer: leave early for the bays and spend the midday heat in the sea. Close options are İçmeler and Turunç; for quieter bays further away see our Bozburun Peninsula guide.
- Spring and autumn: the best time for longer drives. Datça, Dalyan and the Kaş–Antalya route are easier these months without the midday heat.
- Winter: choose nearby trips that fit the short days; the Akyaka and Azmak side in our Akyaka and Cleopatra Island guide and things to do in Marmaris are a good start.
- Any season: for speed limits, HGS tolls, fuel and parking rules see our guide to driving in Turkey.
Car Hire Tips for Each Season
Distances and times are approximate and vary with traffic and season.
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Frequently asked questions
What is the best month to visit Marmaris?
June–October for swimming, April–May and October–November for sightseeing without the heat. For both swimming and exploring, September and October are a good balance.
How warm is the sea in Marmaris?
On average 28–29° in August, 26–28° in July, 23–25° in June, around 25° in October and 17–18° in March. In bays close to the shore the water can be a little cooler in spring and autumn.
When can you swim in the sea in Marmaris?
For most people from June to the end of October. Hardier swimmers also go in on sunny days at the end of May and in November.
What is the weather like in Marmaris in October?
An average of 27° by day and 17° at night; the sea is around 25°. The first rains come in October, about 5 rainy days in the month. It is a good month for swimming and sightseeing.
What is the weather like in Marmaris in May, can you swim?
An average of 26° by day, 16° at night and 4 rainy days. The sea is around 20°; some swim at the end of the month, but for most it is cool.
What is the hottest month in Marmaris?
July and August. In both the daytime average is 35° and the night 24°. The highest temperature the station has recorded is 45.5° (August).
What is Marmaris like in winter?
Mild but wet: 17° by day in December, 15° in January, 7–9° at night. In December and January it rains on about 11 days a month; average rainfall in December is 289 mm.
Does it snow in Marmaris?
Snow in town is very rare; the lowest temperature the station has recorded is −3.4°. On the higher stretches towards Muğla the road can be icy on winter mornings.
Which month has the most rain in Marmaris?
December (289 mm on average) and January (256 mm). The summer months are almost dry; average rainfall in August is 1 mm.
What time is sunset in Marmaris?
Around 20:25 in June and July, around 17:50 in December. The times for every month are in the daylight table in this guide.
Can you hire a car in Marmaris in winter?
Yes, we rent all year and deliver cars every day between 08:00 and 00:00. When you choose your dates, the exact price for them appears on the booking screen.
What should you watch out for with a hire car in summer?
Park in the shade where you can, never leave a child or an animal inside, and carry water on long drives. Because of the forest fire risk, do not throw cigarettes out of the window; if you see smoke, call 112.
