Dalaman · Month-by-month climate guide
Dalaman Weather in May
How It Compares with the Rest of the Year
Bars show the daytime high. Click a month to open its page.
What a typical day looks like
Mornings are warm, afternoons hot but dry, and evenings comfortable in a T-shirt by the harbour. The 4 rainy days rarely spoil a holiday. The first days above 30 °C usually arrive at the end of the month.
Can you swim in the sea in May?
At 21 °C the sea is swimmable for most people — a sharp first plunge, then fine, especially in shallow bays in the afternoon. The Ölüdeniz lagoon is a couple of degrees warmer than the open sea.
What to pack
A full summer wardrobe, one light layer for the evening and high-factor sunscreen. The UV index is 9, so shade at midday matters.
What to do in the region in May
Boat trips, the Twelve Islands, Dalyan and İztuzu beach, and diving at Kaş all run at full capacity. Saklıkent gorge can be waded again. The coastal stretches of the Lycian Way are still pleasant in the morning and, unlike in July, walkable at midday.
Flights to Dalaman in May
International services are almost at summer strength, with dozens of UK arrivals a day. Passport queues start to build at the morning and evening peaks.
Who is it for?
The best all-round month for swimming, boat trips and sightseeing, before the crowds reach their peak.
Dalaman Climate Table — All 12 Months
| Month | Day / night | Sea | Rain | Rainy days | Sun/day | UV |
|---|---|---|---|---|---|---|
| January | 15 / 6 °C | 17 °C | 190 mm | 12 | 4.5 h | 3 |
| February | 16 / 6 °C | 16 °C | 145 mm | 10 | 5.5 h | 4 |
| March | 19 / 8 °C | 17 °C | 95 mm | 8 | 6.5 h | 6 |
| April | 23 / 11 °C | 18 °C | 60 mm | 6 | 8 h | 8 |
| May | 28 / 15 °C | 21 °C | 35 mm | 4 | 10 h | 9 |
| June | 33 / 19 °C | 25 °C | 10 mm | 2 | 12 h | 10 |
| July | 36 / 22 °C | 27 °C | 3 mm | 1 | 12.5 h | 11 |
| August | 36 / 22 °C | 28 °C | 4 mm | 1 | 12 h | 10 |
| September | 32 / 18 °C | 27 °C | 15 mm | 2 | 10 h | 8 |
| October | 27 / 14 °C | 24 °C | 70 mm | 5 | 7.5 h | 6 |
| November | 21 / 10 °C | 21 °C | 135 mm | 8 | 5.5 h | 4 |
| December | 16 / 7 °C | 19 °C | 210 mm | 12 | 4 h | 3 |
Source: Turkish State Meteorological Service long-term averages and coastal sea-temperature observations (approximate normals). For information only.
Dalaman Weather in May — Questions
How hot is Dalaman in May?
The average daytime high is 28 °C and the night-time low 15 °C. These are long-term averages; individual days can be a few degrees either side.
Is the sea warm enough to swim in Dalaman in May?
At 21 °C the sea is swimmable for most people — a sharp first plunge, then fine, especially in shallow bays in the afternoon. The Ölüdeniz lagoon is a couple of degrees warmer than the open sea.
Does it rain in Dalaman in May?
The month averages 35 mm of rain over 4 rainy days. Rain usually comes as short showers.
Are there flights to Dalaman in May?
International services are almost at summer strength, with dozens of UK arrivals a day. Passport queues start to build at the morning and evening peaks.
Is May a good time to visit Dalaman?
The best all-round month for swimming, boat trips and sightseeing, before the crowds reach their peak.