Istanbul Weather in August
August is one of the perfect months to visit Istanbul, with daytime temperatures of 29°C (84°F) and lows of 22°C (72°F) at night. It is also the driest month of the year.
Rainfall in Istanbul in August
The month is known for having the least rain of the year. Make the most of the sunshine and clear skies. Climate statistics over the past 30 years suggest around 5 days of rain, with 24 mm (0.9 in) average for the month. When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Istanbul in August
August in Istanbul is generally perfect, with days reaching 29°C (84°F) and nights settling around 22°C (72°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are mild at around 22°C (72°F), which is comfortable for most people. This is typically the warmest month of the year, so light summer clothing is a good idea.
Sunshine in Istanbul in August
The month enjoys around 288 hours of sunshine, creating mostly sunny days with good weather conditions.
Average water temperature in August
With water at 25°C (77°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August, September and October typically offer the best circumstances for Istanbul.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Turkey, check out our Istanbul's climate page.
Istanbul Temperature in August
Min Temperature
22°C (72°F)
Max Temperature
29°C (84°F)
Water Temperature
25°C (77°F)
Chance of Rain
16%
Precipitation
24 mm (0.9 in)
Rainy days
5 days
Sunshine
288 hours
Percentage Sunshine
66%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Istanbul typically stay consistent throughout August, with daily highs averaging around 29°C (84°F). Nights are warm, with lows typically ranging from 20°C (68°F) to 22°C (72°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Istanbul in August
Browse day-by-day weather records for Istanbul spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Istanbul historical weather extremes in August
The extremes listed below come from historical weather data collected in Istanbul from 1980 through 2025.
- The hottest August day on record in Istanbul reached 38°C (100°F) (August 12, 2002).
- The coldest August day was on August 27, 1999, with a maximum of 20°C (68°F).
- Nighttime temperatures dropped to 13°C (55°F) on August 30, 1981, marking the coldest August night on record.
Best Places in Turkey in August
Find out more about the weather in Turkey and which places have the best travel conditions in this month. See all of Turkey in August →
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What to Wear in Istanbul in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Pack a light rain jacket or compact umbrella for occasional showers. Expect water temperatures of around 25°C (77°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Istanbul in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Turkey, check out our Istanbul's climate page.
Temperature Rainfall Sunshine Water Temp
See the full Istanbul climate overview or explore weather in Turkey.
