Istanbul Veður Spá
Istanbul weather: 21°C, clear. Á klukkustund forecast, 14-day outlook, UV, air quality and the best time til visit.
Risk assessment for Istanbul
Derived from the current forecast window - not an official warning.
Peak gusts of 54 km/h and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 4 mm, 4 mm across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day forecast for Istanbul
Hæst / Lægst; Úrkoma; UV
| Dagur | Aðstæður | Hæst / Lægst | Úrkoma | Vindur | UV |
|---|---|---|---|---|---|
| sun., ágú 23 | ⛅ Skýjað að hluta | 31° / 21° | 0% | 20 km/h | 7 |
| mán., ágú 24 | ⛅ Skýjað að hluta | 30° / 22° | 0% | 23 km/h | 7 |
| þri., ágú 25 | ⛅ Skýjað að hluta | 30° / 23° | 0% | 20 km/h | 7 |
| mið., ágú 26 | ☁️ Skýjað | 29° / 21° | 1% | 22 km/h | 7 |
| fim., ágú 27 | ☁️ Skýjað | 26° / 22° | 8% | 22 km/h | 7 |
| fös., ágú 28 | ⛅ Skýjað að hluta | 27° / 21° | 2% | 21 km/h | 7 |
| lau., ágú 29 | 🌤️ Að mestu heiðskýrt | 30° / 19° | 2% | 7 km/h | 7 |
| sun., ágú 30 | 🌤️ Að mestu heiðskýrt | 33° / 20° | 6% | 9 km/h | 7 |
| mán., ágú 31 | ☀️ Heiðskýrt | 30° / 23° | 8% | 14 km/h | 7 |
| þri., sep 1 | ☀️ Heiðskýrt | 33° / 22° | 6% | 9 km/h | 7 |
| mið., sep 2 | ☀️ Heiðskýrt | 33° / 23° | 2% | 14 km/h | 7 |
| fim., sep 3 | ☀️ Heiðskýrt | 34° / 23° | 0% | 10 km/h | 6 |
| fös., sep 4 | 🌦️ Light drizzle | 28° / 21° | 14% · 4 mm | 17 km/h | 6 |
| lau., sep 5 | ☀️ Heiðskýrt | 26° / 20° | 8% | 20 km/h | 7 |
| sun., sep 6 | ⛅ Skýjað að hluta | 31° / 19° | 26% | 17 km/h | 6 |
| mán., sep 7 | ☀️ Heiðskýrt | -- / -- | 5% | -- | — |
What this means for Istanbul
Today is about average for ágúst. The forecast high of 31°C is in line með the 30°C typical for this month.
Rigning is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in júní til ágúst.
The gap between the warmest and coldest month averages 19°C.
Sjá spá fyrir Istanbul eftir tímabili
Istanbul weather - more answers
Explore Istanbul
Every topic we hold for this place, and the same topic for the places around it.
Veður for related places
Frequently asked questions
Where is Istanbul?
Istanbul is a city in Tyrkland. Its coordinates are 41.0082, 28.9784. It lies in Evrópa.
What is the weather like in Istanbul núna?
It is currently 21°C (70°F) með clear. Raki is 91% and wind is 3 km/h.
When is the best time til visit Istanbul?
júní, júlí and ágúst offer the most comfortable conditions in Istanbul, which has a Mediterranean climate. janúar, febrúar and desember are usually the hardest months for outdoor plans.
What time zone is Istanbul in?
Istanbul observes Europe/Istanbul (UTC+03:00). The local time is 8:53 AM.
How many people live in Istanbul?
Istanbul has a population of approximately 15.6 million.
What is the nearest airport til Istanbul?
The closest airports are Istanbul Airport (IST), 35 km away.
What are the top things til do in Istanbul?
Popular options include Blue Mosque and Hagia Sophia.
What places are in Istanbul?
Istanbul covers 3 places in this atlas, including Blue Mosque, Hagia Sophia and Istanbul Airport.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-world) - coordinates, hierarchy and facts. |
|---|---|
| Spá and observations | Open-Meteo (ECMWF and national models). |
| Loftgæði and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Loftslag averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated ágúst 23, 2026 at 8:53 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
