Weather in Istanbul on 31 July 2026
Preliminary outlook for 31 July 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +30°C and nighttime around +24°C, average precipitation 0 mm, wind around 5 m/s, humidity around 61%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+26°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +24°C
Precipitation: 0 mm
Wind: 7 — 9 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 15 h |
| UV index | 7 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +20°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 49° ↗ (NE) |
Sunrise
05:59
Duration
14 h 22 min
Sunset
20:21
Moonrise
12:46
Moonset
23:22
Moon phase
Waxing Crescent
Illumination
36%
+25°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 6 — 8 m/s
Humidity: 54%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 15 h |
| UV index | 7 | Cloud cover (avg.) | 3% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +26°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 48° ↑ (NNE) |
Sunrise
05:59
Duration
14 h 22 min
Sunset
20:21
Moonrise
01:32
Moonset
17:44
Moon phase
Waning Crescent
Illumination
26%
+25°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +21°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 60%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 15 h |
| UV index | 7 | Cloud cover (avg.) | 2% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +26°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 52° ↑ (NNE) |
Sunrise
05:59
Duration
14 h 23 min
Sunset
20:22
Moonrise
19:54
Moonset
03:40
Moon phase
Waxing Gibbous
Illumination
89%
+27°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +24°C
Precipitation: 0 mm
Wind: 6 — 8 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 12 h |
| UV index | 7 | Cloud cover (avg.) | 27% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +21°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 41° ↗ (NE) |
Sunrise
05:59
Duration
14 h 22 min
Sunset
20:21
Moonrise
08:17
Moonset
22:08
Moon phase
Waxing Crescent
Illumination
12%
+29°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +26°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 46%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 15 h |
| UV index | 7 | Cloud cover (avg.) | 5% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 60° ↗ (ENE) |
Sunrise
05:59
Duration
14 h 22 min
Sunset
20:21
Moonrise
No moonrise
Moonset
13:30
Moon phase
Last Quarter
Illumination
51%
+26°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 71%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 15 h |
| UV index | 7 | Cloud cover (avg.) | 6% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +20°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 51° ↗ (NE) |
Sunrise
05:59
Duration
14 h 22 min
Sunset
20:21
Moonrise
18:04
Moonset
02:31
Moon phase
Waxing Gibbous
Illumination
72%
+27°C
Weather archive — for 2019 year
Clear/Sunny
Weather archive — for 2019 year
Nighttime: +24°C
Precipitation: 0 mm
Wind: 2 — 4 m/s
Humidity: 60%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 15 h |
| UV index | 7 | Cloud cover (avg.) | 10% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +27°C | Dew point (avg.) | +20°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 73° ↘ (SE) |
Sunrise
05:59
Duration
14 h 23 min
Sunset
20:22
Moonrise
04:48
Moonset
20:05
Moon phase
New Moon
Illumination
0%
Weather in Istanbul on 31 July in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+29°C
|
+24°C
|
+26°C | 15 h | 7 | 68% | 7 — 9 m/s |
| 2024 |
+28°C
|
+23°C
|
+25°C | 15 h | 7 | 54% | 6 — 8 m/s |
| 2023 |
+29°C
|
+21°C
|
+25°C | 15 h | 7 | 60% | 5 — 6 m/s |
| 2022 |
+31°C
|
+24°C
|
+27°C | 12 h | 7 | 68% | 6 — 8 m/s |
| 2021 |
+32°C
|
+26°C
|
+29°C | 15 h | 7 | 46% | 4 — 6 m/s |
| 2020 |
+29°C
|
+23°C
|
+26°C | 15 h | 7 | 71% | 5 — 6 m/s |
| 2019 |
+30°C
|
+24°C
|
+27°C | 15 h | 7 | 60% | 2 — 4 m/s |