Weather in Riyadh on 17 August 2026
Preliminary outlook for 17 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +43°C and nighttime around +30°C, average precipitation 0 mm, wind around 4 m/s, humidity around 12%.
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.
+37°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +31°C
Precipitation: 0 mm
Wind: 7 — 8 m/s
Humidity: 9%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +43°C | Sun hours | 13 h |
| UV index | 9 | Cloud cover (avg.) | 3% |
| Pressure (avg.) | 751 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +36°C | Dew point (avg.) | −2°C |
| Heat index (avg.) | +36°C | Wind chill (avg.) | +37°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 181° ↑ (NNE) |
Sunrise
05:28
Duration
12 h 57 min
Sunset
18:25
Moonrise
No moonrise
Moonset
13:37
Moon phase
Last Quarter
Illumination
37%
+39°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +33°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 10%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +45°C | Sun hours | 13 h |
| UV index | 9 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 749 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +38°C | Dew point (avg.) | +2°C |
| Heat index (avg.) | +38°C | Wind chill (avg.) | +39°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 79° → (E) |
Sunrise
05:29
Duration
12 h 56 min
Sunset
18:25
Moonrise
16:52
Moonset
02:30
Moon phase
Waxing Gibbous
Illumination
86%
+37°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +30°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 17%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +43°C | Sun hours | 13 h |
| UV index | 9 | Cloud cover (avg.) | 3% |
| Pressure (avg.) | 752 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +37°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +37°C | Wind chill (avg.) | +37°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 121° ↘ (SE) |
Sunrise
05:28
Duration
12 h 58 min
Sunset
18:26
Moonrise
06:07
Moonset
19:18
Moon phase
Waxing Crescent
Illumination
1%
+38°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +31°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 11%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +44°C | Sun hours | 13 h |
| UV index | 9 | Cloud cover (avg.) | 5% |
| Pressure (avg.) | 750 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +37°C | Dew point (avg.) | +2°C |
| Heat index (avg.) | +37°C | Wind chill (avg.) | +38°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 30° ↗ (NE) |
Sunrise
05:28
Duration
12 h 57 min
Sunset
18:25
Moonrise
22:10
Moonset
10:34
Moon phase
Waning Gibbous
Illumination
61%
+36°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +29°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 13%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +42°C | Sun hours | 13 h |
| UV index | 9 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 753 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +35°C | Dew point (avg.) | +4°C |
| Heat index (avg.) | +35°C | Wind chill (avg.) | +36°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 31° ↑ (NNE) |
Sunrise
05:28
Duration
12 h 57 min
Sunset
18:25
Moonrise
14:07
Moonset
00:02
Moon phase
First Quarter
Illumination
61%
+36°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +28°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 13%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +43°C | Sun hours | 13 h |
| UV index | 9 | Cloud cover (avg.) | 2% |
| Pressure (avg.) | 751 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +34°C | Dew point (avg.) | +2°C |
| Heat index (avg.) | +34°C | Wind chill (avg.) | +35°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 246° ↑ (N) |
Sunrise
05:29
Duration
12 h 56 min
Sunset
18:25
Moonrise
03:23
Moonset
17:22
Moon phase
Waning Crescent
Illumination
1%
+34°C
Weather archive — for 2019 year
Clear/Sunny
Weather archive — for 2019 year
Nighttime: +27°C
Precipitation: 0 mm
Wind: 6 — 8 m/s
Humidity: 11%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +42°C | Sun hours | 13 h |
| UV index | 8 | Cloud cover (avg.) | 1% |
| Pressure (avg.) | 753 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | −2°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +34°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 351° ↑ (N) |
Sunrise
05:28
Duration
12 h 58 min
Sunset
18:26
Moonrise
19:51
Moonset
06:50
Moon phase
Waxing Gibbous
Illumination
86%
Weather in Riyadh on 17 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+43°C
|
+31°C
|
+37°C | 13 h | 9 | 9% | 7 — 8 m/s |
| 2024 |
+45°C
|
+33°C
|
+39°C | 13 h | 9 | 10% | 4 — 6 m/s |
| 2023 |
+43°C
|
+30°C
|
+37°C | 13 h | 9 | 17% | 4 — 5 m/s |
| 2022 |
+44°C
|
+31°C
|
+38°C | 13 h | 9 | 11% | 4 — 5 m/s |
| 2021 |
+42°C
|
+29°C
|
+36°C | 13 h | 9 | 13% | 2 — 3 m/s |
| 2020 |
+43°C
|
+28°C
|
+36°C | 13 h | 9 | 13% | 3 — 5 m/s |
| 2019 |
+42°C
|
+27°C
|
+34°C | 13 h | 8 | 11% | 6 — 8 m/s |