Weather in Royan on 18 August 2026
Preliminary outlook for 18 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +27°C and nighttime around +16°C, average precipitation 0 mm, wind around 3 m/s, humidity around 69%.
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.
+23°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +17°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 50%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 10 h |
| UV index | 6 | Cloud cover (avg.) | 9% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +24°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +25°C | Wind chill (avg.) | +24°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 180° ↙ (SW) |
Sunrise
07:08
Duration
13 h 59 min
Sunset
21:07
Moonrise
00:52
Moonset
17:56
Moon phase
Last Quarter
Illumination
29%
+18°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +13°C
Sea temperature: +22°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 14 h |
| UV index | 5 | Cloud cover (avg.) | 14% |
| Pressure (avg.) | 763 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +22°C |
| Feels like (avg.) | +19°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 314° ↖ (NW) |
Sunrise
07:08
Duration
13 h 58 min
Sunset
21:06
Moonrise
20:50
Moonset
04:52
Moon phase
Waxing Gibbous
Illumination
93%
+25°C
Weather archive — for 2023 year
Cloudy
Weather archive — for 2023 year
Nighttime: +20°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 63%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +34°C | Sun hours | 9 h |
| UV index | 7 | Cloud cover (avg.) | 52% |
| Pressure (avg.) | 759 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.) | +27°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 257° → (ESE) |
Sunrise
07:08
Duration
14 h 00 min
Sunset
21:08
Moonrise
09:16
Moonset
22:21
Moon phase
Waxing Crescent
Illumination
9%
+20°C
Weather archive — for 2022 year
Patchy rain nearby
Weather archive — for 2022 year
Nighttime: +15°C
Precipitation: 0.1 mm
Wind: 3 — 5 m/s
Humidity: 74%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 10 h |
| UV index | 6 | Cloud cover (avg.) | 51% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 229° ↓ (SSW) |
Sunrise
07:08
Duration
13 h 59 min
Sunset
21:07
Moonrise
Does not rise today
Moonset
14:40
Moon phase
Last Quarter
Illumination
54%
+19°C
Weather archive — for 2021 year
Cloudy
Weather archive — for 2021 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 74%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 14 h |
| UV index | 5 | Cloud cover (avg.) | 30% |
| Pressure (avg.) | 766 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 264° ← (WNW) |
Sunrise
07:08
Duration
13 h 59 min
Sunset
21:07
Moonrise
18:16
Moonset
01:47
Moon phase
Waxing Gibbous
Illumination
69%
+20°C
Weather archive — for 2020 year
Patchy rain nearby
Weather archive — for 2020 year
Nighttime: +17°C
Precipitation: 0.1 mm
Wind: 3 — 4 m/s
Humidity: 83%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 3 h |
| UV index | 5 | Cloud cover (avg.) | 82% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 246° ↙ (WSW) |
Sunrise
07:08
Duration
13 h 58 min
Sunset
21:06
Moonrise
05:54
Moonset
21:12
Moon phase
New Moon
Illumination
0%
Weather in Royan on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+29°C
|
+17°C
|
+23°C | 10 h | 6 | 50% | 3 — 5 m/s |
| 2024 |
+24°C
|
+13°C
|
+18°C | 14 h | 5 | 70% | 4 — 5 m/s |
| 2023 |
+34°C
|
+20°C
|
+25°C | 9 h | 7 | 63% | 3 — 4 m/s |
| 2022 |
+26°C
|
+15°C
|
+20°C | 10 h | 6 | 74% | 3 — 5 m/s |
| 2021 |
+23°C
|
+16°C
|
+19°C | 14 h | 5 | 74% | 3 — 4 m/s |
| 2020 |
+24°C
|
+17°C
|
+20°C | 3 h | 5 | 83% | 3 — 4 m/s |