Weather in Saint-Jean-de-Luz on 17 August 2026
Preliminary outlook for 17 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +23°C and nighttime around +18°C, average precipitation 0.6 mm, wind around 3 m/s, humidity around 81%.
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.
+22°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +19°C
Precipitation: 0 mm
Wind: 1 — 2 m/s
Humidity: 80%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 13 h |
| UV index | 6 | Cloud cover (avg.) | 9% |
| Pressure (avg.) | 763 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +23°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +23°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 182° ↑ (NNE) |
Sunrise
07:14
Duration
13 h 52 min
Sunset
21:06
Moonrise
00:21
Moonset
16:34
Moon phase
Last Quarter
Illumination
37%
+20°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +18°C
Sea temperature: +23°C
Precipitation: 0.1 mm
Wind: 2 — 3 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 8 h |
| UV index | 5 | Cloud cover (avg.) | 37% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +23°C |
| Feels like (avg.) | +22°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 261° ← (WNW) |
Sunrise
07:14
Duration
13 h 52 min
Sunset
21:06
Moonrise
20:12
Moonset
03:53
Moon phase
Waxing Gibbous
Illumination
86%
+22°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 83%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +25°C | Sun hours | 14 h |
| UV index | 5 | Cloud cover (avg.) | 36% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +23°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +23°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 205° ↑ (N) |
Sunrise
07:13
Duration
13 h 54 min
Sunset
21:07
Moonrise
08:17
Moonset
22:04
Moon phase
Waxing Crescent
Illumination
1%
+18°C
Weather archive — for 2022 year
Moderate or heavy rain shower
Weather archive — for 2022 year
Nighttime: +17°C
Precipitation: 2.7 mm
Wind: 5 — 7 m/s
Humidity: 85%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 1 h |
| UV index | 4 | Cloud cover (avg.) | 81% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 263° ← (W) |
Sunrise
07:14
Duration
13 h 53 min
Sunset
21:07
Moonrise
Does not rise today
Moonset
13:23
Moon phase
Waning Gibbous
Illumination
61%
+17°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +16°C
Precipitation: 0.7 mm
Wind: 4 — 4 m/s
Humidity: 81%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 8 h |
| UV index | 4 | Cloud cover (avg.) | 75% |
| Pressure (avg.) | 768 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 330° ↖ (NW) |
Sunrise
07:14
Duration
13 h 53 min
Sunset
21:07
Moonrise
16:57
Moonset
01:15
Moon phase
First Quarter
Illumination
61%
+20°C
Weather archive — for 2020 year
Patchy rain nearby
Weather archive — for 2020 year
Nighttime: +17°C
Precipitation: 0.2 mm
Wind: 2 — 3 m/s
Humidity: 75%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 11 h |
| UV index | 5 | Cloud cover (avg.) | 47% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +20°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 209° ↙ (SW) |
Sunrise
07:14
Duration
13 h 52 min
Sunset
21:06
Moonrise
05:00
Moonset
20:32
Moon phase
Waning Crescent
Illumination
1%
Weather in Saint-Jean-de-Luz on 17 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+27°C
|
+19°C
|
+22°C | 13 h | 6 | 80% | 1 — 2 m/s |
| 2024 |
+22°C
|
+18°C
|
+20°C | 8 h | 5 | 83% | 2 — 3 m/s |
| 2023 |
+25°C
|
+19°C
|
+22°C | 14 h | 5 | 83% | 2 — 3 m/s |
| 2022 |
+19°C
|
+17°C
|
+18°C | 1 h | 4 | 85% | 5 — 7 m/s |
| 2021 |
+18°C
|
+16°C
|
+17°C | 8 h | 4 | 81% | 4 — 4 m/s |
| 2020 |
+24°C
|
+17°C
|
+20°C | 11 h | 5 | 75% | 2 — 3 m/s |