Weather in Oia on 21 August 2026
Preliminary outlook for 21 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +26°C and nighttime around +24°C, average precipitation 0 mm, wind around 7 m/s, humidity around 78%.
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: +25°C
Precipitation: 0 mm
Wind: 7 — 7 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 0% |
| 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.) | +21°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 317° ↖ (NW) |
Sunrise
06:41
Duration
13 h 20 min
Sunset
20:01
Moonrise
04:04
Moonset
19:06
Moon phase
Waning Crescent
Illumination
8%
+25°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +25°C
Sea temperature: +25°C
Precipitation: 0 mm
Wind: 7 — 9 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 12 h |
| UV index | 7 | Cloud cover (avg.) | 4% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +25°C |
| Feels like (avg.) | +29°C | Dew point (avg.) | +22°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 272° ← (W) |
Sunrise
06:41
Duration
13 h 20 min
Sunset
20:01
Moonrise
21:04
Moonset
08:03
Moon phase
Waxing Gibbous
Illumination
85%
+26°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 5 — 7 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 2% |
| 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.) | 320° ↖ (NNW) |
Sunrise
06:40
Duration
13 h 22 min
Sunset
20:02
Moonrise
11:25
Moonset
22:36
Moon phase
Waxing Crescent
Illumination
30%
+26°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 5% |
| Pressure (avg.) | 753 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +23°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 262° ← (W) |
Sunrise
06:41
Duration
13 h 21 min
Sunset
20:02
Moonrise
01:14
Moonset
16:36
Moon phase
Last Quarter
Illumination
32%
+24°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 9 — 9 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +25°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +26°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 15 m/s | Wind direction (avg.) | 335° ↖ (NNW) |
Sunrise
06:41
Duration
13 h 20 min
Sunset
20:01
Moonrise
19:41
Moonset
04:46
Moon phase
Waxing Gibbous
Illumination
91%
+25°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +22°C
Precipitation: 0 mm
Wind: 9 — 12 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +25°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 1% |
| 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.) | 19 m/s | Wind direction (avg.) | 343° ↖ (NNW) |
Sunrise
06:41
Duration
13 h 20 min
Sunset
20:01
Moonrise
08:45
Moonset
21:41
Moon phase
Waxing Crescent
Illumination
13%
Weather in Oia on 21 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+26°C
|
+25°C
|
+26°C | 14 h | 7 | 73% | 7 — 7 m/s |
| 2024 |
+26°C
|
+25°C
|
+25°C | 12 h | 7 | 84% | 7 — 9 m/s |
| 2023 |
+27°C
|
+25°C
|
+26°C | 14 h | 7 | 79% | 5 — 7 m/s |
| 2022 |
+26°C
|
+25°C
|
+26°C | 14 h | 7 | 86% | 5 — 6 m/s |
| 2021 |
+25°C
|
+23°C
|
+24°C | 14 h | 6 | 73% | 9 — 9 m/s |
| 2020 |
+25°C
|
+22°C
|
+25°C | 14 h | 6 | 73% | 9 — 12 m/s |