Weather in Karystos on 21 August 2026
Preliminary outlook for 21 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +32°C and nighttime around +24°C, average precipitation 0 mm, wind around 4 m/s, humidity around 45%.
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.
+28°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +23°C
Precipitation: 0 mm
Wind: 1 — 3 m/s
Humidity: 47%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 3% |
| 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.) | +15°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 113° ↑ (NNE) |
Sunrise
06:43
Duration
13 h 24 min
Sunset
20:07
Moonrise
04:03
Moonset
19:14
Moon phase
Waning Crescent
Illumination
8%
+26°C
Weather archive — for 2024 year
Cloudy
Weather archive — for 2024 year
Nighttime: +23°C
Sea temperature: +25°C
Precipitation: 0.1 mm
Wind: 2 — 2 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 12 h |
| UV index | 6 | Cloud cover (avg.) | 64% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +25°C |
| Feels like (avg.) | +28°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 272° ↙ (WSW) |
Sunrise
06:43
Duration
13 h 24 min
Sunset
20:07
Moonrise
21:09
Moonset
08:06
Moon phase
Waxing Gibbous
Illumination
85%
+29°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +24°C
Precipitation: 0 mm
Wind: 6 — 9 m/s
Humidity: 35%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 1% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 18 m/s | Wind direction (avg.) | 101° ↑ (NNE) |
Sunrise
06:42
Duration
13 h 26 min
Sunset
20:08
Moonrise
11:30
Moonset
22:38
Moon phase
Waxing Crescent
Illumination
30%
+29°C
Weather archive — for 2022 year
Patchy rain nearby
Weather archive — for 2022 year
Nighttime: +25°C
Precipitation: 0.1 mm
Wind: 2 — 3 m/s
Humidity: 43%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +34°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 24% |
| 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.) | +15°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 86° ↗ (NE) |
Sunrise
06:42
Duration
13 h 26 min
Sunset
20:08
Moonrise
01:12
Moonset
16:45
Moon phase
Last Quarter
Illumination
32%
+26°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 38%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +27°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 237° ↘ (SE) |
Sunrise
06:42
Duration
13 h 25 min
Sunset
20:07
Moonrise
19:49
Moonset
04:46
Moon phase
Waxing Gibbous
Illumination
91%
+27°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: 47%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 14 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.) | +27°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 178° ↑ (NNE) |
Sunrise
06:43
Duration
13 h 24 min
Sunset
20:07
Moonrise
08:48
Moonset
21:46
Moon phase
Waxing Crescent
Illumination
13%
Weather in Karystos on 21 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+33°C
|
+23°C
|
+28°C | 14 h | 7 | 47% | 1 — 3 m/s |
| 2024 |
+30°C
|
+23°C
|
+26°C | 12 h | 6 | 60% | 2 — 2 m/s |
| 2023 |
+33°C
|
+24°C
|
+29°C | 14 h | 7 | 35% | 6 — 9 m/s |
| 2022 |
+34°C
|
+25°C
|
+29°C | 11 h | 7 | 43% | 2 — 3 m/s |
| 2021 |
+31°C
|
+23°C
|
+26°C | 14 h | 7 | 38% | 5 — 6 m/s |
| 2020 |
+30°C
|
+23°C
|
+27°C | 14 h | 7 | 47% | 5 — 6 m/s |