Weather in Katerini on 21 August 2026
Preliminary outlook for 21 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +31°C and nighttime around +22°C, average precipitation 0.1 mm, wind around 3 m/s, humidity around 52%.
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.
+25°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +19°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 67%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 2% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +25°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 164° → (ESE) |
Sunrise
06:47
Duration
13 h 31 min
Sunset
20:18
Moonrise
04:03
Moonset
19:29
Moon phase
Waning Crescent
Illumination
8%
+26°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +20°C
Sea temperature: +30°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 13% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +30°C |
| 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.) | 207° ↗ (ENE) |
Sunrise
06:47
Duration
13 h 31 min
Sunset
20:18
Moonrise
21:18
Moonset
08:12
Moon phase
Waxing Gibbous
Illumination
85%
+31°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +27°C
Precipitation: 0 mm
Wind: 3 — 3 m/s
Humidity: 24%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +36°C | Sun hours | 14 h |
| UV index | 8 | Cloud cover (avg.) | 3% |
| Pressure (avg.) | 761 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.) | +31°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 211° → (ESE) |
Sunrise
06:46
Duration
13 h 33 min
Sunset
20:19
Moonrise
11:41
Moonset
22:42
Moon phase
Waxing Crescent
Illumination
30%
+25°C
Weather archive — for 2022 year
Overcast
Weather archive — for 2022 year
Nighttime: +21°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 60%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 39% |
| Pressure (avg.) | 755 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.) | +25°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 226° → (E) |
Sunrise
06:47
Duration
13 h 32 min
Sunset
20:19
Moonrise
01:12
Moonset
17:02
Moon phase
Last Quarter
Illumination
32%
+26°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +22°C
Precipitation: 0.5 mm
Wind: 2 — 3 m/s
Humidity: 56%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 10 h |
| UV index | 6 | Cloud cover (avg.) | 63% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +27°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 168° → (ESE) |
Sunrise
06:47
Duration
13 h 31 min
Sunset
20:18
Moonrise
20:03
Moonset
04:47
Moon phase
Waxing Gibbous
Illumination
91%
+27°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +22°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 42%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 190° ↗ (NE) |
Sunrise
06:47
Duration
13 h 31 min
Sunset
20:18
Moonrise
08:54
Moonset
21:55
Moon phase
Waxing Crescent
Illumination
13%
Weather in Katerini on 21 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+31°C
|
+19°C
|
+25°C | 14 h | 6 | 67% | 3 — 5 m/s |
| 2024 |
+32°C
|
+20°C
|
+26°C | 14 h | 7 | 63% | 3 — 4 m/s |
| 2023 |
+36°C
|
+27°C
|
+31°C | 14 h | 8 | 24% | 3 — 3 m/s |
| 2022 |
+29°C
|
+21°C
|
+25°C | 11 h | 6 | 60% | 3 — 4 m/s |
| 2021 |
+29°C
|
+22°C
|
+26°C | 10 h | 6 | 56% | 2 — 3 m/s |
| 2020 |
+31°C
|
+22°C
|
+27°C | 14 h | 7 | 42% | 2 — 3 m/s |