Weather in Ermoupolis on 18 August 2026
Preliminary outlook for 18 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 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.
+25°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +24°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 65%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 3% |
| 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.) | +18°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 193° ↖ (NW) |
Sunrise
06:39
Duration
13 h 29 min
Sunset
20:08
Moonrise
00:40
Moonset
16:29
Moon phase
Last Quarter
Illumination
29%
+25°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +23°C
Sea temperature: +25°C
Precipitation: 0 mm
Wind: 10 — 12 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +25°C |
| Feels like (avg.) | +27°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 19 m/s | Wind direction (avg.) | 335° ↖ (NNW) |
Sunrise
06:39
Duration
13 h 29 min
Sunset
20:08
Moonrise
19:39
Moonset
04:34
Moon phase
Waxing Gibbous
Illumination
93%
+25°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +24°C
Precipitation: 0 mm
Wind: 7 — 10 m/s
Humidity: 78%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 756 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.) | 14 m/s | Wind direction (avg.) | 310° ↖ (NNW) |
Sunrise
06:38
Duration
13 h 31 min
Sunset
20:09
Moonrise
08:35
Moonset
21:31
Moon phase
Waxing Crescent
Illumination
9%
+26°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +26°C
Precipitation: 0 mm
Wind: 9 — 11 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 1% |
| 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.) | +20°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 18 m/s | Wind direction (avg.) | 340° ↖ (NNW) |
Sunrise
06:38
Duration
13 h 31 min
Sunset
20:09
Moonrise
23:55
Moonset
13:30
Moon phase
Last Quarter
Illumination
54%
+26°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +27°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 322° ↖ (NNW) |
Sunrise
06:39
Duration
13 h 29 min
Sunset
20:08
Moonrise
16:55
Moonset
01:30
Moon phase
Waxing Gibbous
Illumination
69%
+23°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +21°C
Precipitation: 0 mm
Wind: 10 — 11 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +25°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +25°C | Wind chill (avg.) | +23°C |
| Wind gusts (max.) | 16 m/s | Wind direction (avg.) | 339° ↖ (NNW) |
Sunrise
06:39
Duration
13 h 29 min
Sunset
20:08
Moonrise
05:30
Moonset
20:05
Moon phase
New Moon
Illumination
0%
Weather in Ermoupolis on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+26°C
|
+24°C
|
+25°C | 14 h | 6 | 65% | 2 — 3 m/s |
| 2024 |
+26°C
|
+23°C
|
+25°C | 14 h | 6 | 69% | 10 — 12 m/s |
| 2023 |
+27°C
|
+24°C
|
+25°C | 14 h | 7 | 78% | 7 — 10 m/s |
| 2022 |
+27°C
|
+26°C
|
+26°C | 14 h | 7 | 68% | 9 — 11 m/s |
| 2021 |
+27°C
|
+25°C
|
+26°C | 14 h | 7 | 66% | 4 — 6 m/s |
| 2020 |
+24°C
|
+21°C
|
+23°C | 14 h | 6 | 68% | 10 — 11 m/s |