Weather in Aci Castello on 18 August 2026
Preliminary outlook for 18 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +31°C and nighttime around +25°C, average precipitation 0.6 mm, wind around 2 m/s, humidity around 53%.
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: +23°C
Precipitation: 2 mm
Wind: 2 — 4 m/s
Humidity: 59%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 8 h |
| UV index | 6 | Cloud cover (avg.) | 29% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +26°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 208° → (ESE) |
Sunrise
06:18
Duration
13 h 30 min
Sunset
19:48
Moonrise
00:20
Moonset
16:11
Moon phase
Last Quarter
Illumination
29%
+28°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +26°C
Sea temperature: +30°C
Precipitation: 1.3 mm
Wind: 2 — 3 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 27% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +30°C |
| Feels like (avg.) | +30°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 177° ↘ (SSE) |
Sunrise
06:18
Duration
13 h 29 min
Sunset
19:47
Moonrise
19:19
Moonset
04:14
Moon phase
Waxing Gibbous
Illumination
93%
+28°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +24°C
Precipitation: 0 mm
Wind: 1 — 3 m/s
Humidity: 54%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 13 h |
| UV index | 7 | 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.) | +18°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 219° ↘ (SE) |
Sunrise
06:17
Duration
13 h 31 min
Sunset
19:48
Moonrise
08:16
Moonset
21:11
Moon phase
Waxing Crescent
Illumination
9%
+30°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +27°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 51%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +35°C | Sun hours | 13 h |
| UV index | 8 | Cloud cover (avg.) | 5% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 173° ↘ (SE) |
Sunrise
06:18
Duration
13 h 30 min
Sunset
19:48
Moonrise
23:35
Moonset
13:12
Moon phase
Last Quarter
Illumination
54%
+28°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +25°C
Precipitation: 0.1 mm
Wind: 2 — 3 m/s
Humidity: 54%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 13 h |
| UV index | 7 | Cloud cover (avg.) | 10% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 152° → (ESE) |
Sunrise
06:18
Duration
13 h 30 min
Sunset
19:48
Moonrise
16:36
Moonset
01:10
Moon phase
Waxing Gibbous
Illumination
69%
+29°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +26°C
Precipitation: 0 mm
Wind: 1 — 3 m/s
Humidity: 47%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 13 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.) | +29°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 230° → (ESE) |
Sunrise
06:18
Duration
13 h 30 min
Sunset
19:48
Moonrise
05:10
Moonset
19:45
Moon phase
New Moon
Illumination
0%
Weather in Aci Castello on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+26°C
|
+23°C
|
+25°C | 8 h | 6 | 59% | 2 — 4 m/s |
| 2024 |
+30°C
|
+26°C
|
+28°C | 11 h | 7 | 51% | 2 — 3 m/s |
| 2023 |
+32°C
|
+24°C
|
+28°C | 13 h | 7 | 54% | 1 — 3 m/s |
| 2022 |
+35°C
|
+27°C
|
+30°C | 13 h | 8 | 51% | 2 — 3 m/s |
| 2021 |
+31°C
|
+25°C
|
+28°C | 13 h | 7 | 54% | 2 — 3 m/s |
| 2020 |
+32°C
|
+26°C
|
+29°C | 13 h | 7 | 47% | 1 — 3 m/s |