Weather in Palermo on 18 December 2026
Preliminary outlook for 18 December 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +16°C and nighttime around +11°C, average precipitation 0 mm, wind around 2 m/s, humidity around 77%.
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.
+15°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +14°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 9 h |
| UV index | 5 | Cloud cover (avg.) | 16% |
| Pressure (avg.) | 770 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +16°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 162° ↘ (SE) |
Sunrise
07:17
Duration
9 h 31 min
Sunset
16:48
Moonrise
06:21
Moonset
15:28
Moon phase
Waning Crescent
Illumination
1%
+12°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +11°C
Sea temperature: +16°C
Precipitation: 0 mm
Wind: 1 — 1 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +15°C | Sun hours | 9 h |
| UV index | 4 | Cloud cover (avg.) | 16% |
| Pressure (avg.) | 773 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +16°C |
| Feels like (avg.) | +12°C | Dew point (avg.) | +9°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +12°C |
| Wind gusts (max.) | 2 m/s | Wind direction (avg.) | 166° ↗ (NE) |
Sunrise
07:17
Duration
9 h 31 min
Sunset
16:48
Moonrise
20:05
Moonset
10:09
Moon phase
Waning Gibbous
Illumination
79%
+12°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +10°C
Precipitation: 0 mm
Wind: 1 — 2 m/s
Humidity: 77%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +15°C | Sun hours | 9 h |
| UV index | 4 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 773 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +12°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +12°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 118° ↗ (NE) |
Sunrise
07:17
Duration
9 h 31 min
Sunset
16:48
Moonrise
11:31
Moonset
22:31
Moon phase
Waxing Crescent
Illumination
37%
+14°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +12°C
Precipitation: 0 mm
Wind: 1 — 1 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +17°C | Sun hours | 9 h |
| UV index | 4 | Cloud cover (avg.) | 11% |
| Pressure (avg.) | 769 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 154° ↗ (NE) |
Sunrise
07:17
Duration
9 h 31 min
Sunset
16:48
Moonrise
01:48
Moonset
13:24
Moon phase
Waning Crescent
Illumination
26%
+11°C
Weather archive — for 2021 year
Overcast
Weather archive — for 2021 year
Nighttime: +9°C
Precipitation: 0 mm
Wind: 5 — 7 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +12°C | Sun hours | 6 h |
| UV index | 4 | Cloud cover (avg.) | 57% |
| Pressure (avg.) | 769 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +9°C | Dew point (avg.) | +5°C |
| Heat index (avg.) | +11°C | Wind chill (avg.) | +9°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 17° ↑ (NNE) |
Sunrise
07:17
Duration
9 h 31 min
Sunset
16:48
Moonrise
16:24
Moonset
06:55
Moon phase
Waxing Gibbous
Illumination
97%
+14°C
Weather archive — for 2020 year
Partly Cloudy
Weather archive — for 2020 year
Nighttime: +12°C
Precipitation: 0 mm
Wind: 1 — 1 m/s
Humidity: 77%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +16°C | Sun hours | 6 h |
| UV index | 4 | Cloud cover (avg.) | 44% |
| Pressure (avg.) | 768 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +14°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 136° → (E) |
Sunrise
07:17
Duration
9 h 31 min
Sunset
16:48
Moonrise
10:41
Moonset
20:52
Moon phase
Waxing Crescent
Illumination
20%
Weather in Palermo on 18 December in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+19°C
|
+14°C
|
+15°C | 9 h | 5 | 73% | 2 — 3 m/s |
| 2024 |
+15°C
|
+11°C
|
+12°C | 9 h | 4 | 82% | 1 — 1 m/s |
| 2023 |
+15°C
|
+10°C
|
+12°C | 9 h | 4 | 77% | 1 — 2 m/s |
| 2022 |
+17°C
|
+12°C
|
+14°C | 9 h | 4 | 82% | 1 — 1 m/s |
| 2021 |
+12°C
|
+9°C
|
+11°C | 6 h | 4 | 68% | 5 — 7 m/s |
| 2020 |
+16°C
|
+12°C
|
+14°C | 6 h | 4 | 77% | 1 — 1 m/s |