Weather in Sperlonga on 18 August 2026
Preliminary outlook for 18 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +29°C and nighttime around +23°C, average precipitation 0.1 mm, wind around 3 m/s, humidity around 67%.
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.
+24°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +21°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 61%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 13 h |
| UV index | 6 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +25°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +24°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 190° ↓ (SSW) |
Sunrise
06:19
Duration
13 h 42 min
Sunset
20:01
Moonrise
00:12
Moonset
16:34
Moon phase
Last Quarter
Illumination
29%
+26°C
Weather archive — for 2024 year
Patchy rain nearby
Weather archive — for 2024 year
Nighttime: +24°C
Sea temperature: +27°C
Precipitation: 0.1 mm
Wind: 3 — 4 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 9 h |
| UV index | 7 | Cloud cover (avg.) | 45% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +27°C |
| Feels like (avg.) | +28°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 283° ↙ (SW) |
Sunrise
06:19
Duration
13 h 41 min
Sunset
20:00
Moonrise
19:37
Moonset
04:09
Moon phase
Waxing Gibbous
Illumination
93%
+26°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 3 — 3 m/s
Humidity: 62%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 14 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.) | +27°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 212° ↙ (SW) |
Sunrise
06:18
Duration
13 h 43 min
Sunset
20:01
Moonrise
08:20
Moonset
21:20
Moon phase
Waxing Crescent
Illumination
9%
+28°C
Weather archive — for 2022 year
Partly Cloudy
Weather archive — for 2022 year
Nighttime: +26°C
Precipitation: 0 mm
Wind: 4 — 4 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 25% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +21°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 108° ↘ (SE) |
Sunrise
06:18
Duration
13 h 43 min
Sunset
20:01
Moonrise
23:32
Moonset
13:27
Moon phase
Last Quarter
Illumination
54%
+24°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +22°C
Precipitation: 0.3 mm
Wind: 3 — 4 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 10 h |
| UV index | 6 | Cloud cover (avg.) | 44% |
| Pressure (avg.) | 758 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.) | +25°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 224° ↓ (SSW) |
Sunrise
06:18
Duration
13 h 43 min
Sunset
20:01
Moonrise
16:57
Moonset
01:05
Moon phase
Waxing Gibbous
Illumination
69%
+25°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 74%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 12% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +27°C | Dew point (avg.) | +20°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 291° ↙ (WSW) |
Sunrise
06:19
Duration
13 h 41 min
Sunset
20:00
Moonrise
05:07
Moonset
20:01
Moon phase
New Moon
Illumination
0%
Weather in Sperlonga on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+28°C
|
+21°C
|
+24°C | 13 h | 6 | 61% | 2 — 3 m/s |
| 2024 |
+29°C
|
+24°C
|
+26°C | 9 h | 7 | 64% | 3 — 4 m/s |
| 2023 |
+29°C
|
+23°C
|
+26°C | 14 h | 7 | 62% | 3 — 3 m/s |
| 2022 |
+31°C
|
+26°C
|
+28°C | 14 h | 7 | 66% | 4 — 4 m/s |
| 2021 |
+27°C
|
+22°C
|
+24°C | 10 h | 6 | 72% | 3 — 4 m/s |
| 2020 |
+27°C
|
+23°C
|
+25°C | 11 h | 6 | 74% | 3 — 5 m/s |