Weather in Trieste on 15 August 2026
Preliminary outlook for 15 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +32°C and nighttime around +21°C, average precipitation 0 mm, wind around 2 m/s, humidity around 56%.
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.
+28°C
Weather archive — latest year: 2025
Partly Cloudy
Weather archive — latest year: 2025
Nighttime: +22°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 38%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +35°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 10% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 72° ↗ (ENE) |
Sunrise
06:05
Duration
14 h 07 min
Sunset
20:12
Moonrise
22:38
Moonset
13:00
Moon phase
Last Quarter
Illumination
51%
+27°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +21°C
Sea temperature: +25°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 5% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +25°C |
| Feels like (avg.) | +29°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 183° ← (W) |
Sunrise
06:05
Duration
14 h 07 min
Sunset
20:12
Moonrise
17:49
Moonset
00:42
Moon phase
Waxing Gibbous
Illumination
71%
+25°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +20°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 62%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 4% |
| Pressure (avg.) | 763 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.) | +25°C | Wind chill (avg.) | +24°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 180° ← (WNW) |
Sunrise
06:05
Duration
14 h 08 min
Sunset
20:13
Moonrise
04:51
Moonset
20:25
Moon phase
New Moon
Illumination
0%
+24°C
Weather archive — for 2022 year
Partly Cloudy
Weather archive — for 2022 year
Nighttime: +20°C
Precipitation: 0.2 mm
Wind: 2 — 3 m/s
Humidity: 56%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 30% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +24°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +24°C | Wind chill (avg.) | +24°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 144° ← (W) |
Sunrise
06:05
Duration
14 h 08 min
Sunset
20:13
Moonrise
22:09
Moonset
09:47
Moon phase
Waning Gibbous
Illumination
76%
+28°C
Weather archive — for 2021 year
Cloudy
Weather archive — for 2021 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
Humidity: 43%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 9 h |
| UV index | 7 | Cloud cover (avg.) | 55% |
| 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.) | +13°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 134° ← (W) |
Sunrise
06:05
Duration
14 h 08 min
Sunset
20:13
Moonrise
13:28
Moonset
23:32
Moon phase
First Quarter
Illumination
47%
+24°C
Weather archive — for 2020 year
Cloudy
Weather archive — for 2020 year
Nighttime: +20°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 2 h |
| UV index | 5 | Cloud cover (avg.) | 83% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 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.) | 7 m/s | Wind direction (avg.) | 180° ↙ (WSW) |
Sunrise
06:05
Duration
14 h 07 min
Sunset
20:12
Moonrise
01:58
Moonset
18:06
Moon phase
Waning Crescent
Illumination
16%
Weather in Trieste on 15 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+35°C
|
+22°C
|
+28°C | 14 h | 7 | 38% | 3 — 4 m/s |
| 2024 |
+32°C
|
+21°C
|
+27°C | 14 h | 7 | 63% | 2 — 3 m/s |
| 2023 |
+31°C
|
+20°C
|
+25°C | 14 h | 7 | 62% | 2 — 3 m/s |
| 2022 |
+29°C
|
+20°C
|
+24°C | 11 h | 6 | 56% | 2 — 3 m/s |
| 2021 |
+33°C
|
+23°C
|
+28°C | 9 h | 7 | 43% | 2 — 2 m/s |
| 2020 |
+29°C
|
+20°C
|
+24°C | 2 h | 5 | 72% | 2 — 3 m/s |