14 day weather forecast

Trieste weather August 2026 — 14 day forecast · Italy

30°

clear and sunny · feels like 33°

Updated at
  • Live from Open-Meteo
  • Refreshed several times a day
  • 14 days ahead
  • No tracking · free
Warmest day
Wednesday 9 Sept
35°C
highest maximum
Wettest day
Saturday 29 Aug
3.5 mm
5% chance
Most sunshine
Saturday 5 Sept
12.4 hours
of sunshine
Trend
14 days
Warmer
From ~30° to ~33°

The next 14 days

swipe →
Avg max, 3 days
30.3°C
Coldest night
21°C
Most sunshine
12.4 h
Wind from
the east

Overview table · August 2026

Trieste 14 day forecast, day by day

The table below shows the full 14 day weather forecast for Trieste (Italy): the maximum and minimum temperature, rainfall in millimetres, the chance of rain, humidity, hours of sunshine and the UV index per day. Across the next two weeks the maximum temperature in Trieste averages around 31°C and the minimum around 23°C, with roughly 4 mm of rain in total, 13 dry days and about 169 hours of sunshine.

Last updated:

14 day weather forecast for Trieste (Italy) per day: temperature, rainfall, chance of rain, humidity, sunshine hours and UV index. Updated in August 2026.
DayWeatherMaxMinRainChanceHumiditySunUV
Saturday29 AugThunder30°C24°C3.5 mm5%60%11.7 h6high
Sunday30 AugCloudy32°C24°C0 mm0%48%12 h6high
Monday31 AugMostly sunny29°C22°C0 mm0%64%12.1 h6high
Tuesday1 SeptCloudy29°C23°C0 mm13%54%12.2 h6high
Wednesday2 SeptCloudy29°C23°C0 mm20%57%10.9 h5moderate
Thursday3 SeptCloudy28°C22°C0 mm10%64%12.3 h6high
Friday4 SeptCloudy30°C21°C0 mm5%71%12.2 h6high
Saturday5 SeptSunny31°C21°C0 mm5%60%12.4 h6high
Sunday6 SeptMostly sunny33°C22°C0 mm6%53%12.3 h6high
Monday7 SeptMostly sunny32°C22°C0 mm15%54%12.2 h6high
Tuesday8 SeptSunny33°C23°C0 mm16%50%12.2 h6high
Wednesday9 SeptSunny35°C25°C0 mm15%51%12 h5moderate
Thursday10 SeptSunny34°C24°C0 mm16%51%12 h3moderate
Friday11 SeptMostly sunny32°C24°C0 mm23%55%12 h5moderate

The first three to five days of the forecast for Trieste are the most reliable; from day seven onwards it is an indicative trend. Click a day in the overview above for hourly detail. Source: Open-Meteo (Met Office, DWD, ECMWF).

Background & outlook

The weather in Trieste

Current conditions and the 14 day forecast

Trieste lies in Italy, an area with a Mediterranean climate: hot, near rainless summers, mild winters, and most of the year's rain arriving between autumn and spring. That is exactly why a two-week outlook is useful here — it shows the pattern rather than one snapshot.

What is the weather like in Trieste right now?

It is currently 30°C in Trieste with clear and sunny. It feels like 33°C, humidity is 48% and the wind is W 8 km/h.

Today (Saturday) reaches a maximum of 30°C and a minimum of 24°C, with 3.5 mm of rain and 11.7 hours of sunshine. Sunrise is at 06:22 and sunset at 19:49.

Trieste weather tomorrow

Tomorrow (Sunday) the maximum temperature in Trieste is 32°C and the minimum 24°C. Around 0 mm of rain is expected with 12 hours of sunshine, and the chance of rain is 0%. The data is refreshed several times a day through Open-Meteo.

Trieste weather this week and next week

Over the coming week the average maximum temperature in Trieste sits around 30°C and the average minimum around 23°C. Roughly 3.5 mm of rain is expected, spread across 1 day, with 1 largely sunny day.

The warmest day in the 14 day forecast for Trieste is Wednesday 9 Sept at 35°C. The coldest night falls on Friday 4 Sept at 21°C. Click any day for hourly detail.

Rain, sunshine and UV in Trieste

A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Trieste is 6 — high enough to warrant sun protection in the middle of the day.

How reliable is a 14 day forecast?

The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.

Forecast for Trieste last updated: 29 August 2026 at 14:24. See also all Italy forecasts and the European weather map.

Frequently asked questions

Questions about the weather in Trieste

What is the weather like in Trieste in August 2026?

The forecast at the top of this page shows the current temperature in Trieste plus the maximum and minimum for each of the next 14 days, with rainfall, chance of rain, sunshine hours and UV index. It is refreshed several times a day.

How accurate is the 14 day forecast for Trieste?

The first three to five days for Trieste are highly reliable. From day six onwards, read the forecast as a trend: it shows whether it turns warmer, cooler, wetter or drier rather than an exact value for that day.

Will it rain in Trieste this week?

The rainfall chart on this page gives the expected millimetres per day for Trieste, and each day card shows the chance of rain as a percentage. Below 20% with several hours of sunshine is a genuinely dry day.

How warm does it get in Trieste over the next two weeks?

The temperature chart shows the maximum and minimum for every one of the next 14 days in Trieste. The overview table underneath repeats the same figures day by day, together with the average across the fortnight.

Can I see the weather in Trieste hour by hour?

Yes. The hourly chart covers the next 48 hours in Trieste with temperature, feels-like temperature and chance of rain. Clicking any of the 14 days opens a panel with night, morning, afternoon and evening detail.

Where does the Trieste forecast come from?

The data for Trieste (Italy, Italy) comes from Open-Meteo, which combines national weather models such as those of the Met Office, DWD, Météo-France and ECMWF and recomputes them several times a day.

What does the UV index for Trieste mean?

The UV index runs from 0 to 11+. Up to 2 is low, 3 to 5 moderate, 6 to 7 high and 8 or more very high. From 6 upwards it is worth using sun protection in the middle of the day, even when it does not feel especially hot.

Is the Trieste weather forecast free?

Yes. The full 14 day forecast for Trieste is free, needs no account and carries no adverts inside the charts.