Trieste weather by month & the best time to visit
🇮🇹 Italy · beach resort · humid subtropical climate
The best time to visit Trieste is July — its sunniest month (Sunshine Score 77/100), with June and May close behind. Trieste averages about 2,292 hours of sunshine a year. Daytime highs around 30°C / 86°F and roughly 81 mm of rain in July.
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- Sun hours / year
- 2,292
- Sunniest month
- July
- Peak score
- 77/100
- Rain / year
- 1,094 mm
- Snow / year
- ≈38 cm
- Midday UV at peak
- 7 (high)
- Sea at warmest
- 28°C / 82°F
- Population
- 216k
- Elevation
- 11 m
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When is the best time to visit Trieste?
For sunshine, the best time to visit Trieste is July, then June and May. The dullest month is January (0/100, 65 mm of rain). The full month-by-month picture is in the table below.
How sunny is Trieste?
Trieste gets a moderate 2,292 hours of sunshine a year. 77 Sunshine Score points separate July (77) from January (0), so the month you pick matters. It ranks #29 of 38 destinations in Italy for annual sunshine, below the national median of 2,538 hours. The year's 1,094 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 6° / 43°F | 0° / 32°F | 65 mm | 1 | 9° / 48°F |
| February | 0 | 8° / 46°F | 1° / 34°F | 76 mm | 1 | 9° / 48°F |
| March | 33 | 13° / 55°F | 4° / 39°F | 77 mm | 3 | 13° / 55°F |
| April | 65 | 18° / 64°F | 8° / 46°F | 75 mm | 4 | 16° / 61°F |
| May | 75 | 22° / 72°F | 13° / 55°F | 95 mm | 5 | 19° / 66°F |
| June | 76 | 27° / 81°F | 17° / 63°F | 86 mm | 6 | 24° / 75°F |
| July | 77 | 30° / 86°F | 19° / 66°F | 81 mm | 7 | 28° / 82°F |
| August | 75 | 30° / 86°F | 19° / 66°F | 95 mm | 6 | 28° / 82°F |
| September | 71 | 24° / 75°F | 14° / 57°F | 116 mm | 4 | 24° / 75°F |
| October | 60 | 18° / 64°F | 10° / 50°F | 111 mm | 2 | 19° / 66°F |
| November | 29 | 13° / 55°F | 6° / 43°F | 121 mm | 1 | 15° / 59°F |
| December | 0 | 8° / 46°F | 2° / 36°F | 96 mm | 1 | 10° / 50°F |
Sea temperature in Trieste by month
The sea off Trieste is warmest in July at around 28°C / 82°F, and coolest in January at 9°C / 48°F. The water sits at a comfortable 21°C or warmer roughly 4 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Trieste on the interactive sunshine globe →
Nearby places for sunshine
- Ljubljana Slovenia · 88 km · best in Jul · 1,951 h sun/yr
- Venice Italy · 94 km · best in Jul · 2,291 h sun/yr
- Rijeka(Omišalj) Croatia · 109 km · best in Jul · 2,004 h sun/yr
- Pula Croatia · 110 km · best in Jul · 2,419 h sun/yr
- Bolzano (BZ) Italy · 180 km · best in Sep · 2,153 h sun/yr
- Graz Austria · 199 km · best in May · 1,953 h sun/yr
Nearest destinations
- Klagenfurt am Wörthersee Austria · 112 km · 1,952 h sun/yr · best in May
Head-to-head
How Trieste compares month by month: Trieste vs Ljubljana · Trieste vs Venice · Trieste vs Rijeka(Omišalj) · Trieste vs Pula · all comparisons
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