Measurements:
°C
°F
Trieste
68°F
NW 2 mph
Feels like: 68°F
Precip: 0%
World Resorts Italy Trieste Weather

7 Day Weather Forecast

05.10
sun
DAY
68°F
NE 6 mph
precip
0%
NIGHT
58°F
N 4 mph
precip
100%
05.11
mon
DAY
64°F
NE 11 mph
precip
100%
NIGHT
56°F
NE 13 mph
precip
100%
05.12
tue
DAY
44°F
SW 19 mph
precip
100%
NIGHT
38°F
SW 6 mph
precip
0%
05.13
wed
DAY
56°F
W 6 mph
precip
0%
NIGHT
44°F
W 2 mph
precip
0%
05.14
thu
DAY
62°F
E 5 mph
precip
0%
NIGHT
48°F
W 4 mph
precip
0%
05.15
fri
DAY
64°F
N 10 mph
precip
100%
NIGHT
54°F
W 5 mph
precip
100%
05.16
sat
DAY
56°F
W 4 mph
precip
100%
NIGHT
50°F
NW 2 mph
precip
0%

Trieste Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Trieste was 18.1°F. The maximum and minimum values were 15.3°F and 20.9°F respectively.

Trieste on the Weather Map

Best Time to Visit Trieste
The most sunny months:
August 23 days
July 21 days
June 19 days
The most warm months:
August 88.1 °F
July 87.7 °F
June 82.2 °F
Warmest sea temperature:
August 81.5 °F
July 81.2 °F
September 76.4 °F
The most cold months:
January 44.1 °F
December 46.9 °F
February 47.5 °F
The most rainy months:
May 7 days
November 6 days
September 6 days
The most windy months:
February 6 mph
March 6 mph
November 6 mph