When to go · Italy

When to go to Trieste

Twelve months of averages for Trieste, and what they say about when to go.

Photo: Nick Savchenko from Kiev, Ukraine · CC BY-SA 2.0 · Wikimedia Commons

When to go

What the averages say

Mean daily highs and lows and the month's rain, averaged over 2001 to 2020.

On these averages, Trieste has a mean high between 18°C and 32°C and under 150 mm of rain in May to September.

Cold months (a mean high under 10°C): December to February.
The warmest month is July (27°C) and the coolest January (6°C). The wettest is November (123 mm) and the driest July (60 mm); about 1,027 mm of rain falls in a year.

How these sentences are worded

Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.

Trieste: highs, lows and rainHighLowRain

The year at a glance

Mild to warm and dry
Mild to warm, humid or showery
Hot
Cool
Wet
Cold

JanCold
FebCold
MarCool
AprCool
MayMild–warm, mixed
JunMild–warm, mixed
JulMild–warm, mixed
AugMild–warm, mixed
SeptMild–warm, mixed
OctCool
NovCool
DecCold

Month by month

Every month in Trieste

The whole year, with humidity, cloud and the sunlight reaching the ground.

Climate in Trieste by month: mean daily high and low, rain, and what the month is like
Month	High	Low	Rain	Humidity	Cloud	Sunlight (kWh/m²/day)	High in Dubai	What it is like
January	6°C	1°C	68 mm	83%	75%	1.3	23°C	Cold
February	7°C	1°C	82 mm	81%	70%	2.2	24°C	Cold
March	11°C	4°C	72 mm	78%	62%	3.5	27°C	Cool
April	16°C	8°C	69 mm	74%	59%	4.8	31°C	Cool
May	20°C	13°C	89 mm	73%	60%	5.8	35°C	Mild to warm, humid or showery
June	24°C	17°C	74 mm	71%	54%	6.6	37°C	Mild to warm, humid or showery
July	27°C	20°C	60 mm	65%	45%	6.7	39°C	Mild to warm, humid or showery
August	27°C	19°C	79 mm	66%	44%	5.7	39°C	Mild to warm, humid or showery
September	22°C	15°C	113 mm	71%	55%	4.2	37°C	Mild to warm, humid or showery
October	17°C	11°C	102 mm	79%	64%	2.6	34°C	Cool
November	12°C	7°C	123 mm	83%	73%	1.5	29°C	Cool
December	8°C	3°C	96 mm	82%	74%	1.1	25°C	Cold

The Dubai column is Dubai's mean daily high, for comparison.

Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.

When to go nearby

Plan it

Plan a trip to Trieste

Tell us when and who is travelling, and a person puts the flights, the stays and the rest into one quote.

Plan a trip to Trieste More about Trieste When to go

Month

High

Low

Rain

Humidity

Cloud

Sunlight (kWh/m²/day)

High in Dubai

What it is like

January

6°C

1°C

68 mm

83%

75%

1.3

23°C

Cold

February

7°C

1°C

82 mm

81%

70%

2.2

24°C

Cold

March

11°C

4°C

72 mm

78%

62%

3.5

27°C

Cool

April

16°C

8°C

69 mm

74%

59%

4.8

31°C

Cool

May

20°C

13°C

89 mm

73%

60%

5.8

35°C

Mild to warm, humid or showery

June

24°C

17°C

74 mm

71%

54%

6.6

37°C

Mild to warm, humid or showery

July

27°C

20°C

60 mm

65%

45%

6.7

39°C

Mild to warm, humid or showery

August

27°C

19°C

79 mm

66%

44%

5.7

39°C

Mild to warm, humid or showery

September

22°C

15°C

113 mm

71%

55%

4.2

37°C

Mild to warm, humid or showery

October

17°C

11°C

102 mm

79%

64%

2.6

34°C

Cool

November

12°C

7°C

123 mm

83%

73%

1.5

29°C

Cool

December

8°C

3°C

96 mm

82%

74%

1.1

25°C

Cold