Annual mean 12°C · wettest around November · prevailing wind E
Warmest
25.9 °C
Coldest
3.1 °C
Wettest
30%
Windiest
2.4 m/s
Prevailing
E
2.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Postojna over the whole year is 12°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about 0°C. Postojna has no sharply defined rainy season: the chance of rain on a given day runs from 17% in August, the driest month, to 30% in November, the wettest. Winds in Postojna are highest in February, averaging 2.0 m/s (7 km/h), and lightest in June, at 1.7 m/s (6 km/h). The prevailing wind is from the E. The clearest skies in Postojna come in August, when the sky is typically 41% covered; November is the cloudiest month, at 70%.
Month by month Postojna climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
4°C
0°C
1°C
20%
63%
1.9 m/s
0
0
22
February
6°C
2°C
4°C
23%
64%
2.0 m/s
1
0
37
March
9°C
3°C
7°C
20%
57%
2.0 m/s
9
0
55
April
14°C
7°C
12°C
21%
56%
2.0 m/s
38
1
73
May
17°C
12°C
16°C
27%
62%
1.8 m/s
62
9
69
June
23°C
17°C
24°C
19%
46%
1.7 m/s
62
47
36
July
25°C
18°C
26°C
18%
43%
1.7 m/s
49
57
25
August
25°C
18°C
26°C
17%
41%
1.7 m/s
48
56
25
September
20°C
13°C
20°C
25%
51%
1.7 m/s
70
27
55
October
15°C
9°C
15°C
24%
59%
1.7 m/s
55
2
77
November
9°C
5°C
7°C
30%
70%
1.8 m/s
14
0
51
December
5°C
2°C
3°C
25%
66%
1.8 m/s
1
0
28
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Postojna weather by season
Year round, Postojna has days of about 4°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from 0°C to 18°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around November and least likely around August. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Postojna weather in winterDecember to February
High 5°CLow 1°CRain 23%
Winter in Postojna has typical daily highs of about 5°C and lows of about 1°C, with a 23% chance of rain on a given day.
Postojna weather in springMarch to May
High 13°CLow 7°CRain 23%
Spring in Postojna has typical daily highs of about 13°C and lows of about 7°C, with a 23% chance of rain on a given day.
Postojna weather in summerJune to August
High 25°CLow 18°CRain 18%
Summer in Postojna has typical daily highs of about 25°C and lows of about 18°C, with a 18% chance of rain on a given day.
Postojna weather in autumnSeptember to November
High 15°CLow 9°CRain 26%
Autumn in Postojna has typical daily highs of about 15°C and lows of about 9°C, with a 26% chance of rain on a given day.
When is the rainy season in Postojna?
Postojna has no sharply defined rainy season: the chance of rain on a given day runs from 17% in August, the driest month, to 30% in November, the wettest.
What time of year is Postojna windiest?
Winds in Postojna are highest in February, averaging 2.0 m/s (7 km/h), and lightest in June, at 1.7 m/s (6 km/h). The prevailing wind is from the E.
What is the average temperature in Postojna year round?
The average temperature in Postojna over the whole year is 12°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about 0°C.