Average weather, temperature, rainfall, sunshine hours
The climate of Postojna is
moderately continental, with cold winters and warm summers.
The city is located in the Karst hills, at 530 meters (1,700 feet) above sea level, and 30 km (18 mi) north-east of Trieste.
The
average temperature of the coldest month (January) is of -0.1 °C (32 °F), that of the warmest month (July) is of 19 °C (66 °F). Here are the average temperatures.
Postojna - Average temperatures| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|
| Min (°C) | -4 | -3 | 0 | 3 | 7 | 11 | 12 | 12 | 9 | 6 | 2 | -2 |
|---|
| Max (°C) | 4 | 6 | 10 | 14 | 19 | 23 | 26 | 25 | 20 | 15 | 9 | 4 |
|---|
| Min (°F) | 25 | 27 | 32 | 37 | 45 | 52 | 54 | 54 | 48 | 43 | 36 | 28 |
|---|
| Max (°F) | 39 | 43 | 50 | 57 | 66 | 73 | 79 | 77 | 68 | 59 | 48 | 39 |
|---|
amounts to 1,500 millimeters (59.1 inches) per year: so, it is quite abundant. It ranges from 80 mm (3.1 in) in the driest month (February) to 165 mm (6.5 in) in the wettest (October). Here is the average precipitation.
Postojna - Average precipitation| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|
| Prec.(mm) | 90 | 80 | 105 | 125 | 125 | 140 | 85 | 115 | 155 | 165 | 160 | 150 | 1500 |
|---|
| Prec.(in) | 3.5 | 3.1 | 4.1 | 4.9 | 4.9 | 5.5 | 3.3 | 4.5 | 6.1 | 6.5 | 6.3 | 5.9 | 59.1 |
|---|
| Days | 8 | 7 | 8 | 11 | 11 | 11 | 8 | 9 | 9 | 10 | 11 | 10 | 113 |
|---|
On average, there are around 2,080
sunshine hours per year. Here are the average sunshine hours per day.
Postojna - Sunshine| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|
| Hours | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 9 | 7 | 5 | 3 | 3 |
|---|
Best Time
The
best time to visit Postojna runs from mid-May to mid-September, since it is the warmest and sunniest period of the year. Sometimes, it can be hot in July and August, while in other circumstances, nights can be cool or even a little cold even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket for the evening.