The best times to visit Piran for ideal weather are

April 16th to October 14th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Piran Travel Info

Weather in Piran


Average temperatures in Piran vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 37th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Piran, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 87°F (30.6°C) with temperatures rarely dropping below 63.9°F (17.7°C) at night.

Piran Temperatures (Fahrenheit)


Piran Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Piran Perceived Temperature (F)


Piran Perceived Temperature (C)



Average Piran Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 49.7 42.5 35.8
Feb 51 42.8 34.6
Mar 58.2 49.1 39.6
Apr 66.5 56.6 46.1
May 73.5 63.9 53.1
Jun 80.7 71.1 59.9
Jul 85.7 75.4 63.5
Aug 85.1 74.3 62.7
Sep 76.8 66.8 56.9
Oct 67.5 58.1 49.1
Nov 58.9 51.1 43.7
Dec 51 43.2 36

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 9.8 5.8 2.1
Feb 10.6 6 1.4
Mar 14.6 9.5 4.2
Apr 19.2 13.7 7.8
May 23.1 17.7 11.7
Jun 27.1 21.7 15.5
Jul 29.8 24.1 17.5
Aug 29.5 23.5 17.1
Sep 24.9 19.3 13.8
Oct 19.7 14.5 9.5
Nov 14.9 10.6 6.5
Dec 10.6 6.2 2.2



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Piran are July, August, and then June. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid August. For example, on the week of August 6th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early November with an average of 2 days of significant precipitation the week of November 5th.

When can you find snow in Piran? Weather stations report moderate or seasonal snow likely to be deepest around March, especially close to early March. The best time to ski (if at all) in Piran is often around around March 5th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Piran.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Piran (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 20% 0 2.2
Feb 20% 1.6 2.8
Mar 17% 3.1 2.7
Apr 18% 0 2.1
May 19% 0 2.9
Jun 15% 0 2.7
Jul 13% 0 3.1
Aug 13% 0 2.2
Sep 16% 0 4.6
Oct 19% 0 3.4
Nov 20% 0 4.5
Dec 20% 1.6 3.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 20 0 5.6
Feb 20 4.1 7.1
Mar 17 7.9 6.9
Apr 18 0 5.3
May 19 0 7.4
Jun 15 0 6.9
Jul 13 0 7.9
Aug 13 0 5.6
Sep 16 0 11.7
Oct 19 0 8.6
Nov 20 0 11.4
Dec 20 4.1 7.9


Humidity and Wind

Piran has some very humid months, with other comfortably humid months. The least humid month is July (53.6% relative humidity), and the most humid month is November (71.4%).

Wind in Piran is usually calm. The windiest month is March, followed by July and February. March’s average wind speed of around 6.3 knots (7.3 MPH or 11.7 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early March where average top sustained speeds reach 13.7 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Piran.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 4.7 Light breeze 10.1 Gentle breeze
Feb 5.7 Light breeze 11.7 Significant breeze
Mar 6.3 Light breeze 12.5 Gentle breeze
Apr 5.6 Light breeze 11.2 Significant breeze
May 5.6 Light breeze 11.4 Gentle breeze
Jun 5.5 Light breeze 11 Significant breeze
Jul 5.9 Light breeze 11.7 Gentle breeze
Aug 5.6 Light breeze 11.3 Significant breeze
Sep 5.7 Light breeze 10.8 Gentle breeze
Oct 5.6 Light breeze 11.1 Significant breeze
Nov 5.3 Light breeze 10.9 Gentle breeze
Dec 5.2 Light breeze 10.7 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 70.8%
Feb 61.8%
Mar 56.3%
Apr 57.7%
May 58.3%
Jun 57.6%
Jul 53.6%
Aug 56.3%
Sep 59.9%
Oct 66.7%
Nov 71.4%
Dec 70.7%


Is it Safe to Travel to Piran?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Slovenia; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Piran, Slovenia is June, followed by April and July. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Piran in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 48.6 in November means 48.6% of the tourists vs. June.



Overall Piran Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 76.8°F (24.9°C) and 55.3°F (12.9°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 6 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with about 4 days of precipitation per month. June – August is the busiest season for tourism in Piran, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 79.9°F (26.6°C) and 54.7°F (12.6°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 5 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Piran to be enjoyable for warm weather travelers. The average high during this season is between 55.6°F (13.1°C) and 48.3°F (9.1°C). On average, it rains or snows a fair amount: consistently 6 times per month. These times of year are fairly slow with tourists.


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