Weather Forecast for Piran

Bohinj, Slovenia

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Partly Cloudy

Current Weather - Piran: 30°C

Bohinj, Slovenia

Partly Cloudy

Feels like 30°C

Wind

7 km/h WSW

Humidity

46%

Pressure

1011 mb

UV Index

1

Visibility

10 km

Overcast

Overcast

Wednesday, August 19, 2026

High

31°C

Low

20°C

Rain Chance

8%

Hourly Forecast

Partly Cloudy 30°C
18:00
Overcast 28°C
19:00
Partly Cloudy 25°C
20:00
Cloudy 23°C
21:00
Overcast 24°C
22:00
Overcast 24°C
23:00
Aug 20

Day Statistics

Maximum Wind

15 km/h

Humidity

57%

Precipitation

0 mm

UV Index

7

Visibility

10 km

Rain Chance

8%

Snow Chance

0%

Sun & Moon

Sunrise

06:11 AM

Sunset

08:07 PM

Moonrise

02:15 PM

Moonset

10:54 PM

Moon Phase

First Quarter

Moon Illumination

48%

Air Quality

PM2.5

7.3

μg/m³

PM10

10.5

μg/m³

NO₂

7.6

μg/m³

O₃

91.5

μg/m³

SO₂

0.6

μg/m³

CO

165.2

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

583.98

Diffuse Radiation

96.52

DNI

0

GTI

0

Weather Alerts

Extreme Forestfire danger Warning (Degree 4/4) - Slovenia / South-West

Slovenia / South-West Aug 18, 08:56 AM - Aug 21, 12:59 AM
Severity: Extreme Urgency: Future

There is an extreme risk of forest and bush fire.

Stay very vigilant. Be ready to take action to protect yourself from a rapidly developing fire. The public are asked to exercise extreme caution in the countryside, and immediately notify emergency services on any fire.

Event: Extreme Forestfire danger Warning Certainty: Likely Category: Met

Moderate Thunderstorms Warning (Degree 2/4) - Slovenia / Sea

Slovenia / Sea Aug 18, 03:21 PM - Aug 23, 12:59 AM
Severity: Moderate Urgency: Future

Intense local showers with wind blasts and lightning strikes are possible. Wind and sea state may change quickly.

Beware of approaching storm clouds. Do not linger in exposed locations. If possible, find a more sheltered place, as storms usually do not last long.

Event: Moderate Thunderstorms Warning Certainty: Likely Category: Met

Moderate Thunderstorms Warning (Degree 2/4) - Slovenia / South-West

Slovenia / South-West Aug 18, 03:21 PM - Aug 23, 12:59 AM
Severity: Moderate Urgency: Future

Thunderstorms are possible, accompanied by local intense precipitation and gusty winds. Intense local showers with wind blasts and lightning strikes are possible. Torrential watercourses may rise quickly. Rainwater floods are possible.

Beware of approaching storm clouds. Do not linger in exposed locations, e.g. under trees or power lines. Wait in a safe place, as storms usually do not last long.

Event: Moderate Thunderstorms Warning Certainty: Likely Category: Met

Moderate Rain Warning (Degree 2/4) - Slovenia / South-West

Slovenia / South-West Aug 18, 03:21 PM - Aug 21, 11:59 PM
Severity: Moderate Urgency: Future

Rainfall : from 25 to 50 mm/24h. Watercourses may overflow in areas usually prone to annual floods. Debris may clog certain river culverts.

The population in the affected areas should follow the trend of water level and hydrological updates.

Event: Moderate Rain Warning Certainty: Likely Category: Met

Velebit channel region Aug 18, 06:08 PM - Aug 20, 11:59 PM
Severity: Moderate Urgency: Future

Locally strong SE wind. Maximum wind gusts 35-40 knots (65-75 km/h)

IMPACT: Although rather usual in this region, locally or potentially dangerous wind speeds are expected to produce dangerous wave conditions to small crafts. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. Mariners should pay close attention to the marine forecast and consider wind and sea conditions in planning. It is possible that some ferry lines will not operate so follow traffic information if travelling.

Event: Yellow wind warning Certainty: Possible Category: Met

When to visit Piran?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: June July August

January

☀️
10°C
💧
12 Days of rain
❄️
Moderate snowfall
🥶 Coldest month

February

☀️
10°C
💧
12 Days of rain
❄️
Moderate snowfall

March

☀️
12°C
💧
11 Days of rain
❄️
Moderate snowfall

April

☀️
15°C
💧
11 Days of rain
❄️
No snowfall

May

☀️
20°C
💧
12 Days of rain
❄️
No snowfall

June

☀️
24°C
💧
10 Days of rain
❄️
No snowfall
Best time to visit

July

☀️
27°C
💧
7 Days of rain
❄️
No snowfall
Best time to visit
🌵 Driest month

August

☀️
27°C
💧
11 Days of rain
❄️
No snowfall
Best time to visit
🔥 Hottest month

September

☀️
23°C
💧
21 Days of rain
❄️
No snowfall

October

☀️
19°C
💧
23 Days of rain
❄️
No snowfall

November

☀️
15°C
💧
25 Days of rain
❄️
Light snow possible
🌧 Wettest month,

December

☀️
11°C
💧
17 Days of rain
❄️
Moderate snowfall