Portorož
May
Weather in Portorož for May 2025
Your guide to Portorož weather in May - trends and predictions
Yellow Wind Warning - See hour by hour.
The forecast for the next days in Portorož predicts temperatures to be around 20 °C, close to the historical average.
In general, the average temperature in Portorož at the beginning of May is 21.9 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 22.1 °C by the end of May.
Portorož experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 177.9 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
8
Dry days
23
Rainy days
0
Snow days
21°/11°
Temperatures
13 km/h
Avg max wind
78 %
Avg humidity
Portorož Weather May
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1   25° | 2 24° | 3 23° | 4  21° | |||
| 5 21° | 6 20° | 7  19° | 8 17° | 9 16° | 10 18° | 11 19° |
| 12 18° | 13 18° | 14 18° | 15  15° | 16 19° | 17 20° | 18 22° |
| 19 22° | 20 22° | 21  22° | 22 20° | 23 21° | 24 21° | 25  22° |
| 26  24° | 27 24° | 28 22° | 29 22° | 30 21° | 31 20° |
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Temperatures trend during May in Portorož
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Sunny | 25° /13° | 0 mm | 1.8 | |
| 2 May | Sunny | 24° /15° | 0 mm | 1.8 | |
| 3 May | Sunny | 23° /14° | 0 mm | 1.5 | |
| 4 May | Patchy rain possible | 21° /13° | 0.2 mm | 1.4 | |
| 5 May | Patchy rain possible | 21° /14° | 2.6 mm | 1.6 | |
| 6 May | Patchy rain possible | 20° /12° | 3.8 mm | 4 | |
| 7 May | Moderate rain | 19° /10° | 12.9 mm | 3 | |
| 8 May | Patchy rain possible | 17° /9° | 4.7 mm | 3 | |
| 9 May | Patchy rain possible | 16° /9° | 2.8 mm | 3 | |
| 10 May | Patchy rain possible | 18° /9° | 0.3 mm | 3 | |
| 11 May | Patchy rain possible | 19° /8° | 0.8 mm | 3 | |
| 12 May | Patchy rain possible | 18° /11° | 3.3 mm | 3 | |
| 13 May | Patchy rain possible | 18° /11° | 2.9 mm | 3 | |
| 14 May | Patchy rain possible | 18° /11° | 4 mm | 3 | |
| 15 May | Light rain | 15° /12° | 6.1 mm | 4 | |
| 16 May | Light rain shower | 19° /13° | 22.9 mm | 4 | |
| 17 May | Patchy rain possible | 20° /11° | 6.2 mm | 5 | |
| 18 May | Patchy rain possible | 22° /10° | 0.6 mm | 5 | |
| 19 May | Patchy light drizzle | 22° /12° | 3 mm | 5 | |
| 20 May | Light rain shower | 22° /14° | 1.8 mm | 5 | |
| 21 May | Moderate or heavy rain shower | 22° /15° | 20.5 mm | 5 | |
| 22 May | Light rain shower | 20° /11° | 7 mm | 5 | |
| 23 May | Light rain shower | 21° /11° | 8 mm | 5 | |
| 24 May | Moderate rain at times | 21° /12° | 4.4 mm | 5 | |
| 25 May | Partly cloudy | 22° /12° | 0 mm | 6 | |
| 26 May | Patchy light rain with thunder | 24° /11° | 1.1 mm | 5 | |
| 27 May | Patchy light rain with thunder | 24° /10° | 3.8 mm | 5 | |
| 28 May | Light rain shower | 22° /13° | 4.5 mm | 5 | |
| 29 May | Patchy rain possible | 22° /13° | 4.2 mm | 5 | |
| 30 May | Light rain shower | 21° /14° | 20.2 mm | 5 | |
| 31 May | Moderate or heavy rain shower | 20° /12° | 27.3 mm | 5 | |
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Important Notice
Our weather forecast for Portorož in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Portorož forecast closer to your planned date for the most up-to-date weather information.
Portorož in May - FAQ
What are the expected maximum and minimum temperatures in Portorož during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Portorož during May?
Significant rainfall exceeding 177.9 mm is expected in Portorož during May, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Portorož during May?
The average wind speed in Portorož during May is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Portorož
Explore the daily rainfall trends and prepare for Portorožs May weather 💧
UV exposure in Portorož during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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