Istria
May
Weather in Istria for May 2025
Your guide to Istria weather in May - trends and predictions
In general, the average temperature in Istria at the beginning of May is 17.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22 °C by the end of May.
Istria sees moderate rainfall in May, averaging 9 rainy days.
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22
Dry days
9
Rainy days
0
Snow days
20°/14°
Temperatures
23 km/h
Avg max wind
74 %
Avg humidity
Istria in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2 16° | 3  16° | 4  18° | |||
| 5  18° | 6  19° | 7 18° | 8  19° | 9 18° | 10 17° | 11 17° |
| 12  19° | 13 18° | 14 16° | 15 17° | 16 17° | 17 18° | 18 19° |
| 19 19° | 20 20° | 21 22° | 22 21° | 23 21° | 24 21° | 25 22° |
| 26 23° | 27 22° | 28 22° | 29 22° | 30 22° | 31 21° |
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Temperatures trend during May in Istria
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 | Moderate or heavy rain shower | 17° /13° | 4.7 mm | 4 | |
| 2 May | Moderate or heavy rain shower | 16° /12° | 21.6 mm | 4 | |
| 3 May | Patchy rain possible | 16° /12° | 1.9 mm | 4 | |
| 4 May | Sunny | 18° /12° | 1.2 mm | 5 | |
| 5 May | Overcast | 18° /13° | 0 mm | 4 | |
| 6 May | Partly cloudy | 19° /14° | 0 mm | 6 | |
| 7 May | Sunny | 18° /14° | 4.7 mm | 5 | |
| 8 May | Cloudy | 19° /13° | 0.3 mm | 4 | |
| 9 May | Patchy rain possible | 18° /14° | 0.1 mm | 5 | |
| 10 May | Moderate rain at times | 17° /14° | 6.2 mm | 5 | |
| 11 May | Moderate or heavy rain shower | 17° /13° | 10.3 mm | 5 | |
| 12 May | Heavy rain at times | 19° /13° | 3.5 mm | 5 | |
| 13 May | Moderate rain at times | 18° /13° | 3.7 mm | 4 | |
| 14 May | Moderate or heavy rain shower | 16° /14° | 19.7 mm | 4 | |
| 15 May | Patchy rain possible | 17° /13° | 3.3 mm | 4 | |
| 16 May | Moderate or heavy rain shower | 17° /14° | 34.2 mm | 4 | |
| 17 May | Patchy rain possible | 18° /14° | 1.6 mm | 4 | |
| 18 May | Partly cloudy | 19° /13° | 0.6 mm | 6 | |
| 19 May | Patchy rain possible | 19° /13° | 0.8 mm | 5 | |
| 20 May | Patchy rain possible | 20° /15° | 1.6 mm | 5 | |
| 21 May | Sunny | 22° /16° | 5.1 mm | 6 | |
| 22 May | Sunny | 21° /16° | 3.4 mm | 5 | |
| 23 May | Sunny | 21° /15° | 1.9 mm | 5 | |
| 24 May | Sunny | 21° /15° | 0.3 mm | 5 | |
| 25 May | Sunny | 22° /15° | 0 mm | 6 | |
| 26 May | Partly cloudy | 23° /16° | 0 mm | 6 | |
| 27 May | Sunny | 22° /17° | 0.3 mm | 6 | |
| 28 May | Sunny | 22° /16° | 0.8 mm | 6 | |
| 29 May | Patchy rain possible | 22° /16° | 0.5 mm | 5 | |
| 30 May | Heavy rain at times | 22° /16° | 9 mm | 5 | |
| 31 May | Partly cloudy | 21° /15° | 14.1 mm | 6 | |
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Important Notice
Our weather forecast for Istria 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 Istria forecast closer to your planned date for the most up-to-date weather information.
Istria in May - FAQ
What are the expected maximum and minimum temperatures in Istria during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Istria during May?
Significant rainfall exceeding 262.4 mm is expected in Istria during May, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Istria during May?
The average wind speed in Istria during May is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Istria in May?
As you prepare for your trip to Istria in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Istria, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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