May Weather in Idrija, Slovenia

Last updated: August 27, 2025

May in Idrija, Slovenia offers a vibrant tapestry of weather, with temperatures ranging from a cozy 1°C (35°F) at night to a pleasant maximum of 26°C (79°F) during the day. The average temperature hovers around 14°C (57°F), making it an ideal time for outdoor activities. However, expect a touch of dampness, as the month sees 223 mm (8.8 in) of rainfall over 21 days, contributing to a humidity level of 70%. This blend of warmth and moisture enhances the lush landscapes characteristic of Idrija in spring, inviting exploration and adventure amidst its scenic beauty.

May Temperature in Idrija

In May, Idrija, Slovenia, begins to shake off the chill of winter, welcoming a noticeable rise in temperatures. With minimums hovering around 1°C (35°F) and averages reaching 14°C (57°F), the month marks a significant shift towards warmer days. The maximum temperatures can soar up to 26°C (79°F), creating ideal conditions for outdoor activities and exploration. This gradual increase from the preceding months reflects nature's vibrant transition, inviting both locals and visitors to revel in the beauty of springtime as flowers bloom and the landscape comes alive. As May unfolds, Idrija transforms into a charming destination, epitomizing the warmth and vitality of the season ahead.

May Weather in Idrija: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Idrija, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Idrija, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec343842505767696960524336
Data source: Temperature data for Idrija generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Idrija

May in Idrija, Slovenia, is characterized by a significant uptick in precipitation, with 223 mm (8.8 in) recorded over 21 days of rain. This dramatic increase follows the wetter April, which brought 137 mm of rainfall, while starkly contrasting with the drier winter months like January and February. As spring unfolds, the surge in moisture not only enriches the lush landscapes but also highlights a trend of increasing precipitation leading into summer. With nearly two-thirds of the month experiencing rainfall, May sets the stage for the region's vibrant flora, making it a captivating time for nature enthusiasts and those keen on experiencing the rejuvenation that follows such abundant rainfall.

May Precipitation Trends in Idrija

The chart displays monthly precipitation patterns in Idrija, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Idrija, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec70132103137223128137131194134193169
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Idrija

In Idrija, Slovenia, May marks a transition into more pleasant weather, with humidity levels averaging around 70%. This gradual decline is noticeable from the wetter months of winter and early spring, where January's humidity peaks at 88% and only drops to 73% by April. Following May, the trend continues downward, reaching its lowest point in August at 51%. The overall pattern suggests a steady move toward drier conditions as summer approaches, providing a refreshing respite after the heavy moisture of the earlier months. As the seasons shift, the air in Idrija becomes increasingly comfortable, making it an ideal time for outdoor activities amidst the lush greenery of spring.

May Average Humidity in Idrija

This chart illustrates the average monthly humidity levels in Idrija, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Idrija is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Idrija

As May unfolds in Idrija, Slovenia, residents and visitors should be prepared for a significant spike in sun exposure, with the UV Index reaching 8, marking it as a very high level. This increase from the previous months highlights a seasonal trend where spring gives way to summer, drastically reducing the burn time to just 15 minutes for unprotected skin. Following a gradual rise from January's low levels, the intensity of ultraviolet rays peaks in May, encouraging outdoor enthusiasts to embrace the sunshine while also reminding them to take appropriate sun safety measures. With this trend continuing into June, when the UV Index hits 9, awareness and protection from UV rays become essential. For more details about the UV Index throughout the year, check out Idrija UV Index.

Maximum UV Index Levels in Idrija for May

The chart shows the monthly maximum UV Index (UVI) for Idrija in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Idrija typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Idrija May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Idrija

In Idrija, Slovenia, May shines brightly with an impressive 360 hours of sunshine, marking a delightful peak in the spring season. This month stands out amid a gradual increase in daylight that starts from January's 180 hours, steadily climbing as winter gives way to spring. By the time April arrives, the warmth of the sun begins to be felt more intensely, with 336 hours of sunshine, setting the stage for May's radiant days. As summer approaches, June takes the lead with 409 hours, but it’s May’s vibrant glow that truly heralds the season of outdoor activities and exploration. The upward trend showcases not only the transition into summer but also the enchanting beauty of Idrija as it basks in the sunlight, inviting residents and visitors alike to revel in its picturesque landscapes.

Monthly Sunshine Duration in Idrija: May Highlighted

The May sunshine duration represents the total number of hours Idrija experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec180h222h307h336h360h409h426h392h317h282h215h206h
Data source: Idrija May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Idrija During May

In Idrija, Slovenia, May sees a 31% chance of sunny weather, a slight dip from the vibrant spring months of March (56%) and even April (34%). While May doesn't boast the sunniest disposition, it's a transitional month that hints at the upcoming brighter days of early summer, particularly June, which enjoys a promising 49% chance of sunshine. This pattern suggests that as the year progresses, the likelihood of sunny weather generally increases, with both July and August also maintaining a steady 45% chance. Thus, while May may be a bit subdued in sunshine, it’s a stepping stone towards the sun-drenched days that lie ahead.

Percentage of Sunny Days in May in Idrija

The chart illustrates the percentage of sunny days in Idrija throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Idrija experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%37%56%34%32%49%45%45%50%38%29%33%
Data source: Idrija May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Idrija in May

As spring fades into summer, Idrija, Slovenia, experiences a remarkable increase in daylight duration. Starting from a modest 9 hours in January, the days gradually lengthen, reaching 14 hours by May, marking a vibrant transition into the season's warmth. This steady climb reflects nature's awakening, with each subsequent month welcoming more sunlight until it peaks at 15 hours in June and July. However, as summer turns to autumn, the daylight begins to wane, decreasing to 12 hours by September and tapering off to 8 hours in December. This rhythm of longer days in the warmer months evokes a sense of vitality and connection to the natural world, inviting residents and visitors alike to fully embrace the sunshine of Idrija.

Average Daylight Hours in Idrija for May

The chart illustrates the variation in daylight duration in Idrija throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 5m10h 20m11h 56m13h 34m14h 58m15h 40m15h 18m14h 3m12h 29m10h 52m9h 26m8h 41m
Data source: Idrija daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Idrija

In Idrija, Slovenia, May brings a gentle breeze with an average wind speed of 1.9 m/s (4 mph), mirroring the calmness of March and April. This consistency in wind patterns is notable as it transitions smoothly from the stillness of winter months, which linger around similar speeds, into the slightly brisker autumn period where winds pick up, notably in October at 2.4 m/s (5 mph). The month of May maintains a tranquil atmosphere, making it an ideal time for outdoor activities without the disruption of strong gusts. As summer approaches, one can expect only a slight decline in wind speed, ensuring that Idrija remains a serene haven during this picturesque time of year.

Average May Wind Speed in Idrija

The chart displays monthly wind speed patterns in Idrija, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.92.11.92.01.9 m/s1.61.71.71.72.42.21.7
Data source: Idrija May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Idrija Compares to Other Months

Weather in Idrija varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Idrija, focusing on differences in temperature, rainfall, humidity, and UV levels.

May and January showcase starkly contrasting weather patterns. In May, temperatures range from a chilly 1°C (35°F) to a pleasant 26°C (79°F), with an average of 14°C (57°F), making it a much warmer month overall. On the other hand, January experiences much colder temperatures, dipping as low as -12°C (11°F) and peaking at 10°C (51°F), with an average of just 1°C (34°F). Precipitation varies significantly as well, with May receiving 223 mm (8.8 in) over 21 days compared to January's 70 mm (2.8 in) across only 7 days. Additionally, January tends to be more humid at 88%, whereas May has a humidity level of 70%. For more detailed information about January weather, you can visit Idrija weather in January.

When comparing the weather in May and February, it's evident that May is significantly warmer and features a wider temperature range. May sees average temperatures around 14°C (57°F), peaking at a comfortable 26°C (79°F), while February struggles with much colder conditions, averaging just 3°C (38°F) and reaching a maximum of 19°C (66°F). Precipitation is higher in May, with 223 mm (8.8 in) falling over 21 days, compared to February's 132 mm (5.2 in) over only 11 days. Additionally, May boasts lower humidity levels at 70%, in contrast to February's higher humidity at 82%. For more detailed insights into February's climate, you can visit Idrija weather in February.

In comparing the weather of May and March, it's clear that May brings significantly warmer temperatures, with averages around 14°C (57°F) compared to March's cooler average of 6°C (42°F). While both months experience a range of temperatures, March can drop as low as -17°C (2°F), making it feel much brisker than May, where even the minimum temperature of 1°C (35°F) feels relatively mild. Additionally, May tends to be wetter, receiving 223 mm (8.8 in) of precipitation over 21 days, while March sees only 103 mm (4.1 in) over 11 days. Interestingly, March also has a slightly higher humidity level at 73%, compared to May's 70%. For a detailed weather overview specific to March, you can refer to Idrija weather in March.

In comparing the weather between April and May, we see notable differences in both temperature and precipitation patterns. April experiences cooler temperatures with a minimum of -9°C (16°F) and an average of 10°C (50°F), while May warms up significantly, with a minimum of 1°C (35°F) and an average of 14°C (57°F). Although both months can reach a maximum of 25°C (78°F), May provides a broader temperature range, peaking at 26°C (79°F). Precipitation is notably higher in May, totaling 223 mm (8.8 in) over 21 days, compared to April's 137 mm (5.4 in) over 12 days. Humidity levels are slightly lower in May at 70%, compared to April's 73%. For more detailed information on April weather, you can visit Idrija weather in April.

May and June exhibit notable differences in weather patterns. In May, temperatures range from a chilly 1°C (35°F) at night to a mild 26°C (79°F) during the day, with an average temperature of 14°C (57°F). The month is characterized by significant precipitation, totaling 223 mm (8.8 in) over 21 days, accompanied by a humidity level of 70%. In contrast, June sees a marked increase in temperature, with minimums of 6°C (43°F), averages of 19°C (67°F), and maxima soaring to 35°C (95°F). Precipitation drops to 128 mm (5.0 in) over just 12 days, while humidity remains relatively stable at 69%. For more detailed insights, check out Idrija weather in June.

In comparing the weather between May and July, notable differences emerge. May experiences a broader temperature range with a minimum of 1°C (35°F) and a maximum of 26°C (79°F), averaging around 14°C (57°F). It also sees significant precipitation of 223 mm (8.8 in) over 21 days, contributing to a humidity level of 70%. In contrast, July offers warmer conditions with a minimum temperature of 10°C (50°F) and a maximum reaching 33°C (93°F), averaging at 20°C (69°F). With average precipitation dropping to 137 mm (5.4 in) over 16 days, July's humidity also decreases to 63%. For more details about July weather, visit Idrija weather in July.

The weather in May and August presents a striking contrast, both in temperature and overall climate conditions. In May, temperatures range from a chilly minimum of 1°C (35°F) to a warm maximum of 26°C (79°F), with an average of 14°C (57°F). The month is characterized by frequent rainfall, accumulating to 223 mm (8.8 in) over 21 days, resulting in a relatively high humidity level of 70%. In comparison, August enjoys a much warmer climate, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 34°C (93°F) and an average of 21°C (69°F). Precipitation decreases significantly to 131 mm (5.2 in) over 15 days, leading to a more comfortable humidity level of 51%. For more detailed information on August weather, you can check Idrija weather in August.

May and September present distinct weather characteristics that reflect the transition between spring and autumn. In May, temperatures range from a chilly 1°C (35°F) at night to a warm 26°C (79°F) during the day, with an average of 14°C (57°F). This month sees significant rainfall, totaling 223 mm (8.8 in) over 21 days, accompanied by a humidity level of 70%. Conversely, September offers slightly milder temperatures, with minimums around 2°C (36°F) and maximums reaching up to 29°C (85°F), averaging 16°C (60°F). Rainfall is less frequent, totaling 194 mm (7.6 in) over 13 days, and humidity decreases to 64%. For more specific insights about September weather, you can visit Idrija weather in September.

May and October in Idrija present distinct weather characteristics that highlight the transition into and out of the warmer months. In May, temperatures range from a minimum of 1°C (35°F) to a maximum of 26°C (79°F), with an average of 14°C (57°F). This month sees substantial rainfall, totaling 223 mm (8.8 in) over 21 days, while humidity sits at a moderate 70%. In contrast, October experiences cooler temperatures, with a minimum of 0°C (33°F), an average of 11°C (52°F), and a maximum of 23°C (73°F). Although the precipitation is lower at 134 mm (5.3 in) over just 11 days, humidity rises to 83%, contributing to a noticeably damp atmosphere. For more specific insights into October's weather, you can check out Idrija weather in October.

May and November offer quite contrasting weather experiences. In May, temperatures range from a minimum of 1°C (35°F) to a warm maximum of 26°C (79°F), with an average of 14°C (57°F) and a significant amount of precipitation at 223 mm (8.8 in) over 21 days. The humidity during this month hovers around 70%. In contrast, November is much cooler, with temperatures dropping to a minimum of -6°C (22°F) and averaging 6°C (44°F), peaking at 18°C (64°F). Despite a lower precipitation level of 193 mm (7.6 in) spread over just 13 days, November experiences higher humidity levels at 89%. For a more detailed look at November's conditions, you can check Idrija weather in November.

May and December in Idrija present contrasting weather conditions. In May, temperatures range from a cool 1°C (35°F) at night to a pleasant 26°C (79°F) during the day, with an average of 14°C (57°F). The month sees significant rainfall, with 223 mm (8.8 in) of precipitation spread over 21 days, resulting in a humidity level of 70%. In contrast, December is much colder, with temperatures dropping to a minimum of -11°C (13°F) and an average of just 2°C (36°F), peaking at 12°C (55°F). The winter month also experiences moisture, though less than May, with 169 mm (6.7 in) of precipitation over 11 days and a higher humidity level of 88%. For more detailed information, you can check Idrija weather in December.

Compare Idrija's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Idrija

As spring unfolds, May in Idrija brings a delightful transition marked by milder temperatures and the promise of blossoming nature. While daytime warmth can reach a pleasant 26°C (79°F), cooler nights remind us of the lingering chill of early spring, often dipping to 1°C (35°F). This month stands out with its moderate humidity levels at 70%, contributing to the lush greenery that characterizes the landscape. However, expect to see more frequent rain, as May experiences around 21 days of precipitation, totaling about 223 mm (8.8 in). This makes it notably wetter compared to previous months, setting the stage for vibrant growth and picturesque scenery. For a deeper dive into the weather trends throughout the year, explore Idrija Climate.