August Weather in Rab, Croatia

Last updated: March 17, 2025

August in Rab, Croatia, offers a delightful combination of warmth and mild humidity, making it an ideal time for summer activities. Temperatures soar to a maximum of 31°C (89°F), with an inviting average of 25°C (77°F) allowing for comfortable outdoor exploration. While the month may see a few rainy days—around 4 days contributing to a total precipitation of 51 mm (2.0 in)—the 51% humidity adds a refreshing touch to the warm summer air. Whether lounging on the stunning beaches or enjoying local festivals, visitors will find August to be a captivating time on this picturesque island.

August Temperature in Rab

In August, Rab, Croatia, experiences its peak summer warmth, with minimum temperatures averaging around 15°C (60°F) and maximums soaring up to a delightful 31°C (89°F). This month boasts an inviting average temperature of 25°C (77°F), creating the perfect backdrop for sun-soaked beach days and vibrant outdoor activities. As the summer progresses from the mildness of June and July, August stands out not only for its warmth but also for its long, balmy evenings, making it an ideal time for visitors seeking to bask in the Mediterranean sun. The gradual increase in temperatures from earlier months sets the stage for a lively atmosphere, inviting travelers to embrace the season's full glory.

August Weather in Rab: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Rab, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434648556272757768615447
Data source: Temperature data for Rab 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.

August Precipitation in Rab

In August, Rab, Croatia experiences a moderate shift in precipitation, receiving 51 mm (2.0 in) of rain over four days. This month marks a slight uptick from the dry summer months of June and July, which recorded only 40 mm (1.6 in) and 44 mm (1.7 in), respectively. As the island transitions towards autumn, the rainfall serves as a gentle precursor to September's notable increase to 171 mm (6.7 in). The pattern observed suggests that while August remains relatively dry compared to the winter months, it acts as a bridge to the more significant precipitation levels that follow, indicating a shift in the climatic rhythm of the region.

August Precipitation Trends in Rab

The chart displays monthly precipitation patterns in Rab, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec1061429578118404451171128192230
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Rab

In Rab, Croatia, August marks a notable shift in humidity levels, dipping to an average of 51% – the lowest point of the year. This decline continues the trend of decreasing humidity observed since July, where levels reached 63%. The summer months reveal a refreshing transition from the higher humidity typical in winter, culminating in January’s 88%. As the seasons change, the island's atmosphere becomes increasingly inviting, making August an ideal time for beachgoers and outdoor enthusiasts alike to enjoy the ideal balance of warmth and reduced moisture. The gradual increase in humidity starts again in September, heralding the onset of autumn with 64% humidity, but during August, the pleasant, dry conditions dominate, creating a perfect backdrop for summer adventures.

August Average Humidity in Rab

This chart illustrates the average monthly humidity levels in Rab, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Rab

In August, Rab, Croatia, experiences a UV Index of 8, maintaining a very high exposure category, similar to the peak months of June and July. This signifies that sun protection is essential, as the risk of harm from unprotected sun exposure is considerable, with a burn time of just 15 minutes. Such conditions reflect the summer's culmination, where the intensity of sunlight remains high despite a slight dip from July's maximum. As the month progresses into September, the UV Index will start to decline, indicating a transition to less intense sun exposure. For a comprehensive understanding of UV trends throughout the year, check out Rab UV Index.

Maximum UV Index Levels in Rab for August

The chart shows the monthly maximum UV Index (UVI) for Rab in August, 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.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Rab August 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.

August Sunshine in Rab

August in Rab, Croatia, is a delightful culmination of summer sunshine, boasting 404 hours of radiant daylight. As days grow longer from the winter's 189 hours in January to the bright warmth of August, it's clear that the sun shines most generously during the peak summer months, reaching its zenith in July with 434 hours. Though August sees a slight dip, it still offers plenty of sunshine to relish before the cooler months arrive. Transitioning to autumn, September provides a gentle reduction with 340 hours, reminding visitors that the enchanting allure of Rab’s summer days lingers just a little longer. This trend establishes Rab as a prime destination for sun-seekers wishing to bask in ample sunshine, particularly during the vibrant summer months.

Monthly Sunshine Duration in Rab: August Highlighted

The August sunshine duration represents the total number of hours Rab experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec189h239h323h359h395h422h434h404h340h306h238h228h
Data source: Rab August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rab During August

In August, Rab, Croatia, enjoys a delightful 68% chance of sunny weather, marking it as one of the sunniest months of the year. This trend highlights a consistent increase in sunshine from the start of the year, with a notable jump from 59% in July to 68% in August. The sunshine potential peaks during these summer months, creating ideal conditions for beachgoers and outdoor enthusiasts alike. As summer wanes into September, the sunny likelihood slightly dips to 63%, yet August remains a prime time for basking in the vibrant Mediterranean sun.

Percentage of Sunny Days in August in Rab

The chart illustrates the percentage of sunny days in Rab throughout the year, with August 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 Rab experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%46%68%47%47%63%59%68%63%54%31%41%
Data source: Rab August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rab in August

In August, Rab, Croatia, enjoys a delightful 13 hours of daylight, marking a gentle decline from the peak summer days of 15 hours in both June and July. As the summer draws to a close, the early signs of autumn are apparent, yet the sun lingers warmly, casting a golden hue over the island. This gradual tapering of daylight continues into the fall months, with September offering 12 hours and October dipping further to 10 hours. Despite this shift, August remains a vibrant time, allowing plenty of opportunities for outdoor adventures and soaking up the sun before the days shorten dramatically in winter.

Average Daylight Hours in Rab for August

The chart illustrates the variation in daylight duration in Rab throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 13m10h 25m11h 56m13h 30m14h 50m15h 30m15h 9m13h 58m12h 28m10h 55m9h 33m8h 50m
Data source: Rab daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Rab

In August, the winds in Rab, Croatia offer a gentle embrace, with an average speed of 3.4 m/s (8 mph). This slight uptick from the summer’s calm makes it an ideal time for outdoor activities, as the breezy weather provides a refreshing edge to the warm coastal air. Notably, the wind speed in August is a subtle increase from the preceding month of July at 3.1 m/s (7 mph), marking a trend of increasing wind as the summer season fades. While summer months generally experience lighter breezes, a notable shift occurs in the fall with September's 3.1 m/s and October's brisk 4.6 m/s (10 mph), hinting at the changing seasons ahead. Overall, August maintains a balance, offering both serenity and invigorating gusts, making it a charming time to enjoy the natural beauty of Rab.

Average August Wind Speed in Rab

The chart displays monthly wind speed patterns in Rab, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.13.73.73.62.63.13.4 m/s3.14.64.84.0
Data source: Rab August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Rab Compares to Other Months

The weather in Rab changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Rab and find detailed weather information for every month.

August and January present stark contrasts in weather conditions. August enjoys a mild climate, with average temperatures reaching 25°C (77°F) and maximums soaring to 31°C (89°F). The month is relatively dry, with only 51 mm of precipitation over four days and humidity levels at 51%. In contrast, January is much colder, where temperatures plummet, with an average of just 6°C (44°F) and maximums of 14°C (58°F). Precipitation is more frequent, totaling 106 mm across nine days, accompanied by high humidity at 88%. For more detailed information on January weather, you can check Rab weather in January.

August and February present stark contrasts in weather patterns. In August, temperatures range from a mild 15°C (60°F) at night to a warm average of 25°C (77°F), peaking at a hot 31°C (89°F). Despite this warmth, humidity sits at a manageable 51%, and precipitation is relatively low with only 51 mm (2.0 in) falling over just four days. In contrast, February features significantly cooler temperatures, with nighttime lows dipping to -6°C (22°F) and a modest average of 8°C (47°F). The maximum temperature only reaches 17°C (64°F), and the month is much wetter, experiencing 142 mm (5.6 in) of precipitation over 12 days and a high humidity level of 82%. For more details on February weather, visit Rab weather in February.

August and March present starkly contrasting weather patterns. In August, temperatures range from a minimum of 15°C (60°F) to a maximum of 31°C (89°F), with an average of 25°C (77°F). The month typically experiences lower precipitation, averaging just 51 mm (2.0 in) over about 4 days, accompanied by a comfortable humidity level of 51%. In contrast, March sees much cooler temperatures, with a range from a chilly -7°C (20°F) to a maximum of 18°C (64°F) and an average of only 9°C (49°F). March is also wetter, with total precipitation reaching 95 mm (3.8 in) across approximately 9 days and higher humidity at 73%. To learn more about the specifics of March weather in Rab, you can check this link: Rab weather in March.

In comparing the weather between August and April, it's evident that August offers a warmer and more stable climate. With temperatures ranging from a minimum of 15°C (60°F) to a maximum of 31°C (89°F) and an average of 25°C (77°F), the month experiences relatively low precipitation at 51 mm (2.0 in) over just 4 days, alongside a moderate humidity of 51%.

In contrast, April features much cooler temperatures, with a minimum of 1°C (35°F) and an average of 13°C (55°F), peaking at a maximum of 22°C (72°F). This month sees more precipitation, totaling 78 mm (3.1 in) across 8 days, and a higher humidity level of 73%. For a detailed look at April's weather, you can visit Rab weather in April.

When comparing the weather in August and May, the differences are quite pronounced. August typically boasts warmer conditions, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 31°C (89°F) and an average of 25°C (77°F). In contrast, May experiences cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 25°C (77°F), averaging only 17°C (62°F). Precipitation levels also vary significantly; August sees 51 mm (2.0 in) over just 4 days, while May has much heavier rainfall, totaling 118 mm (4.7 in) across 12 days. Additionally, humidity is higher in May at 70%, compared to 51% in August. For a detailed look at May weather specifics, visit Rab weather in May.

The weather in August is generally warmer than in June, with average temperatures rising to 25°C (77°F) compared to June's 22°C (72°F). Although both months can reach a maximum of 31°C (88°F), August tends to feel more comfortable with lower humidity levels at 51%, while June experiences higher humidity at 69%. Additionally, August receives slightly more rainfall, totaling 51 mm (2.0 inches) over about 4 days, compared to June's 40 mm (1.6 inches) spread over 6 days. For more detailed insights about conditions in June, you can check Rab weather in June.

In comparing the weather between July and August, August typically offers slightly warmer temperatures, with a minimum of 15°C (60°F) and an average of 25°C (77°F), while July has a minimum of 17°C (63°F) and averages around 24°C (75°F). The maximum temperature in August can reach up to 31°C (89°F), whereas in July it peaks at 30°C (87°F). Precipitation levels are slightly higher in August, with 51 mm (2.0 in) over four days compared to July's 44 mm (1.7 in) during the same number of days. Additionally, humidity levels are lower in August at 51%, compared to July's higher humidity of 63%. This makes August generally feel a bit drier and warmer than July. For further details, check out the Rab weather in July.

August and September present a noticeable shift in weather patterns. August boasts warmer temperatures, with a minimum of 15°C (60°F) and an average of 25°C (77°F), while September cools slightly to a minimum of 10°C (50°F) and an average of 20°C (69°F). Precipitation also rises significantly in September, reaching 171 mm (6.7 in) over 10 days compared to August's 51 mm (2.0 in) across just 4 days, contributing to a higher humidity level of 64% in September, compared to 51% in August. For more details on September weather, check out Rab weather in September.

August tends to be warmer and drier compared to October, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 31°C (89°F) and an average of 25°C (77°F). Precipitation is relatively low at 51 mm (2.0 in) over just 4 days, coupled with a moderate humidity level of 51%. In stark contrast, October experiences cooler temperatures, with a range from a low of 8°C (47°F) to a high of 23°C (73°F) and an average of 16°C (61°F). Rainfall significantly increases in October, totaling 128 mm (5.0 in) over 9 days, and humidity rises to 83%, making the atmosphere feel much more humid. For more detailed insights, you can check Rab weather in October.

In comparing the weather of August and November, it is clear that these two months present vastly different conditions. August typically features warm temperatures, with a minimum of 15°C (60°F), an average of 25°C (77°F), and a maximum reaching up to 31°C (89°F). With relatively low precipitation of 51 mm (2.0 in) over just 4 days and moderate humidity at 51%, August tends to be a pleasant and dry summer month.

In contrast, November sees much cooler temperatures, dropping to a minimum of 3°C (38°F), an average of 12°C (54°F), and a maximum of 19°C (67°F). This month is characterized by significantly higher precipitation, measuring 192 mm (7.6 in) spread over 13 days, alongside higher humidity levels at 89%. The shift from the warmth of August to the chill and wetness of November highlights the transition from summer to late autumn. For more details on November weather, visit Rab weather in November.

The weather in August and December presents a stark contrast, with August featuring warmer temperatures that range from a minimum of 15°C (60°F) to a maximum of 31°C (89°F) and an average of 25°C (77°F). In this month, there is relatively low precipitation of 51 mm (2.0 in) over just 4 days, accompanied by a moderate humidity level of 51%. In contrast, December brings much cooler weather, with temperatures dipping to a minimum of 0°C (32°F) and reaching a maximum of 16°C (61°F), averaging around 9°C (48°F). This month experiences significantly higher precipitation, totaling 230 mm (9.1 in) over 15 days, along with a much higher humidity of 88%. For more details about the weather during this month, visit Rab weather in December.

Compare Rab's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Rab

August on Rab island offers a delightful contrast to the cooler months, boasting warm temperatures that make it ideal for beach activities and outdoor adventures. With averages around 25°C (77°F) and peaks hitting 31°C (89°F), the warmth invites visitors to bask in the sun while the comfortable 51% humidity adds a pleasant touch to the air. While there is a slight increase in precipitation with about 51 mm over just 4 days, this usually results in brief, refreshing showers that enhance the island's lush landscapes. For those seeking a vibrant summer escape, the August weather on Rab stands out, creating the perfect backdrop for relaxation and exploration. To learn more about how August compares with other months and the overall climate of Rab, visit Rab Climate.