Last updated: August 21, 2025
January in Ios, Greece offers a mild, albeit somewhat wet, winter experience. With maximum temperatures reaching 20°C (68°F) and an average of 13°C (56°F), visitors can enjoy pleasant daytime weather, though nighttime temperatures can drop to a brisk 4°C (39°F). The island sees approximately 88 mm (3.5 in) of rain over 12 days, contributing to a humidity level of 77%, creating a fresh and invigorating atmosphere. Whether you’re exploring the scenic landscapes or seeking a peaceful retreat, Ios in January presents a unique blend of mild temperatures and enchanting natural beauty.
In January, Ios, Greece, greets visitors with a refreshing climate marked by mild temperatures. The month typically sees minimums around 4°C (39°F) and maximums reaching 20°C (68°F), reflecting the island's cool yet pleasant winter ambiance. With an average temperature of 13°C (56°F), January serves as a transition between the colder months of December and the gradually warming days ahead. As the year progresses into February and March, temperatures begin to slowly rise, maintaining a comfortable range that invites exploration of the island’s scenic beauty and quaint villages. This gradual warming trend hints at the vibrant spring to come, making early winter an ideal time for those seeking a serene getaway.
In January, Ios, Greece experiences its wettest month, showcasing a striking 88 mm (3.5 in) of precipitation over approximately 12 days. This marks a significant transition from the drier months that follow, with rainfall tapering off dramatically as winter gives way to spring. February sees a notable decline to 57 mm (2.3 in), while both March and April reduce further to 42 mm (1.7 in) and a mere 15 mm (0.6 in), respectively. The trend continues, with precipitation dwindling to just a few millimeters by May and June, often reaching a dry stint in the summer months. This seasonal pattern underscores Ios's shift from wet winter to the arid warmth of summer, inviting travelers to enjoy the island's sun-drenched allure.
In January, Ios, Greece, experiences a notable humidity level of 77%, which is consistent with the preceding and following months, reflecting a generally humid winter climate. This steady humidity continues through to April, maintaining the same percentage, while a slight uptick occurs in May when humidity rises to 81%, marking the transition into a warmer season. As summer approaches, a gradual decline in humidity is observed, peaking at 66% in August, before creeping back up to 76% by October. The island then sees a return to higher humidity levels as fall sets in, with November and December reflecting values around 77% and 78%, respectively. Overall, the humidity in Ios exhibits a cyclical pattern, peaking slightly in mid-year and averaging from the high seventies to low eighties, creating a vibrant, refreshing atmosphere characteristic of the island's Mediterranean charm.
In January, Ios, Greece experiences a moderate UV Index of 3, indicating a 30-minute burn time for most skin types. As the year progresses into February, the UV Index rises to 5, maintaining that moderate exposure risk. However, by March, visitors should be prepared for a shift to the high category, with a UV Index of 7 and a reduced burn time of just 25 minutes. This upward trend peaks in the summer months, where from April to August, the UV Index consistently hits 9 or 10, labeled as very high, demanding a vigilant approach to sun safety with a mere 15-minute burn time. As autumn approaches, levels begin to taper off, dropping down to 4 in November and returning to a moderate 3 in December. For detailed insights on how to enjoy the sun safely throughout the year, check out the full information on the Ios UV Index.
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In Ios, Greece, January serves as the tranquil prelude to a sun-soaked year, offering an inviting 215 hours of sunshine. As winter fades, February brings an increase to 269 hours, hinting at the approaching delight of spring. By the time March arrives, the days lengthen significantly, presenting an impressive 336 hours of sunlight, which sets the stage for April's even brighter 354 hours. The month of May bursts forth with 401 hours, embodying the essence of Mediterranean warmth, while June peaks at 412 hours, making it an ideal time for sun-seekers. As summer intensifies in July, sunlight reaches its zenith with 425 hours, before gracefully tapering off in August to 397 hours. The autumn months maintain a robust sun schedule, with September delivering 350 hours, October at 325 hours, and November experiencing a gentle decline to 276 hours. December's 261 hours ushers in the winter season, rounding out the year with a reassuring promise of sunshine, ensuring that every month in Ios has its own bright charm.
In January, visitors to Ios, Greece, can expect a 44% chance of sunny weather, marking it as one of the cooler months of the year. This percentage sets the stage for a gradual increase in sunshine as the months progress; by February, the likelihood rises to 63%, and it continues to climb, reaching 65% in March. The trend becomes even more promising as spring unfolds, with April offering a 57% chance and May seeing a significant jump to 78%. As summer approaches, the sun becomes a reliable companion, peaking at an impressive 99% in July and 100% in August. Overall, while January may have its share of cloudy days, it heralds the start of a sunny season that transitions into the bright, warm days of summer.
In Ios, Greece, January's daylight lasts about 9 hours, marking the season's quiet, reflective start. As the month of February unfolds, daylight increases to 10 hours, hinting at the approaching spring. This upward trend continues into March, where daylight stretches to 11 hours, inviting a gradual awakening of the island. By April, the sun graces Ios with 13 hours of light, signifying the vibrant blooms of spring. As we transition into late spring and summer, May and June each bask in a splendid 14 hours of daylight, perfect for enjoying the island’s stunning beaches and lively atmosphere. July and August maintain this sun-kissed duration, creating an idyllic backdrop for summer adventures. However, as autumn approaches in September, sunlight recedes to 12 hours, continuing its slow descent to 11 hours by October and back to 10 hours in November. The cycle closes in December with 9 hours, reflecting the tranquil beauty of winter on this enchanting Greek island. This natural ebb and flow of daylight beautifully illustrates the rhythms of life in Ios throughout the year.
In January, the average wind speed in Ios, Greece, reaches a brisk 7.8 m/s (18 mph), setting a tone for a dynamic winter atmosphere. As the months progress, wind speeds exhibit a subtle fluctuation, peaking in March at 8.3 m/s (19 mph), suggesting a springtime vivacity. Interestingly, the winds begin to mellow in the ensuing months, dropping to a calm 5.1 m/s (11 mph) by June, perfect for leisurely beach days. However, a notable resurgence occurs in September and December, where the winds return to a lively 8.1 m/s (18 mph), reminding us of the robust character of the island's weather as it transitions back into cooler months. Overall, January serves as a fitting precursor to the seasonal undulations that define Ios' unique charm throughout the year.
Weather in Ios varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Ios, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparison to January, February experiences slightly milder temperatures, with minimums averaging 7°C (44°F) compared to January's 4°C (39°F). The average temperature rises to 14°C (57°F) in February, while January maintains an average of 13°C (56°F), indicating a subtle warming trend. Additionally, February sees reduced precipitation, with only 57 mm (2.3 in) falling over 8 days, compared to January's 88 mm (3.5 in) over 12 days. Humidity levels are fairly consistent between the two months, with February at 76% and January at 77%. For more detailed insights, you can check Ios weather in February.
In comparing the weather between January and March, January experiences slightly cooler temperatures, with a minimum of 4°C (39°F), an average of 13°C (56°F), and a maximum of 20°C (68°F). It also sees more precipitation, totaling 88 mm (3.5 in) over 12 days, while maintaining consistent humidity levels at 77%. In contrast, March offers a minor warmth increase, with a minimum of 6°C (43°F), an average of 14°C (58°F), and a maximum of 18°C (65°F). The month is notably drier, with only 42 mm (1.7 in) of rain falling across 7 days, yet the humidity remains steady at 77%. For more detailed insights on the weather in March, you can visit Ios weather in March.
In January, the weather tends to be cooler, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (68°F), and an average of 13°C (56°F). This month also experiences considerable rainfall, with around 88 mm (3.5 in) spread over 12 days, resulting in relatively high humidity levels at 77%. In contrast, April brings warmer conditions, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 20°C (69°F) and an average of 16°C (61°F). The month is notably drier, receiving only 15 mm (0.6 in) of precipitation over just 2 days, while maintaining the same humidity level of 77%. For more detailed insights into the weather in April, you can check Ios weather in April.
In January, the weather tends to be relatively cool, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (68°F), and an average around 13°C (56°F). There is significant precipitation, with about 88 mm (3.5 in) falling over 12 days, while humidity levels are moderately high at 77%. In contrast, May experiences much warmer weather, with minimum temperatures of 15°C (60°F) and a comfortable maximum of 23°C (74°F), resulting in an average temperature of 19°C (66°F). Notably, May is significantly drier, with only 4 mm (0.1 in) of precipitation and no rainy days, and humidity slightly increases to 81%. For more detailed information, you can check Ios weather in May.
In comparing the weather between January and June, it's clear that June offers a significantly warmer and drier experience. In January, temperatures range from a minimum of 4°C (39°F) to a maximum of 20°C (68°F), with an average of 13°C (56°F) and 88 mm (3.5 in) of precipitation over 12 days. In contrast, June boasts milder temperatures, with a minimum of 18°C (64°F), an average of 22°C (73°F), and a peak of 27°C (81°F). Additionally, June sees minimal rainfall, with only 3 mm (0.1 in) on just 1 day, all while maintaining the same humidity level of 77%. For those looking to explore more about June weather on Ios, visit Ios weather in June.
The weather in January contrasts sharply with that of July, reflecting the seasonal shifts in temperature and precipitation. In January, temperatures range from a chilly minimum of 4°C (39°F) to a comfortable maximum of 20°C (68°F), accompanied by significant precipitation of 88 mm (3.5 in) over 12 days and a high humidity level of 77%. In stark contrast, July boasts much warmer temperatures, with a minimum of 22°C (72°F) and a maximum of 28°C (83°F). Remarkably, July experiences no rain, resulting in dry conditions with an average humidity of 71%. For a deeper look into the summer weather in Ios, you can check Ios weather in July.
January and August present stark contrasts in weather. In January, temperatures range from a cool 4°C (39°F) at night to a mild average of 13°C (56°F) during the day, peaking at 20°C (68°F). This month experiences considerable precipitation, with 88 mm (3.5 in) of rain spread over 12 days, along with a relatively high humidity level of 77%. In contrast, August boasts much warmer temperatures, with a minimum of 22°C (72°F) and an average of 25°C (77°F), reaching a maximum of 29°C (85°F). Notably, August is remarkably dry, with only 1 mm (0.0 in) of rainfall and no recorded rainy days, accompanied by lower humidity at 66%. For more details about August conditions, check out Ios weather in August.
In January, the weather in Ios is considerably cooler, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (68°F) and an average of 13°C (56°F). This month also experiences notable precipitation, with 88 mm (3.5 in) spread over 12 days, resulting in a higher humidity level of 77%. In contrast, September brings much warmer conditions, featuring temperatures that start from a minimum of 19°C (67°F), peak at 27°C (81°F), and average around 23°C (74°F). Remarkably, this month sees only 3 mm (0.1 in) of precipitation over no rainy days, contributing to a slightly lower humidity of 70%. For a detailed look at weather specifics, check out Ios weather in September.
In January, the weather is notably cooler with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (68°F), and the month experiences higher rainfall at 88 mm (3.5 in) over approximately 12 days, accompanied by a humidity level of 77%. In contrast, October enjoys milder conditions with average temperatures between 15°C (60°F) and 26°C (79°F). This month is characterized by significantly less rainfall, at just 18 mm (0.7 in) over 3 days, and a slightly lower humidity level of 76%. For more detailed information, you can check Ios weather in October.
In January, the weather is considerably cooler, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (68°F), while November enjoys milder conditions with temperatures between 12°C (55°F) and 22°C (73°F). January experiences more precipitation at 88 mm (3.5 in) over about 12 days, compared to November's 48 mm (1.9 in) spread over just 6 days. Despite similar humidity levels at 77%, the overall climate in November is much more temperate and pleasant, making it an ideal time to visit. For more details, you can check Ios weather in November.
In comparing the weather of January and December, we see some notable differences. January typically experiences a cooler range of temperatures, with a minimum of 4°C (39°F) compared to December's milder minimum of 9°C (49°F). The average temperatures remain similar, with January averaging 13°C (56°F) and December at 15°C (60°F). Both months see a maximum temperature of 20°C (68°F). Precipitation is slightly higher in January at 88 mm (3.5 in) over 12 days, while December has a bit less at 82 mm (3.2 in) across 13 days. Humidity levels are also quite close, with January at 77% and December at 78%. For more detailed information, you can check out Ios weather in December.
As January unfolds on Ios, the island showcases a unique charm distinctly different from other months. While the maximum temperature can reach a comfortable 20°C (68°F), the average dips to a cooler 13°C (56°F), hinting at a refreshing chill in the air. The island experiences increased precipitation with 12 days of rain, contributing to a lush landscape that stands in stark contrast to the sun-drenched summer months. With humidity levels around 77%, visitors can expect a damp yet invigorating atmosphere, perfect for exploring the island's scenic beauty. For a deeper understanding of the island's weather patterns, check out Ios Climate.