Last updated: August 21, 2025
In January, Oia, Greece, offers a mild winter experience, characterized by a maximum temperature of 20°C (68°F) and an average of 13°C (56°F). Visitors can expect cool evenings, with temperatures dropping to a minimum of 5°C (40°F). January brings approximately 76 mm (3.0 in) of rain over about 11 days, contributing to the region's lush landscapes. With an average humidity level of 77%, the air retains a fresh feel, making Oia a serene destination for those seeking a tranquil getaway amid picturesque surroundings.
In January, Oia, Greece, experiences a mild winter climate, with temperatures ranging from a crisp 5°C (40°F) at night to a comfortable 20°C (68°F) during the day. The average temperature hovers around 13°C (56°F), making it a perfect time to explore the picturesque village without the bustling summer crowds. As the month progresses into February, a slight increase in warmth is noted, with minimum temperatures rising to 7°C (44°F) and daytime averages reaching 14°C (58°F). This trend of gradually warming weather continues into March and April, where mornings become pleasantly mild, and daytime highs reach up to 20°C (69°F) by late April. Throughout the early months of the year, Oia gently transitions from winter's embrace into the approach of spring, offering visitors the ideal climate for discovering its stunning landscapes and charming architecture.
In January, Oia, Greece, experiences its most significant precipitation of the year, with an average of 76 mm (3.0 in) of rainfall spread over approximately 11 days. This month's wet weather marks the transition from the drier winter months to a more varied climate. Following January, precipitation steadily decreases, with February receiving 58 mm (2.3 in), and by the time spring begins in March, rainfall drops to just 44 mm (1.7 in). The trend continues into the warmer months, as April, May, and June see dramatically reduced amounts, culminating in nearly rain-free July and August. This shift highlights the Mediterranean climate's characteristic transition from wet and cooler winters to hot and dry summers, making January a standout month for those appreciating the island's lush, green landscapes before the summer heat takes over.
In January, Oia, Greece, experiences a humidity level of 77%, setting a tone of mild moisture that characterizes the winter months. This level remains consistent through February and March, reflecting the island's tranquility before the summer rush. As spring approaches in April, the humidity stays steady at 77%, gradually shifting upward in May when it peaks at 81%, signaling the onset of the warmer season. Interestingly, June also maintains a 77% humidity, suggesting a temporary respite before the summer heat. The dry summer months of July and August see a decline, with humidity dropping to 71% and 66% respectively, providing a more comfortable environment for visitors. As September rolls in, humidity rises slightly to 70%, and then fluctuates gently throughout fall, landing at 76% in October and averaging around 77% again in November and December. Thus, while winter and early spring offer a consistent humid backdrop, the summer months provide a refreshing contrast, encapsulating the seasonal diversity of this stunning island.
In January, Oia, Greece, experiences a moderate UV Index of 3, allowing for a safe exposure time of 30 minutes before sunburn risks increase. As the months progress, the UV Index gradually climbs, reaching a peak of 10 in the summer months of June through August, indicating very high exposure levels and a significantly reduced burn time of just 15 minutes. The transition into autumn sees a decline, with the UV Index dropping to 7 in October and then further to 4 by November, before returning to 3 in December, restoring a more forgiving sun exposure. These trends highlight the importance of being vigilant about sun protection, especially as spring approaches and UV levels rise dramatically. For more detailed information, visit Oia UV Index.
UV Risk Categories
January in Oia, Greece, may be the start of the year, but it welcomes visitors with a generous 218 hours of sunshine. As winter transitions into spring, the days gradually brighten, with February offering 272 hours and March surging to 336 hours. This upward trend continues into April, basking in 354 hours of golden rays, hinting at the warmth to come. By May and June, locals and travelers alike can revel in 401 and 412 hours respectively, as summer beckons. The sunshine peaks in July with 424 hours, creating a vibrant atmosphere. Even as August wanes slightly, the sun still shines brightly with 397 hours. The days begin to shorten in the fall, but Oia still enjoys a substantial 350 hours in September and 325 hours in October, before descending into the cooler months of November and December with 277 and 267 hours. This delightful ebb and flow of sunshine paints Oia as a year-round destination, perfect for those who appreciate both the gentle beginnings of winter and the vibrant blooms of summer.
In Oia, Greece, January brings a 45% chance of sunny weather, setting the stage for the month ahead as winter transitions into spring. While this may seem modest, it’s a promising start compared to the clearer skies of February and March, which boast 63% and 65% chances of sunshine respectively. This trend of increasing sunlight continues into the spring months, peaking dramatically in the summer with almost guaranteed sun. Visitors can expect January to be a blend of cool temperatures and occasional sunlight, but the promise of brighter days is just around the corner as the season progresses.
In Oia, Greece, the January daylight duration offers a gentle reminder that winter is still in full swing, with about 9 hours of daylight illuminating the charming village. As the months progress, there's a steady increase in daylight, peaking in May through July at a delightful 14 hours. This gradual lightening of the days not only enhances the vibrant hues of the landscape but also invites more outdoor exploration and enjoyment. However, as summer begins to wane, daylight dips back down, returning to 10 hours in November and narrowing to 9 hours by December. This rhythmic cycle of light through the year paints a beautiful picture of Oia’s seasonal transitions, enticing visitors to experience its serene charm across all seasons.
In January, the winds of Oia, Greece, dance at an average speed of 7.7 m/s (17 mph), setting a brisk tone for the month. As winter unfolds, the winds remain consistently strong, with February seeing just a slight dip to 7.6 m/s (17 mph). The breezes pick up momentum in March, reaching 8.4 m/s (19 mph), hinting at the impending arrival of spring. Interestingly, as the weather warms into the summer months, the wind speed tends to mellow, hitting a low of 5.4 m/s (12 mph) in June. Yet, by September, the winds surge again, averaging 8.1 m/s (18 mph), reflecting a seasonal revival. Overall, the wind patterns in Oia exhibit a dynamic rhythm, with invigorating gusts in the cooler months and a calm lull as summer graces the island.
Weather in Oia varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Oia, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures range from a minimum of 5°C (40°F) to a maximum of 20°C (68°F), with an average of 13°C (56°F). This month sees considerable rainfall, totaling 76 mm (3.0 in) over 11 days, and the humidity levels are around 77%.
February brings slightly milder weather, with minimum temperatures of 7°C (44°F) and a maximum of 19°C (66°F), resulting in an average temperature of 14°C (58°F). Precipitation decreases to 58 mm (2.3 in) spread over 8 days, and humidity remains similar at 76%. Overall, February is a touch warmer and drier compared to January. For more details on weather specifics, you can check Oia weather in February.
In January, the weather features a mild temperature range with a minimum of 5°C (40°F) and an average of 13°C (56°F), peaking at a maximum of 20°C (68°F). This month experiences 76 mm (3.0 in) of precipitation over 11 days, coupled with a humidity level of 77%.
In contrast, March brings slightly warmer temperatures, with a minimum of 6°C (44°F) and an average of 14°C (58°F), although the maximum drops a bit to 18°C (65°F). The precipitation is significantly lower at 44 mm (1.7 in), spread over just 6 days, while humidity remains constant at 77%. For more detailed information, check Oia weather in March.
In January, the weather features a milder range of temperatures with a minimum of 5°C (40°F) and an average of 13°C (56°F), peaking at a maximum of 20°C (68°F). The month is quite wet, receiving 76 mm (3.0 in) of precipitation over 11 days, while the humidity remains relatively high at 77%. In contrast, April brings warmer conditions with a minimum temperature of 11°C (51°F) and an average of 16°C (61°F), maintaining a similar maximum of 20°C (69°F). The rain is significantly reduced, totaling only 17 mm (0.7 in) over just 2 days, yet the humidity stays constant at 77%. For more details on the weather in April, you can follow this link: Oia weather in April.
In January, the weather tends to be much cooler, with temperatures ranging from a minimum of 5°C (40°F) to a maximum of 20°C (68°F), and an average of 13°C (56°F). This month experiences significant rainfall, with precipitation totaling 76 mm (3.0 in) over about 11 days, contributing to a humidity level of 77%. In contrast, May sees a considerable warming trend, with minimum temperatures of 15°C (60°F) and a maximum of 24°C (75°F), averaging around 19°C (67°F). The dry conditions in May are evident, as rainfall is minimal at just 4 mm (0.2 in) and there are no rainy days, while humidity slightly rises to 81%. For further details about the weather in May, you can check Oia weather in May.
January and June offer strikingly different weather conditions. In January, temperatures range from a cool 5°C (40°F) to a comfortable 20°C (68°F), with an average of 13°C (56°F). The month is relatively wet, experiencing about 76 mm (3.0 in) of rainfall over 11 days, all while maintaining a steady humidity of 77%. Conversely, June presents a much warmer climate, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 27°C (80°F) and an average of 23°C (73°F). Notably, June sees very little precipitation, with just 3 mm (0.1 in) over 0 days, yet humidity remains consistent at 77%. For more information on weather specifics, visit Oia weather in June.
In January, the weather tends to be much cooler, with temperatures ranging from a minimum of 5°C (40°F) to a maximum of 20°C (68°F) and an average of 13°C (56°F). During this month, precipitation is quite significant, with 76 mm (3.0 in) of rain spread over 11 days, contributing to a higher humidity level of 77%. In contrast, July brings warm, dry conditions, with minimum temperatures around 22°C (72°F) and maximums reaching 28°C (83°F), averaging 25°C (77°F). Remarkably, July experiences no precipitation at all, maintaining a lower humidity level of 71%. For more details on July's climate, check out Oia weather in July.
In January, the weather is considerably cooler, featuring a minimum temperature of 5°C (40°F) and an average temperature of 13°C (56°F), with highs reaching up to 20°C (68°F). This month also brings significant precipitation of 76 mm (3.0 in) across 11 days, resulting in a humidity level of 77%. In contrast, August boasts a much warmer climate, with temperatures ranging from a minimum of 22°C (73°F) to a maximum of 30°C (86°F) and a comfortable average of 25°C (77°F). Remarkably, August experiences almost no rainfall, recording just 1 mm (0.0 in) and having 0 precipitation days, leading to a lower humidity level of 66%. For a closer look at the summer weather specifics, check out Oia weather in August.
In January, the weather is considerably cooler, with temperatures ranging from a minimum of 5°C (40°F) to a maximum of 20°C (68°F) and an average of 13°C (56°F). The month is also characterized by higher precipitation, totaling 76 mm (3.0 in) over 11 days, accompanied by a humidity level of 77%. In contrast, September enjoys much warmer weather, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 27°C (82°F) and an average of 24°C (75°F). The month boasts very low precipitation, with just 2 mm (0.1 in) and no rain days, resulting in a slightly lower humidity of 70%. For a detailed look at September weather in this region, you can visit Oia weather in September.
January and October present contrasting weather conditions. In January, temperatures range from a chilly 5°C (40°F) at night to a more pleasant average of 13°C (56°F) during the day, peaking at a max of 20°C (68°F). This month also experiences considerable precipitation, with 76 mm (3.0 in) spread over 11 days and a humidity level of 77%. In stark contrast, October boasts milder temperatures, with nighttime lows of 16°C (61°F) and daytime averages of 21°C (70°F), reaching up to 26°C (79°F) at its warmest. Precipitation drops significantly to just 14 mm (0.5 in) over merely 2 days, while the humidity remains fairly consistent at 76%. For a closer look at October weather, check out Oia weather in October.
In January, the weather is generally cooler, with temperatures ranging from a minimum of 5°C (40°F) to a maximum of 20°C (68°F), and an average of 13°C (56°F). The month also sees higher precipitation, totaling 76 mm (3.0 in) over about 11 days, coupled with a consistent humidity level of 77%. In contrast, November offers milder temperatures, with lows of 13°C (55°F) and highs reaching 23°C (73°F), averaging 18°C (65°F). This month experiences significantly less rainfall, totaling 41 mm (1.6 in) over just 5 days, while maintaining the same humidity of 77%. For more details on November weather, you can check Oia weather in November.
In January, the weather features cooler temperatures compared to December, with a minimum of 5°C (40°F) and an average of 13°C (56°F), while December enjoys a milder minimum temperature of 10°C (50°F) and an average of 15°C (60°F). Both months see similar maximum temperatures, peaking at 20°C (68°F). January experiences slightly more precipitation at 76 mm (3.0 in) over 11 days, whereas December has 72 mm (2.8 in) across 12 days. Humidity levels are quite comparable as well, with January at 77% and December at 78%. For a more detailed exploration of the weather during December, visit Oia weather in December.
January in Oia offers a refreshing change from the typically warmer and drier months. With average temperatures hovering around 13°C (56°F), visitors can enjoy milder conditions, making it perfect for leisurely exploration of the breathtaking landscapes. However, prepare for increased moisture, as 76 mm of rainfall can be expected over 11 days, contributing to a 77% humidity level that can add to the chill in the air. This cooler, wetter climate contrasts sharply with the vibrant summer months, where sunshine prevails. For more insights into how the weather evolves throughout the year, check out Oia Climate.