Last updated: August 21, 2025
April in Kos, Greece brings a delightful transition into spring, characterized by a maximum temperature of 22°C (71°F) and an average of 16°C (62°F). Visitors can expect mild days and cool evenings, with minimum temperatures dipping to 9°C (49°F). The month is relatively wet, receiving about 36 mm (1.4 in) of rainfall over five days, accompanied by a humidity level averaging 77%. This blend of warmth and occasional showers creates a refreshing atmosphere, perfect for exploring the island's stunning landscapes and rich history.
As April unfolds in Kos, Greece, temperatures begin to paint a delightful picture of spring. With minimums rising to 9°C (49°F) and averages reaching a pleasant 16°C (62°F), the island shakes off the chill of winter. By day, the sun warms the landscape, pushing the maximum temperatures up to 22°C (71°F), creating the perfect climate for exploring the stunning coastal scenery or enjoying outdoor cafés. This month marks a significant leap from the cooler early months, inviting travelers to revel in the burgeoning warmth and the beauty of blooming nature. As the days grow longer and more inviting, April truly heralds the arrival of a blissful Mediterranean spring.
In April, Kos, Greece experiences a notable transition in its weather patterns, marked by a sharp decline in precipitation. With only 36 mm (1.4 in) of rain spread across just 5 days, April represents a significant drop from the preceding months, which are characterized by much heavier rainfall—193 mm (7.6 in) in January and 108 mm (4.2 in) in February. As the island steps into spring, the milder weather is complemented by a substantial reduction in rainy days, paving the way for sunnier skies and vibrant blossoms. This trend continues into May, where the rains nearly evaporate to a mere 7 mm (0.3 in) over just 2 days, signaling the approach of the dry summer months ahead.
In April, the island of Kos, Greece, maintains a steady humidity level of 77%, mirroring the averages from the previous months of January and March. This consistency suggests a transitional climate as spring unfolds, preceding the rise in humidity that typically occurs in May at 81%. Following April, the humidity begins to taper off with the hotter summer months, peaking at 71% in July and dipping further to 66% in August. Overall, the humidity trends in Kos reflect a moderate and pleasant atmosphere that many travelers find inviting, especially as the seasons shift.
As spring unfolds in Kos, Greece, the UV Index experiences a notable ascent, reaching an impressive 8 in April. This marks a shift into the very high exposure category, significantly shortening the burn time to just 15 minutes for fair-skinned individuals. Comparatively, the preceding months displayed a gradually increasing trend, starting from a moderate index of 3 in January and climbing to 7 by March. As summer approaches, the UV index peaks at 10 in May through August, encouraging residents and visitors alike to be vigilant and protective of their skin. With such dramatic fluctuations in UV levels, it's essential to stay informed about daily sun safety measures. For more detailed insights, check out Kos UV Index.
UV Risk Categories
April marks a delightful transition into spring on the enchanting island of Kos, Greece, with an impressive 352 hours of sunshine. This sunny month follows a steady upward trend, beginning with a modest 212 hours in January and blossoming into the vibrant daylight that greets visitors each April. As winter fades, the days grow longer and brighter, setting the stage for an influx of outdoor activities and exploration. The increase in sunshine prepares the island's landscapes for the forthcoming warm months, such as May with its 401 hours, and June with 410 hours. April's golden rays not only enhance the natural beauty of Kos but invigorate the spirit, making it the perfect time to embrace the island's charm before the summer peak.
As spring unfolds on the beautiful island of Kos, Greece, April brings a 56% chance of sunny weather, marking a transitional period between the cooler months and the sunny days of summer. This likelihood of sunshine is a slight dip compared to the 68% found in March, suggesting that while the mild weather continues, the persistent sun of late spring is just around the corner. As the island warms up, the chances significantly increase in May to a striking 79%, leading into the sun-drenched months of June and July, where the sunshine reaches an impressive 94% and up to 98%, respectively. Thus, while April offers a taste of pleasant weather, it serves as a prologue to the island's idyllic summer climate, inviting visitors to enjoy the bloom of spring amidst the emerging warmth.
As spring blossoms in Kos, Greece, daylight duration steadily increases, culminating in a delightful 13 hours of sunlight in April. This upward trend begins in January with a modest 9 hours, and by March, the days grow noticeably longer as we welcome 11 hours of daylight. April marks a significant leap, with an additional 2 hours of sunlight that invigorates the island's atmosphere. This trend continues into May, where daylight peaks at 14 hours, making it perfect for outdoor adventures. The gradual increase in daylight throughout these months not only brightens the landscape but also enhances the overall mood, paving the way for a vibrant summer ahead.
As April unfolds in Kos, Greece, the island continues to feel the refreshing embrace of the wind, with an average speed of 7.9 m/s (18 mph). This month aligns with the seasonal trend of steady breezes that roll in from the Aegean Sea, echoing the wind patterns seen in both January and December. While slightly softer winds are anticipated as summer approaches, with May dipping to 5.9 m/s (13 mph), April maintains a vibrant energy that makes it ideal for outdoor activities. Notably, the consistent wind speeds throughout the early months create a sense of continuity, inviting visitors to bask in the invigorating atmosphere before the heat of summer sets in. The gentle yet brisk winds not only enhance the charm of this Mediterranean paradise but also set the stage for the warm, sun-kissed days ahead.
Weather in Kos varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Kos, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather in Kos is generally milder and more pleasant than January, with average temperatures ranging from a minimum of 9°C (49°F) to a maximum of 22°C (71°F). In contrast, January tends to be cooler, with temperatures averaging between 5°C (41°F) and 18°C (66°F). While April experiences less rainfall with about 36 mm (1.4 in) over 5 days, January is significantly wetter, receiving 193 mm (7.6 in) of precipitation over 14 days. Interestingly, both months have similar humidity levels at 77%, contributing to the overall dampness of the winter season. For more detailed information about January weather, check out Kos weather in January.
When comparing the weather in April and February, April generally offers milder and more pleasant conditions. The average temperature in April is 16°C (62°F) with a maximum of 22°C (71°F), while February has a cooler average of 14°C (57°F) and peaks at 18°C (66°F). Additionally, April experiences significantly less precipitation, with only 36 mm (1.4 in) falling over about 5 days, compared to February’s 108 mm (4.2 in) over 11 days. Humidity levels are similar, with April at 77% and February slightly lower at 76%. For more details on February weather, you can visit Kos weather in February.
In comparing the weather between March and April, April emerges as the warmer month with average temperatures increasing from 14°C (58°F) in March to 16°C (62°F). Additionally, April features milder maximum temperatures at 22°C (71°F) compared to March’s maximum of 18°C (65°F). While both months experience the same humidity level of 77%, April sees significantly less precipitation, totaling 36 mm (1.4 in) over 5 days, in contrast to March's 95 mm (3.7 in) over 8 days. For more details, you can check out the Kos weather in March.
April and May exhibit a noticeable shift in weather patterns. In April, temperatures range from a minimum of 9°C (49°F) to a maximum of 22°C (71°F), with an average of 16°C (62°F). The month sees around 36 mm (1.4 in) of precipitation over five days, coupled with a humidity level of 77%. Conversely, May enjoys significantly warmer temperatures, with a minimum of 15°C (60°F) and a maximum of 24°C (76°F), averaging 20°C (68°F). Precipitation drops to just 7 mm (0.3 in) over two days, while humidity rises slightly to 81%. For more details on May’s weather, you can visit Kos weather in May.
April and June present quite different weather patterns. In April, temperatures range from a low of 9°C (49°F) to a high of 22°C (71°F), with an average of 16°C (62°F). This month sees about 36 mm (1.4 inches) of precipitation over five days, indicating a relatively wet period. In contrast, June brings warmer conditions, with minimum temperatures starting at 16°C (62°F) and maximums reaching 29°C (84°F), leaving an average of 23°C (73°F). Notably, June experiences significantly less rainfall, with only 6 mm (0.2 inches) over just one day. Both months share a humidity level of 77%, providing a consistent feeling of moisture in the air. For a more detailed look at June weather, you can visit Kos weather in June.
April weather typically features cooler temperatures, with a minimum of 9°C (49°F) and an average of 16°C (62°F), peaking at 22°C (71°F). The month experiences a moderate level of precipitation at 36 mm (1.4 in) across about five days, accompanied by relatively high humidity at 77%. In contrast, July boasts significantly warmer conditions, with temperatures ranging from a minimum of 22°C (72°F) to an average of 25°C (78°F), and a maximum reaching 30°C (86°F). Notably, July is exceptionally dry with no recorded precipitation and lower humidity at 71%. For those interested in detailed insights, check out Kos weather in July.
April weather features mild temperatures, with a minimum of 9°C (49°F) and an average of 16°C (62°F), peaking at 22°C (71°F). It typically experiences precipitation, averaging 36 mm (1.4 in) over about five days, and has a relatively high humidity level of 77%. In contrast, August brings much warmer conditions, with a minimum temperature of 23°C (74°F), an average of 26°C (79°F), and a maximum of 30°C (87°F). The summer month is notably dry, receiving no precipitation and maintaining a lower humidity of 66%. For more details on August weather, you can check Kos weather in August.
April brings a mild and fresh climate, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 22°C (71°F) and an average of 16°C (62°F). The month experiences about 36 mm (1.4 in) of precipitation over five days, accompanied by relatively high humidity at 77%. In contrast, September sees warmer conditions, with temperatures starting at a minimum of 19°C (66°F) and peaking at 28°C (84°F), averaging around 24°C (76°F). This month enjoys significantly less rainfall, with only 4 mm (0.2 in) over just one day, and slightly lower humidity at 70%. For more details on September weather, check out Kos weather in September.
April and October present distinct weather patterns, reflecting the transition from spring to autumn. In April, temperatures range from a minimum of 9°C (49°F) to a maximum of 22°C (71°F), with an average of 16°C (62°F). This month sees about 36 mm (1.4 in) of precipitation over five days, accompanied by a relatively high humidity level of 77%. In contrast, October boasts warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 25°C (78°F), averaging 21°C (71°F). Although it receives more rainfall at 57 mm (2.2 in) over just four days, the humidity remains similar at 76%. For more details on October weather, visit Kos weather in October.
April and November both showcase mild temperatures, but their weather characteristics differ notably. In April, temperatures range from a minimum of 9°C (49°F) to a maximum of 22°C (71°F), with an average of 16°C (62°F), while November boasts slightly higher temperatures, with a minimum of 11°C (52°F) and a maximum of 23°C (74°F), averaging at 19°C (66°F). However, November experiences significantly increased rainfall, accumulating 123 mm (4.8 in) over 9 days compared to April's 36 mm (1.4 in) over just 5 days. Despite similar humidity levels at 77%, the overall ambiance in November may feel damper due to its higher precipitation. For more insights, check Kos weather in November.
In April, the weather tends to be mildly pleasant, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 22°C (71°F) and an average of 16°C (62°F). The month experiences relatively low precipitation, averaging about 36 mm (1.4 in) over approximately 5 days, accompanied by a humidity level of 77%.
In contrast, December is cooler and wetter, featuring temperatures that range from a minimum of 8°C (47°F) to a maximum of 20°C (69°F), with an average temperature of 15°C (60°F). It sees significantly higher rainfall, accumulating 237 mm (9.3 in) over about 15 days, while maintaining a similar humidity level of 78%. For further details on the December climate, you can visit this link: Kos weather in December.
April in Kos marks a delightful transition from the cooler whispers of winter to the warmth of spring. With milder temperatures and a pleasant average that invites outdoor exploration, this month stands out from the hotter summer months ahead. While rain may grace the island on a few occasions, contributing to a lush landscape, the overall humidity remains comfortable, making it an ideal time for travelers seeking a balance of sunshine and fresh breezes. As nature awakens, visitors can fully enjoy the vibrant scenery without the crowds that summer brings. For a more detailed understanding of how Kos's climate evolves throughout the year, check out Kos Climate.