October Weather in Kalymnos, Greece

Last updated: August 21, 2025

In October, Kalymnos experiences a delightful transition into autumn, with maximum temperatures reaching 25°C (77°F) and a comfortable average of 21°C (70°F). The evenings can be pleasantly cool, dipping to a minimum of 15°C (59°F). While the island enjoys a relatively dry spell, with only 38 mm (1.5 in) of rainfall spread over approximately 4 days, the humidity remains high at 76%, adding a tropical feel to the crisp air. October presents an ideal balance of warmth and mild weather, perfect for outdoor activities and exploring the stunning landscapes of this charming Greek island.

October Temperature in Kalymnos

October in Kalymnos, Greece, marks a delightful transition as summer fades and autumn sets in. With minimum temperatures around 15°C (59°F) and averages peaking at 21°C (70°F), it offers a perfect blend of warmth and coolness. Daytime highs typically reach 25°C (77°F), allowing for pleasant outdoor activities amidst stunning landscapes. Compared to the sweltering heights of summer, where temperatures often exceed 29°C (85°F), October presents a more comfortable climate for exploration. This month invites travelers to enjoy the lingering sunshine and vibrant natural beauty of the island, making it an ideal time for hiking, swimming, and savoring local cuisine without the summer crowds.

October Weather in Kalymnos: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Kalymnos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kalymnos, October 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).
JanFebMarAprMayJunJulAugSepOctNovDec555757616773777875706660
Data source: Temperature data for Kalymnos generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Kalymnos

In October, Kalymnos experiences a notable shift in climate as it transitions from the summer's arid conditions. With an average precipitation of 38 mm (1.5 in) falling over four days, the month marks the beginning of the wetter season following the nearly rainless summer months of July and August. This uptick in rainfall is a precursor to the significantly wetter months ahead, such as November and December, where precipitation levels soar to 87 mm (3.4 in) and 179 mm (7.1 in) respectively. Overall, October stands out as a threshold month, balancing the tail end of the dry season with the onset of autumn rains, which revitalize the island’s landscape and prepare it for the winter months.

October Precipitation Trends in Kalymnos

The chart displays monthly precipitation patterns in Kalymnos, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Kalymnos, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec150977530440043887179
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Kalymnos

In October, Kalymnos experiences a humidity level of 76%, which is consistent with the trends seen throughout the year. After the warmer summer months, where humidity dips to 66% in August and 71% in July, October marks a slight rebound to figures similar to those in the earlier months. The humidity remains stable, oscillating between 76% and 81% in the spring and early summer. This residual moisture in the air, comfortable enough to enjoy the autumn sun, enhances the island's charm, making it an enticing destination for travelers seeking a mild climate and breathtaking landscapes.

October Average Humidity in Kalymnos

This chart illustrates the average monthly humidity levels in Kalymnos, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Kalymnos is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%77%77%81%77%72%66%70%76%77%78%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Kalymnos

In October, Kalymnos, Greece experiences a UV Index of 6, marking a return to the high exposure category after the intense summer months. As temperatures begin to cool, the burn time extends to 25 minutes, allowing for more comfortable outdoor activities without the immediate risk of sunburn. This trend showcases the gradual tapering from the peak UV levels of summer, where indices soared to a consistent 10, into the more moderate rays of late autumn. While October still calls for caution, it offers a gentler sun, perfect for enjoying the island’s stunning landscapes. For a detailed look at how the UV Index changes throughout the year, visit Kalymnos UV Index.

Maximum UV Index Levels in Kalymnos for October

The chart shows the monthly maximum UV Index (UVI) for Kalymnos in October, 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 October, the maximum UV index in Kalymnos typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3578101010108643
Data source: Kalymnos October 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.

October Sunshine in Kalymnos

As October unfolds in Kalymnos, Greece, the island basks in a delightful 326 hours of sunshine, wrapping up the sun-drenched season with a warm embrace. This month, while experiencing a noticeable drop from the peak of summer in July, still outshines the earlier part of the year, reflecting a vibrant transition from the sweltering heat of summer to the milder, yet still inviting, autumn days. The sunshine hours in October, though fewer than in the preceding months, maintain a pattern of generous light that starts with a meager 214 hours in January and steadily climbs to a summer peak. As the year progresses, Kalymnos showcases a lively dance of days filled with light, making October an enchanting time to explore the beauty and charm of this Greek island.

Monthly Sunshine Duration in Kalymnos: October Highlighted

The October sunshine duration represents the total number of hours Kalymnos experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec214h271h334h353h403h412h425h396h350h326h277h268h
Data source: Kalymnos October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kalymnos During October

In Kalymnos, Greece, the likelihood of sunny weather hits an impressive 80% in October, following a stunning summer marked by nearly constant sunshine. This trend illustrates a transition from the intense heat of July and August, where the sun shines almost indiscriminately, to a more moderate fall climate. With September's notable 96% chance of sun, October retains significant warmth and brightness, making it an attractive time for visitors seeking pleasant weather while avoiding the peak tourist season. Complemented by the lush landscapes of early autumn, this month offers an idyllic backdrop for outdoor adventures and relaxation under the sun.

Percentage of Sunny Days in October in Kalymnos

The chart illustrates the percentage of sunny days in Kalymnos throughout the year, with October 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 Kalymnos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%67%68%55%78%94%99%100%96%80%48%44%
Data source: Kalymnos October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kalymnos in October

As autumn settles in Kalymnos, October brings a gentle shift in daylight hours, with about 11 hours of sunshine each day. Following the sun-soaked summer months of 14 hours in June through August, the daylight gradually begins to wane, reminiscent of a natural ebb and flow. September offers a slight retreat with 12 hours of daylight, leading into October's crisp air and shorter days. This decline continues into November, where daylight dips further to 10 hours, marking the transition towards winter. Overall, the trend in Kalymnos reflects a beautiful cycle of light, where each season gifts its own rhythm to the island.

Average Daylight Hours in Kalymnos for October

The chart illustrates the variation in daylight duration in Kalymnos throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 55m10h 49m11h 58m13h 9m14h 8m14h 38m14h 22m13h 30m12h 22m11h 12m10h 10m9h 39m
Data source: Kalymnos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Kalymnos

As October sweeps in, the wind in Kalymnos starts to gently mellow, showcasing an average speed of 6.4 m/s (14 mph), a notable dip from the bustling winds of summer. After months of stronger breezes in July and August, where speeds reached up to 8.4 m/s (19 mph), October invites a more tranquil atmosphere, creating ideal conditions for both relaxation and exploration. This gradual decline continues into November, where the wind settles at 6.1 m/s (14 mph), hinting at the calm that winter will bring. Despite the lighter winds, this month still exudes the island's charm, painting a picturesque backdrop for outdoor activities such as hiking and sailing amid the stunning Aegean scenery.

Average October Wind Speed in Kalymnos

The chart displays monthly wind speed patterns in Kalymnos, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec8.38.38.58.46.27.78.48.28.06.4 m/s6.18.4
Data source: Kalymnos October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Kalymnos Compares to Other Months

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

October weather is characterized by milder temperatures, with a minimum of 15°C (59°F) and an average of 21°C (70°F), peaking at 25°C (77°F). It experiences relatively low precipitation of 38 mm (1.5 in) over just four days, coupled with moderate humidity at 76%. In contrast, January sees a significant drop in temperatures, with a minimum of 5°C (42°F) and an average of 13°C (56°F), climbing to a maximum of 19°C (66°F). The month is wetter, with total precipitation reaching 150 mm (5.9 in) spread over 13 days, while humidity remains slightly higher at 77%. For more details about January weather, visit Kalymnos weather in January.

October and February present distinctly different weather conditions. In October, temperatures range from a minimum of 15°C (59°F) to a maximum of 25°C (77°F), with an average of 21°C (70°F), making it a pleasant month for outdoor activities. The precipitation is relatively low at 38 mm (1.5 in) over just 4 days. In contrast, February is cooler, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 19°C (66°F) and an average of 14°C (57°F). It also experiences significantly more rainfall, totaling 97 mm (3.8 in) over 10 days, while humidity remains consistent at 76%. For more detailed information, check Kalymnos weather in February.

In comparing the weather of October and March, October tends to be warmer and drier. With average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 25°C (77°F), it offers a more pleasant climate with only 38 mm (1.5 in) of precipitation over about 4 days. In contrast, March experiences cooler conditions, with average temperatures between 5°C (41°F) and 18°C (65°F). This month also sees higher precipitation levels, totaling 75 mm (3.0 in) over roughly 7 days, making it a wetter period. Both months have similar humidity levels, hovering around 76-77%. For more details, you can check out Kalymnos weather in March.

When comparing the weather in October and April, October tends to be warmer with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 25°C (77°F), while April experiences cooler temperatures, with a range from 10°C (50°F) to 21°C (70°F). Both months see a similar number of rainy days, with October receiving 38 mm (1.5 in) of precipitation and April slightly less at 30 mm (1.2 in). Humidity levels are comparable as well, with October at 76% and April at 77%. For more detailed information, check out Kalymnos weather in April.

In October, the weather features a comfortable average temperature of 21°C (70°F) with daytime highs reaching 25°C (77°F), while it experiences a bit more rainfall, totaling 38 mm (1.5 in) over about four days. The humidity hovers around 76%, adding a slight stickiness to the air. In contrast, May sees a slightly cooler average temperature of 19°C (67°F) with highs of 24°C (75°F), but it is considerably drier, receiving only 4 mm (0.1 in) of precipitation and no rainy days at all. The humidity is marginally higher at 81%, contributing to a warm, inviting atmosphere. For more detailed insights on May weather, you can explore Kalymnos weather in May.

When comparing the weather in October and June, October features slightly cooler temperatures, with an average of 21°C (70°F) compared to June's 23°C (73°F). The maximum temperatures in October can reach 25°C (77°F), while June sees highs of 27°C (82°F). Precipitation is more frequent in October, with around 38 mm (1.5 in) falling over 4 days, whereas June experiences much less rain, totaling only 4 mm (0.1 in) over just 1 day. Humidity levels remain similar, with October at 76% and June slightly higher at 77%. For a more detailed look at June weather, check out Kalymnos weather in June.

When comparing the weather in October to that of July, notable differences emerge. In October, temperatures range from a minimum of 15°C (59°F) to a maximum of 25°C (77°F), with an average of 21°C (70°F). The month sees some rainfall, with a total of 38 mm (1.5 in) spread over about 4 days, and a relatively high humidity of 76%. In contrast, July is warmer, with temperatures starting at a minimum of 22°C (71°F) and peaking at 29°C (84°F), averaging 25°C (77°F). July is much drier, experiencing no rainfall at all, and has a lower humidity of 71%. For more insights, you can check Kalymnos weather in July.

When comparing the weather in October and August, October tends to be significantly cooler and wetter. In October, temperatures range from a minimum of 15°C (59°F) to a maximum of 25°C (77°F), with an average of 21°C (70°F), while August boasts higher temperatures, with a minimum of 23°C (73°F) and a maximum of 29°C (85°F), averaging around 25°C (78°F). Additionally, October sees about 38 mm (1.5 in) of precipitation over four days, in contrast to the dry conditions of August, which experiences no precipitation at all. The humidity levels also differ, with October at 76% and August at a lower 66%. For more details on August weather, you can check Kalymnos weather in August.

In comparing the weather between September and October, a noticeable shift can be observed. October presents cooler temperatures, with a minimum of 15°C (59°F) and an average of 21°C (70°F), compared to September's warmer range, where temperatures drop from a minimum of 19°C (66°F) to an average of 24°C (75°F). October also sees an increase in precipitation, totaling 38 mm (1.5 in) over four days, while September remains dry with only 4 mm (0.1 in) and no rainy days. Additionally, humidity rises slightly in October to 76%, compared to September’s 70%. For more details, visit Kalymnos weather in September.

In October, the weather typically features milder temperatures with a minimum of 15°C (59°F), an average of 21°C (70°F), and a maximum of 25°C (77°F). The month experiences relatively low precipitation, averaging 38 mm (1.5 in) over just four days and maintains a humidity level of 76%. In contrast, November sees a slight drop in temperatures, with a minimum of 12°C (53°F), an average of 19°C (66°F), and a maximum of 23°C (74°F). However, it is considerably wetter, receiving 87 mm (3.4 in) of rain across eight days, while humidity remains similar at 77%. For more details on November weather, you can visit Kalymnos weather in November.

In October, the weather is generally warmer with minimum temperatures around 15°C (59°F) and an average of 21°C (70°F), peaking at a maximum of 25°C (77°F). The month experiences about 38 mm (1.5 in) of precipitation over approximately 4 days, with humidity levels at 76%. In contrast, December sees a significant drop in temperatures, with minimums around 9°C (48°F) and averages of 15°C (60°F), reaching a maximum of 21°C (69°F). This month is also much wetter, with rainfall totaling 179 mm (7.1 in) spread over 15 days and slightly higher humidity at 78%. For more detailed insights on December weather, you can visit Kalymnos weather in December.

Compare Kalymnos's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Kalymnos

As October unfolds in Kalymnos, the weather offers a delightful transition from the warmth of summer to the more temperate autumn. With maximum temperatures peaking at around 25°C, the days remain pleasantly warm, while average temperatures settle comfortably at 21°C. Nights cool down, inviting cozy evenings with lows of about 15°C. In contrast to the drier summer months, October sees a slight increase in humidity and occasional rainfall, with about 38 mm spread over just a few days, making it an ideal time for those seeking moderate conditions. This month provides a serene escape for travelers keen to enjoy the natural beauty of the island without the summer crowds. For more insights into the region's weather patterns, check out Kalymnos Climate.