October Weather in Cartago, Costa Rica

Last updated: August 21, 2025

In Cartago, Costa Rica, October ushers in a vibrant yet damp climate, marked by a maximum temperature of 24°C (76°F) and an average of 18°C (64°F), dipping to a refreshing minimum of 13°C (55°F). This time of year sees an impressive 601 mm (23.7 in) of rainfall occurring over 30 days, creating a lush, green landscape. With humidity levels hovering around 80%, October embodies the essence of a tropical wet season, providing a unique blend of cooler temperatures and abundant moisture that invigorates both the environment and its visitors.

October Temperature in Cartago

In October, temperatures in Cartago, Costa Rica exhibit a pleasant mildness, with minimums around 13°C (55°F) and maximums peaking at 24°C (76°F). The average temperature hovers at a comfortable 18°C (64°F), closely matching trends seen throughout the year. As the country transitions deeper into the rainy season, you might experience slightly cooler evenings. Despite the rains, October’s climate remains inviting, making it a delightful month for exploration. The overall consistency in temperatures throughout the year underscores Cartago’s equitable weather, fostering a climate that's as refreshing as it is enjoyable.

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

The chart illustrates October temperature patterns in Cartago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cartago, 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).
JanFebMarAprMayJunJulAugSepOctNovDec636464656565656564646463
Data source: Temperature data for Cartago 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.

October Precipitation in Cartago

In October, Cartago, Costa Rica, experiences its wettest month, with a staggering 601 mm (23.7 in) of rainfall spread over 30 days. This significant precipitation follows the trend established in the preceding months, where rainfall steadily increased, peaking in May and remaining consistently high through September. Notably, October's precipitation eclipses the previous months, reinforcing the region's reputation for abundant rainfall during the wet season. As the year winds down, the sheer volume of water transforms the landscape, invigorating the lush vegetation and enriching the local ecosystem, while also hinting at the approaching transition to drier months ahead.

October Precipitation Trends in Cartago

The chart displays monthly precipitation patterns in Cartago, 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 Cartago, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec35192815553239931540350860127278
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Cartago

In October, Cartago, Costa Rica experiences a notable shift in humidity, with levels reaching 80%. This is part of a trend that sees the region's humidity peak during the rainy season, as marked by June and July, when it soars to an impressive 84% and 85% respectively. Following the summer months, August and September maintain elevated humidity, hovering around 82% and 81%. As the year progresses towards November, the humidity remains steady at 80%, indicating a transition into the drier months ahead. Overall, October stands out as a month of lush moisture, contributing to Cartago's vibrant landscapes before the humidity begins its gradual decline into the end of the year.

October Average Humidity in Cartago

This chart illustrates the average monthly humidity levels in Cartago, 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 Cartago is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%68%66%67%69%84%85%82%81%80%80%73%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Cartago

In October, Cartago, Costa Rica, continues to experience extreme UV exposure, with the UV Index holding steady at 14, similar to the previous month. This marks a slight dip from the peak of 16 in April, but conditions remain intense, with a rapid burn time of just 10 minutes under the sun. The trend throughout the year shows consistently high UV levels, making it crucial for residents and visitors alike to prioritize sun safety measures. As October rolls in, be sure to stay informed and cautious to shield yourself from the sun's powerful rays. For more details, visit Cartago UV Index.

Maximum UV Index Levels in Cartago for October

The chart shows the monthly maximum UV Index (UVI) for Cartago 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 Cartago typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121415161514151414141211
Data source: Cartago 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 Cartago

In October, Cartago, Costa Rica, experiences a transition as the year progresses, with 206 hours of sunshine marking a noticeable dip following the vibrant summer months. This month typically sees less sunshine than its preceding counterparts, such as March with an impressive 331 hours and April at 295 hours. However, it still stands out with more sunlight than the rainy season's lows in August and September. As November approaches, sunshine begins to increase again, hinting at the return of brighter days. This gradual shift in the weather pattern reflects the distinct rhythm of Costa Rica's climate, where October serves as a prelude to the lush green beauty of the end of the rainy season.

Monthly Sunshine Duration in Cartago: October Highlighted

The October sunshine duration represents the total number of hours Cartago 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.
JanFebMarAprMayJunJulAugSepOctNovDec253h298h331h295h223h226h223h222h219h206h239h300h
Data source: Cartago October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cartago During October

In October, Cartago, Costa Rica, experiences a modest 14% chance of sunny weather, marking it as one of the cloudier months of the year. This trend follows a downward trajectory from the drier months of January and February, which boast sunny probabilities of 54% and 48% respectively. As the rainy season peaks, October stands out with significantly reduced sunshine, trailing behind the sunnier earlier months and leading into the more favorable conditions of November at 26%. Travelers seeking clear skies might want to plan their visits for the months that precede October, as the pattern indicates a gradual decline in sunshine during the late rainy season.

Percentage of Sunny Days in October in Cartago

The chart illustrates the percentage of sunny days in Cartago 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 Cartago experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%48%47%18%12%13%15%5%8%14%26%50%
Data source: Cartago October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cartago in October

In October, daylight in Cartago, Costa Rica begins to wane, offering 11 hours of sunlight, a slight reduction from the consistent 12 hours seen during the summer months from March to September. This transition signals the arrival of the drier season, as daylight gradually returns to 11 hours in both January and February. The pattern reveals a fascinating rhythm of light and dark throughout the year, where the vibrant days of April through September provide a harmonious balance before giving way to shorter days as the year winds down. This cyclical nature of daylight duration not only influences the local flora and fauna but also sets the stage for the region's seasonal activities and lifestyle.

Average Daylight Hours in Cartago for October

The chart illustrates the variation in daylight duration in Cartago throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 36m11h 48m12h 3m12h 20m12h 33m12h 40m12h 36m12h 24m12h 9m11h 53m11h 39m11h 33m
Data source: Cartago daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Cartago

As October arrives in Cartago, Costa Rica, the gentle whispers of the wind settle into a rhythmic pattern, with an average speed of 1.1 m/s (2 mph). This marks one of the year's calmest months, echoing the trend seen since June, where wind speeds have dipped to their lowest. Following a slight uptick in November to 1.4 m/s (3 mph), the breeze will pleasantly wrap around the vibrant landscapes and historic sites of the region, offering a serene backdrop for both locals and visitors. With this tranquil atmospheric shift, October presents an ideal time for leisurely strolls and outdoor adventures, showcasing the beauty of Cartago's nature under a softer, autumnal wind.

Average October Wind Speed in Cartago

The chart displays monthly wind speed patterns in Cartago, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.71.81.41.31.11.41.11.21.1 m/s1.41.7
Data source: Cartago October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Cartago Compares to Other Months

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

In October, the weather is generally warmer and wetter than in January. Average temperatures hover around 18°C (64°F) with maximums reaching up to 24°C (76°F), accompanied by high humidity at 80% and substantial rainfall of 601 mm (23.7 in) spread across 30 days. In stark contrast, January experiences slightly cooler temperatures, with averages of 17°C (63°F) and minimums around 11°C (51°F). Rainfall is significantly reduced to just 35 mm (1.4 in) over only 6 days, and the humidity drops to 68%. For more detailed information, you can refer to Cartago weather in January.

In October, the weather is characterized by higher humidity levels at 80% and significant rainfall, receiving an average of 601 mm of precipitation across 30 days. Temperatures range from a minimum of 13°C (55°F) to a maximum of 24°C (76°F), making it a relatively warm but wet month. In contrast, February presents a drier climate with only 19 mm of precipitation over just 5 days, and lower humidity at 68%. The temperatures remain consistent, with minimums around 11°C (51°F) and a maximum of 25°C (76°F). For more details, see Cartago weather in February.

In October, the weather is characterized by warmer temperatures, with a minimum of 13°C (55°F), an average of 18°C (64°F), and a maximum reaching 24°C (76°F). However, this month sees significant rainfall, totaling 601 mm (23.7 in) over 30 days, paired with high humidity levels of 80%. In contrast, March offers slightly cooler minimum temperatures at 11°C (53°F), while still having a similar average of 18°C (65°F) and a maximum of 25°C (77°F). March experiences much less rainfall, with only 28 mm (1.1 in) over six days and lower humidity at 66%. For more specific details on March weather, you can check Cartago weather in March.

When comparing the weather in October and April, both months showcase similar minimum temperatures, averaging around 13°C (55°F). However, April typically enjoys slightly warmer maximum temperatures, reaching up to 26°C (78°F), compared to October's peak of 24°C (76°F). In terms of precipitation, October is significantly wetter, receiving around 601 mm (23.7 in) spread over 30 days, while April experiences a more moderate rainfall of 155 mm (6.1 in) across 23 days. Additionally, humidity levels are higher in October at 80%, compared to April's 67%, resulting in a distinctly more humid atmosphere as the year draws to a close. For more insights on weather patterns, visit Cartago weather in April.

October and May showcase relatively mild temperatures, with October having a minimum of 13°C (55°F) and a maximum of 24°C (76°F), compared to May's slightly higher range of 14°C (57°F) to 26°C (79°F). Both months experience similar average temperatures of around 18°C (64°F to 65°F). However, October is markedly wetter, receiving 601 mm (23.7 in) of precipitation over 30 days, surpassing May's 532 mm (21.0 in) over 29 days. Additionally, October has a higher humidity level at 80%, while May's humidity sits at a more comfortable 69%. For more details on May weather, visit Cartago weather in May.

In comparing the weather of October and June, both months feature similar average temperatures, hovering around 18°C (64°F) to 18°C (66°F), with maximums reaching 24°C (76°F) in October and 25°C (76°F) in June. However, October experiences significantly higher precipitation, with 601 mm (23.7 in) over 30 days compared to June’s 399 mm (15.7 in) across 29 days. This results in October being not only wetter but also having slightly higher humidity at 80%, compared to June's 84%. For more detailed information on June weather, you can visit Cartago weather in June.

In both October and July, the temperatures remain relatively similar, with July experiencing slightly higher minimum temperatures at 14°C (57°F) compared to October's 13°C (55°F). Both months have an average temperature of around 18°C (65°F) and a maximum of 24°C (76°F). However, October is noticeably wetter, with a significant increase in precipitation, totaling 601 mm (23.7 in) over 30 days, compared to July's 315 mm (12.4 in) over 28 days. Additionally, humidity levels are somewhat higher in July at 85%, as opposed to October's 80%. For more specific insights on July weather, you can explore Cartago weather in July.

In comparing the weather of October and August, we observe some notable differences. October experiences slightly lower minimum and maximum temperatures, ranging from 13°C (55°F) to 24°C (76°F), while August sees temperatures from 14°C (57°F) to 25°C (78°F). Precipitation levels are significantly higher in October, with 601 mm (23.7 in) compared to 403 mm (15.9 in) in August, indicating that October tends to be wetter. Both months have similar average temperatures; however, October's increased humidity level at 80% compared to August's 82% contributes to a muggy feeling. For a more detailed look at August weather, you can check this link: Cartago weather in August.

In comparing the weather of October and September, October presents slightly cooler temperatures overall, with a minimum of 13°C (55°F) compared to September's 14°C (57°F). Both months maintain a similar average of around 18°C (64°F), but September tends to reach a higher maximum temperature of 25°C (77°F) versus October's 24°C (76°F). A significant difference lies in precipitation, as October experiences more rainfall with 601 mm (23.7 in), while September records 508 mm (20.0 in) over the same number of days. Humidity remains consistent across both months, hovering around 80% in October and 81% in September. For more detailed insights on September weather, you can refer to Cartago weather in September.

In October, the weather features a minimum temperature of 13°C (55°F) and an average temperature of 18°C (64°F), peaking at a maximum of 24°C (76°F). The month is characterized by high precipitation, with 601 mm (23.7 in) of rain falling over 30 days, contributing to a humidity level of 80%.

In contrast, November maintains similar temperatures, with a minimum of 13°C (56°F), an average of 18°C (64°F), and a maximum of 24°C (75°F). However, it sees significantly less rainfall, totaling 272 mm (10.7 in) over 26 days, while still keeping the humidity at 80%.

For more details on the weather conditions, check out Cartago weather in November.

October and December exhibit notable differences in weather patterns. In October, the temperatures range from a minimum of 13°C (55°F) to a maximum of 24°C (76°F), with an average of 18°C (64°F). This month is characterized by high humidity at 80% and significant rainfall, accumulating 601 mm (23.7 in) over 30 days. In contrast, December sees only a slight drop in temperature, with a minimum of 12°C (54°F) and a maximum of 24°C (75°F), averaging at 17°C (64°F). The month is much drier, receiving just 78 mm (3.1 in) of precipitation over 11 days and lower humidity at 72%. For more detailed information, check out Cartago weather in December.

Compare Cartago's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Cartago

As October unfolds in Cartago, the weather stands out from the rest of the year with its cooler temperatures and frequent rain. With average highs of 18°C, this month brings a refreshing chill, making it ideal for cozy indoor activities or enjoying the lush, green landscapes that flourish under the 80% humidity. This month sees intense rainfall, with over 600 mm spread across the 30 days, transforming the region into a vibrant tapestry of colors. The contrast to the drier months is striking, as the lush scenery, invigorated by constant showers, invites exploration and a deeper appreciation for Cartago's natural beauty. For a comprehensive overview of what to expect, check out Cartago Climate.