Last updated: August 21, 2025
October in Nicoya, Costa Rica is characterized by a warm and humid climate, with maximum temperatures reaching up to 33°C (92°F) and an average of 26°C (79°F). As the wet season peaks, precipitation amounts soar to 407 mm (16.0 in), falling over a remarkable 29 days throughout the month, resulting in a lush, vibrant landscape. With a humidity level hovering around 79%, visitors can expect a tropical atmosphere filled with the sounds of nature and the allure of flourishing greenery, making it an enchanting time to experience the natural beauty of this coastal paradise.
In October, Nicoya, Costa Rica, experiences a mild climate as temperatures begin to cool slightly from the peak heat of earlier months. With minimums around 21°C (71°F) and an average temperature of 26°C (79°F), the weather provides a comfortable backdrop for exploration. The maximums cap at 33°C (92°F), a decline from the sweltering highs seen in April and May. This month signals a transition, with humidity levels often rising and the likelihood of rain increasing, enriching the landscape's lush greenery. Thus, October presents a delightful blend of warmth and refreshment, making it an appealing time for visitors to enjoy Nicoya's natural beauty and vibrant culture.
In October, Nicoya, Costa Rica, experiences its peak precipitation, with 407 mm (16.0 in) of rain falling over an impressive 29 days. This significant rainfall marks a culmination of the wet season, showcasing a sharp increase from the preceding months. Following a steady rise from 353 mm in September to October's peak, it's clear that as the year progresses, the region transitions from moderate rains in the earlier months to the heavy downpours that define October. In contrast to the drier beginnings of the year, where precipitation barely registered, October emphasizes the lush, tropical climate of Nicoya, offering vibrant greenery and a refreshing atmosphere. The consistent rainfall not only revitalizes the landscape but also prepares the region for the gradual tapering of rains that follows in November and December.
In October, Nicoya, Costa Rica, experiences a notable shift in humidity, maintaining an average of 79%. This level is slightly lower than the peak humidity of 85% seen in July, yet it still reflects the region's characteristic tropical climate. The trend throughout the year reveals that after a gradual increase starting in June, humidity remains quite high through the wet months of August and September, before stabilizing in October. As the rainy season wanes and November approaches, humidity stays consistent at 79%, suggesting a transition towards drier conditions ahead. Overall, the month serves as a bridge, where the lingering humidity continues to embody the lush vitality of this coastal paradise while hinting at the more temperate months to come.
In October, Nicoya, Costa Rica experiences a UV Index of 13, categorizing it as extreme exposure with a rapid burn time of just 10 minutes. This month continues the trend of intense UV levels seen since January, where the index peaked at 14. Both September and October maintain similarly high values, indicating that the region remains under significant sun intensity as the rainy season transitions towards the dry months. Travelers and locals alike should take necessary precautions during these sunny spells to protect against harmful UV rays. For more detailed information on the UV Index, visit Nicoya UV Index.
UV Risk Categories
October in Nicoya, Costa Rica, marks a subtle transition as the month welcomes shorter days with an average of 245 sunshine hours. While this is a dip compared to the vibrant sunshine of preceding months—like 334 hours in March and 324 hours in April—the warm hues of the Nicoya peninsula continue to charm visitors. As the rainy season gradually recedes, October still offers a delightful blend of lush landscapes and occasional sunny interludes, encouraging outdoor explorations amidst an atmosphere rich with nature's renewal. This month serves as a gentle reminder of the ebb and flow of sunshine, paving the way for the brighter days ahead in November, when the sun reclaims its supremacy with 296 hours of light.
In Nicoya, Costa Rica, the likelihood of sunny weather takes a notable dip in October, with only a 19% chance of clear skies. This marks a stark contrast to the sunnier months like January and February, which enjoy probabilities soaring above 60%. As Costa Rica transitions from the dry season to the wet season, sunshine becomes increasingly scarce, mirroring patterns seen in previous months such as September with a mere 13% chance. The trend shows a gradual decline in sunlit days as October unfolds, reinforcing the idea that while the region may not be drenched in sunshine this time of year, it still offers the lush, vibrant landscapes characteristic of the rainy season.
In October, Nicoya, Costa Rica experiences a slight decrease in daylight, offering 11 hours of sunlight each day. This shift marks a transition from the longer days of the preceding months, where the region enjoys 12 hours of daylight from March through September. The trend reveals a consistent pattern throughout the year, with equal daylight in January and February and a gradual return to shorter days as the year winds down into November and December. October serves as a gentle reminder of the cyclical nature of daylight, paving the way for the cozy, shorter days of the upcoming months.
As October envelops Nicoya, Costa Rica, the calmness sets in with an average wind speed of just 1.2 m/s (3 mph), making it one of the stillest months of the year. Following the lively breezes of March at 4.0 m/s (9 mph), the winds gradually wane during the rainy season, reaching their lowest point in October. This tranquil ambiance contrasts sharply with the gusty beginnings of the year, showcasing a clear trend: as the seasons shift from the vibrant winds of early months to the softer, whispering breezes of late in the year, the allure of Nicoya becomes a symphony of serenity, inviting visitors to savor its peaceful charm.
Weather in Nicoya varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Nicoya, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present contrasting weather patterns, particularly in terms of temperature and precipitation. In October, temperatures range from a minimum of 21°C (71°F) to a maximum of 33°C (92°F), with an average of 26°C (79°F). During this month, the region experiences significant rainfall, totaling 407 mm (16.0 in) spread over 29 days, contributing to a high humidity level of 79%. In contrast, January features slightly cooler temperatures, with a minimum of 17°C (64°F) and a maximum of 36°C (97°F), alongside a comfortable average of 27°C (81°F). January also sees drastically reduced rainfall, with only 12 mm (0.5 in) over just 2 days and a lower humidity of 66%. For more information about January weather specifically, check out Nicoya weather in January.
When comparing the weather in October and February, there are notable differences in temperature, precipitation, and humidity. In October, temperatures range from a minimum of 21°C (71°F) to a maximum of 33°C (92°F), with an average of 26°C (79°F). The month is characterized by significant rainfall, receiving 407 mm (16.0 in) over 29 days, along with high humidity at 79%. In contrast, February boasts warmer temperatures, with a minimum of 19°C (66°F) and a peak of 37°C (99°F), averaging at 28°C (82°F). Remarkably, February experiences little to no rainfall, with only 2 mm (0.1 in) and no rainy days, coupled with lower humidity at 64%. For more specifics on February weather, visit Nicoya weather in February.
In comparing October and March weather, it's evident that October is characterized by higher humidity and significantly more rainfall, with an average precipitation of 407 mm over 29 days and a muggy atmosphere, featuring a typical temperature range from 21°C to 33°C (71°F to 92°F). Conversely, March enjoys a drier climate with no recorded precipitation, lower humidity at 63%, and warmer average temperatures peaking at a maximum of 37°C (99°F), while maintaining a comfortable minimum of 20°C (69°F). For more detailed insights, you can visit Nicoya weather in March.
When comparing the weather in October and April, notable differences emerge. October features a temperature range from a minimum of 21°C (71°F) to a maximum of 33°C (92°F) with an average of 26°C (79°F). This month also sees significant rainfall, totaling 407 mm (16.0 in) over 29 days, accompanied by high humidity at 79%. In contrast, April experiences warmer temperatures, with a minimum of 22°C (71°F) and a maximum that can reach 39°C (102°F), averaging 29°C (84°F). April's precipitation is considerably lower at 51 mm (2.0 in) spread across just 9 days, and the humidity is more comfortable at 63%. For further details on April weather, you can visit Nicoya weather in April.
In comparing the weather of October and May, October tends to be slightly cooler, with average temperatures ranging from a minimum of 21°C (71°F) to a maximum of 33°C (92°F). In contrast, May boasts higher temperatures, with a minimum of 23°C (73°F) and a maximum reaching up to 38°C (101°F). October is characterized by significant rainfall, accumulating 407 mm (16.0 in) over 29 days, alongside higher humidity levels of 79%. Meanwhile, May experiences less precipitation, totaling 286 mm (11.2 in) over 22 days, and a lower humidity of 63%. For more detailed insights, you can visit Nicoya weather in May.
When comparing the weather in October and June, October features slightly warmer temperatures, with an average of 26°C (79°F) compared to June's 27°C (80°F). However, June boasts a higher maximum temperature of 36°C (97°F), making it the hotter month overall. In terms of precipitation, October experiences more rainfall, totaling 407 mm (16.0 in) over 29 days, while June has 359 mm (14.1 in) spread over 26 days. Additionally, October has a higher humidity level at 79%, compared to June's 74%. For a more detailed look at weather patterns during this time, you can visit Nicoya weather in June.
When comparing the weather in October and July, we can observe some notable differences. In October, the average temperature is slightly lower at 26°C (79°F), with maximum temperatures reaching 33°C (92°F), while July boasts an average of 27°C (80°F) and maxima up to 35°C (95°F). Precipitation levels are significantly higher in October, with 407 mm (16.0 in) over 29 days, compared to July's 215 mm (8.4 in) over 23 days. Additionally, October has a humidity level of 79%, slightly lower than July's 85%, which contributes to a more comfortable experience despite the higher rainfall. For more specifics about the weather patterns, you can refer to Nicoya weather in July.
When comparing the weather in October and August, there are some notable differences despite overall similar temperatures. In October, the minimum temperature hovers at 21°C (71°F), with an average of 26°C (79°F) and a maximum of 33°C (92°F), while August presents a slightly higher minimum of 22°C (71°F) and a peak of 35°C (95°F). Precipitation also increases in October, with 407 mm (16.0 in) over 29 days, compared to August’s 290 mm (11.4 in) across 25 days. Additionally, October maintains a humidity level of 79%, slightly lower than August's 82%. For more detailed information about the weather in August, you can check Nicoya weather in August.
In comparing the weather between September and October, we notice that both months feature warm temperatures, with October experiencing slightly lower minimum and maximum temperatures. Specifically, October's temperatures range from a minimum of 21°C (71°F) to a maximum of 33°C (92°F), while September has a minimum of 22°C (71°F) and a maximum of 34°C (93°F). Precipitation in October rises to 407 mm (16.0 in) over 29 days, which is an increase from September's 353 mm (13.9 in) over 28 days. The humidity remains fairly consistent, with October at 79% and September at 80%. For more details on how September weather might affect your plans, you can check out Nicoya weather in September.
In comparing the weather from October to November, both months maintain a similar average temperature of 26°C (79°F), with maximums reaching up to 33°C (92°F) in October and slightly higher at 33°C (93°F) in November. However, October is characterized by significantly higher precipitation, with 407 mm (16.0 in) spread over 29 days, compared to November's 130 mm (5.1 in) over just 15 days. The humidity remains consistent at 79% for both months, but the drier conditions in November make it feel more comfortable overall. For more details on November weather in Nicoya, check out Nicoya weather in November.
October and December present distinctly different weather patterns. In October, temperatures range from a minimum of 21°C (71°F) to a maximum of 33°C (92°F), with an average of 26°C (79°F). This month experiences significant rainfall, totaling 407 mm (16.0 in) over 29 days, resulting in a high humidity level of 79%. In contrast, December typically sees slightly warmer temperatures, with a minimum of 20°C (69°F) and a maximum of 35°C (95°F), while maintaining an average of 27°C (80°F). Notably, December is much drier, with only 31 mm (1.2 in) of precipitation occurring over just four days, and a reduced humidity of 70%. For more detailed information, you can check Nicoya weather in December.
As October unfolds in Nicoya, the weather offers a unique mix that sets it apart from the rest of the year. With temperatures averaging around 26°C, this month brings cooler evenings, but the high daytime warmth can reach up to 33°C. The air is rich with humidity at 79%, which, combined with nearly a month's worth of rainfall, creates a lush, vibrant landscape. Unlike drier months, October frequently greets visitors with rainy days, making it a time for rejuvenation in nature. For a deeper insight into the seasonal nuances of this captivating region, explore our guide on Nicoya Climate.