October Weather in Rio Segundo, Costa Rica

Last updated: August 23, 2025

In Rio Segundo, Costa Rica, the average temperature in October hovers around a pleasant 21°C (69°F). Expect lows of 16°C (61°F) and highs of 27°C (81°F), creating a comfortable climate. However, be prepared for some rain, as the area receives an average precipitation of 402 mm (15.8 in) over 30 days. With an average humidity level of 82%, the atmosphere can feel quite lush and vibrant.

October Temperature in Rio Segundo

In October in Rio Segundo, the average temperature is 21°C (69°F). Maximums can reach 27°C (81°F) and minimums can be as low as 16°C (61°F). This pleasant weather makes it an ideal time for outdoor activities and exploration.

October Weather in Rio Segundo: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Rio Segundo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Segundo, October typically has an average temperature of 21°C (69°F), with highs reaching up to 27°C (81°F) and lows dropping to around 16°C (61°F).

Data source: Temperature data for Rio Segundo generated using information from the Copernicus Climate Change Service.

October Precipitation in Rio Segundo

In Rio Segundo in October, the total precipitation amount is 402 mm (15.8 in) over the course of 30 days.

October Precipitation Trends in Rio Segundo

The chart displays monthly precipitation patterns in Rio Segundo, 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 Rio Segundo, October typically receives around 402 mm (15.8 inches) of precipitation spread over approximately 30 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

October Humidity in Rio Segundo

In Rio Segundo in October humidity is 82%. With an average temperature of 21°C (69°F), this humidity feels like a sweltering embrace, making outdoor activities feel more strenuous and prompting travelers to seek shade and cooling breezes.

October Average Humidity in Rio Segundo

This chart illustrates the average monthly humidity levels in Rio Segundo, 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 Rio Segundo is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Rio Segundo

In Rio Segundo in October, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Rio Segundo, you can check here.

Maximum UV Index Levels in Rio Segundo for October

The chart shows the monthly maximum UV Index (UVI) for Rio Segundo 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 Rio Segundo typically reaches 14, which falls under the extreme exposure category.

Data source: Rio Segundo 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.

How October Weather in Rio Segundo Compares to Other Months

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

This table compares monthly weather conditions in Rio Segundo, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (66°F)	109 mm (4.3 inches)	71%	extreme
February Weather	19°C (66°F)	48 mm (1.9 inches)	70%	extreme
March Weather	19°C (67°F)	57 mm (2.2 inches)	68%	extreme
April Weather	21°C (69°F)	113 mm (4.5 inches)	69%	extreme
May Weather	21°C (70°F)	310 mm (12.2 inches)	70%	extreme
June Weather	21°C (70°F)	275 mm (10.8 inches)	81%	extreme
July Weather	21°C (69°F)	275 mm (10.8 inches)	88%	extreme
August Weather	21°C (70°F)	273 mm (10.7 inches)	85%	extreme
September Weather	21°C (70°F)	287 mm (11.3 inches)	84%	extreme
October Weather	21°C (69°F)	402 mm (15.8 inches)	82%	extreme
November Weather	20°C (68°F)	272 mm (10.7 inches)	81%	extreme
December Weather	19°C (67°F)	192 mm (7.6 inches)	74%	very high