October weather forecast
Portete, Costa Rica

October, like September, in Portete, Costa Rica, is a moderately hot autumn month, with an average temperature varying between 25.1°C (77.2°F) and 29.6°C (85.3°F).

Temperature

October is marked by an average high-temperature of a moderately hot 29.6°C (85.3°F), almost identical to the preceding month. The temperature during October experiences a small drop from daytime peaks, recording an average of 25.1°C (77.2°F) at night.

Heat index

October's mean heat index is computed to be a sweltering 35°C (95°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In October, the average relative humidity is 72%.

Rainfall

In Portete, in October, it is raining for 21.6 days, with typically 132mm (5.2") of accumulated precipitation. Throughout the year, there are 241.5 rainfall days, and 1580mm (62.2") of precipitation is accumulated.

Daylight

The average length of the day in October in Portete is 11h and 54min.
On the first day of the month, sunrise is at 05:20 and sunset at 17:22. On the last day of October, sunrise is at 05:22 and sunset at 17:09 CST.

Sunshine

In October, the average sunshine is 8.8h.

UV index

March through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during October leads to these advisories:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.