San José
Costa Rica
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
San José, Costa Rica

An aerial skyscape of San José, Costa Rica in the evening sun
An aerial skyscape of San José, Costa Rica in the evening sun
October, the same as September, is a moderately hot autumn month in San José, Costa Rica, with average temperature fluctuating between 26.5°C (79.7°F) and 18.2°C (64.8°F).

Temperature

In San José, Costa Rica, the average high-temperature is practically the same as in September - a still warm 26.5°C (79.7°F). In San José, the average low-temperature is 18.2°C (64.8°F).

Rainfall

In San José, Costa Rica, in October, it is raining for 17 days, with typically 330.6mm (13") of accumulated precipitation. Throughout the year, in San José, Costa Rica, there are 107 rainfall days, and 1971mm (77.6") of precipitation is accumulated.

Daylight

In San José, the average length of the day is 11.9h.

Sunshine

The average sunshine in San José is 5.2h.

UV index

Months with the highest UV index in San José are February through October, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from the exposure to the Sun's UV rays for average individuals.
The average daily UV index of 12 in October transform into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in October in San José?

In October, the average high-temperature is 26.5°C (79.7°F), and the average low-temperature is 18.2°C (64.8°F).

How many days does it rain in October in San José?

In San José, Costa Rica, during October, the rain falls for 17 days and regularly aggregates up to 330.6mm (13") of precipitation.

How many hours of daylight does San José have in October?

In San José, the average length of the day in October is 11.9h.

How many hours of sunshine does San José have in October?

The average sunshine in October in San José, Costa Rica, is 5.2h.

When is the highest UV index in San José?

Months with the highest UV index in San José are February through October, with an average maximum UV index of 12.

What is the UV index reading in October in San José?

In October, the average daily maximum UV index is 12. A UV Index reading of 11, and higher, represents an extreme health vulnerability from unprotected exposure to the UV radiation.
Average temperature in October - San José, Costa Rica
  • Average high temperature in October: 26.5°C

The warmest month (with the highest average high temperature) is April (28.4°C).
The month with the lowest average high temperature is December (25.9°C).

  • Average low temperature in October: 18.2°C

Months with the highest average low temperature are May and July (19°C).
The coldest month (with the lowest average low temperature) is January (17.8°C).

Average rainfall in October - San José, Costa Rica
  • Average rainfall in October: 330.6mm

The wettest month (with the highest rainfall) is September (355.1mm).
The driest month (with the lowest rainfall) is January (6.3mm).

Average rainfall days in October - San José, Costa Rica
  • Average rainfall days in October: 17 days

The month with the highest number of rainy days is September (18 days).
Months with the lowest number of rainy days are January and February (1 days).

Average daylight in October / Average sunshine in October - San José, Costa Rica
  • Average daylight in October: 11.9h

The month with the longest days is June (Average daylight: 12.7h).
Months with shortest days are January and December (Average daylight: 11.6h).

  • Average sunshine in October: 5.2h

The month with most sunshine is February (Average sunshine: 9.5h).
The month with least sunshine is June (Average sunshine: 4.8h).

Average UV index in October - San José, Costa Rica
  • Average UV index in October: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).