Weather forecast for todayFortuna, Costa Rica

Weather forecast for today

Current condition 04:54 CST

  • 23°C
  • Feels like:
    23°C
Cloudy
Cloudy
  • Precipitation: 0mm
  • Wind: 5km/hENE 70°
  • Humidity: 94%
  • Dewpoint: 23°C
  • Pressure: 1010.16mbar
  • Visibility: 9.66km
  • UV index: 0
  • ▼
In Fortuna, currently, the horizon is coated in dense cloud cover, keeping the day gray.
The temperature is a moderately hot 23°C. The present temperature is at its lowest of the day.

Tuesday 20. Oct 2026

  • 29°C
  • 23°C
Thunderstorms
Thunderstorms
  • Precip. probability: 87%
  • Precipitation: 13mm
  • Wind: 17km/hE 82°
  • Humidity: 85%
  • UV index: 9
  • Sunrise: 05:27 CST
  • Sunset: 17:18 CST
  • ▼
On Tuesday, in Fortuna, storm clouds are expected to develop.
With a high probability, moderate precipitation is forecasted for today. Temperature is anticipated to swing from a high of a moderately hot 29°C to a low of a warm 23°C.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is assessed at a fiery hot 36°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Expect temperatures to reach October's average high of 29°C.
Sunrise will be at 05:27 and sunset at 17:18; the daylight will last for 11h and 52min.

Hourly overview

Hourly temperatures

Warmest period: 11h - 13h 33°C.
Coldest hour: 5h 24°C.

Chance of precipitation

Highest chance: 13h - 15h 87%.

Hourly weather forecast

Sunrise: 05:27
  • 6h
  • 24°C
  • Feels like:
    24°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0mm
  • Wind: 7km/hE 91°
  • Humidity: 92%
  • Pressure: 1010mbar
  • Visibility: 9km
  • UV index: 0
  • ▼
  • 8h
  • 26°C
  • Feels like:
    29°C
Cloudy
Cloudy
  • Precip. probability: 16%
  • Precipitation: 0mm
  • Wind: 10km/hE 94°
  • Humidity: 85%
  • Pressure: 1011mbar
  • Visibility: 9km
  • UV index: 2
  • ▼
  • 10h
  • 28°C
  • Feels like:
    32°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0mm
  • Wind: 12km/hE 94°
  • Humidity: 78%
  • Pressure: 1011mbar
  • Visibility: 14km
  • UV index: 9
  • ▼
  • 12h
  • 29°C
  • Feels like:
    34°C
Thunderstorms
Thunderstorms
  • Precip. probability: 83%
  • Precipitation: 2mm
  • Wind: 16km/hWNW 298°
  • Humidity: 76%
  • Pressure: 1009mbar
  • Visibility: 10km
  • UV index: 6
  • ▼
  • 14h
  • 27°C
  • Feels like:
    31°C
Thunderstorms
Thunderstorms
  • Precip. probability: 85%
  • Precipitation: 3mm
  • Wind: 15km/hNW 308°
  • Humidity: 84%
  • Pressure: 1009mbar
  • Visibility: 6km
  • UV index: 1
  • ▼
  • 16h
  • 26°C
  • Feels like:
    29°C
Thunderstorms
Thunderstorms
  • Precip. probability: 86%
  • Precipitation: 2mm
  • Wind: 9km/hE 94°
  • Humidity: 89%
  • Pressure: 1009mbar
  • Visibility: 7km
  • UV index: 0
  • ▼
Sunset: 17:18
  • 18h
  • 25°C
  • Feels like:
    28°C
Showers
Showers
  • Precip. probability: 69%
  • Precipitation: 1mm
  • Wind: 7km/hE 96°
  • Humidity: 91%
  • Pressure: 1010mbar
  • Visibility: 5km
  • UV index: 0
  • ▼
  • 20h
  • 25°C
  • Feels like:
    28°C
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 7km/hESE 103°
  • Humidity: 91%
  • Pressure: 1012mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
  • 22h
  • 25°C
  • Feels like:
    27°C
Cloudy
Cloudy
  • Precip. probability: 15%
  • Precipitation: 0mm
  • Wind: 5km/hE 100°
  • Humidity: 90%
  • Pressure: 1012mbar
  • Visibility: 12km
  • UV index: 0
  • ▼
Today, in Fortuna, a combination of overcast, storm-filled and showery weather is predicted.
Rainfall is expected from 11h to 19h. With moderate precipitation of 4mm, most rainfall is expected at 13h.
The temperature will vary between the lowest temperature of 24°C and the highest temperature of 29°C. The feels-like temperature will vary between the highest temperature of 34°C and the lowest temperature of 24°C. The hottest part of the day will be at 11h and 12h.
The forecasted high will be similar to the typical October maximum of 29°C. The expected low will be also alike with the average minimum in October, which is 21°C.
Updated: Oct 20, 2026 @ 10:54:59 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 04:54 CST is 23°C.

On Tuesday, unstable skies bring the chance of thunderstorms.

Moderate precipitation of 13mm is anticipated. The chance of rainfall is high at 87%.

Today, the maximum temperature will be 29°C, while the minimum temperature will be 23°C. The maximum heat index, which measures the combined effect of heat and moisture, is computed to be 36°C.
The highest temperature will be in line with the average maximum of 29°C in October. The lowest temperature will be also in line with the average low of 21°C.

On Tuesday, in Fortuna, sunrise will be at 05:27 and sunset at 17:18 (CST).

In Fortuna, the length of the day today will be 11h and 52min.