San Isidro Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in San Isidro

San Isidro temperature today is 29°, feels like 33°, with a humidity level of 79% and wind at 16.67 km/h. Rain chance today is 24%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in San Isidro: expect a high of 32° and a low of 27°, with light rain. Rain chance tomorrow is 71%.

overcast clouds
29°
overcast clouds
H: 30° L: 28°
Feels like 33°
AQI: Fair (2/5)
Humidity
79%
Dew 25°
Wind speed
16.67 km/h
E
Pressure
1016 hPa
Visibility
10 km
Windy Conditions
Wind speed is 16.67 km/h.
Weather Summary
Currently in San Isidro, expect varied conditions with hot temperatures around 29°, though it feels warmer. Winds are moderate winds. Stay hydrated and seek shade during peak hours.
Precipitation Probability
24%
11
59%
14
30%
17
34%
20
11%
23
21%
02
31%
05
26%
08
66%
11
71%
14
20%
17
2%
20
13%
23
0%
02
0%
05
0%
08
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
31°
Wed
11:00
30°
 
29°
 
27°
 
27°
Wed
23:00
27°
 
27°
 
28°
 
31°
Thu
11:00
32°
 
30°
 
28°
 
28°
Thu
23:00
27°
 
27°
 
29°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:11
Sunset
Sunset
18:25
Moon Phase
Waxing Crescent (23%)
Timezone: GMT+05:30
Last updated: Sep 16, 2026 5:35 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
18.392170
Longitude
Longitude
-65.885437
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More about San Isidro
Content curated by the NearWeather editorial team · Updated periodically

San Isidro, Puerto Rico: Climate and Weather Overview

San Isidro is a small town located in the northern part of Puerto Rico. The region experiences a tropical monsoon climate, characterized by warm temperatures, high humidity, and distinct wet and dry seasons. Understanding the climate and weather patterns in San Isidro is essential for residents, tourists, and businesses operating in the area. Let's explore the year-round climate and weather conditions in San Isidro, PR in detail.

Annual Temperature and Weather Patterns

The annual temperature in San Isidro typically ranges between 75°F and 85°F, with relatively minor fluctuations throughout the year. The hottest months are usually June through August, with temperatures occasionally reaching the low 90s. The coolest period occurs from December to February when temperatures can drop to the mid-70s. Overall, San Isidro maintains a consistently warm climate suitable for outdoor activities and tourism throughout the year.

Furthermore, the region experiences distinct wet and dry seasons. The wet season generally extends from May to October, with June to November being the months with the highest rainfall. On the other hand, the dry season occurs from December to April, with significantly lower precipitation levels. The weather patterns align closely with the tropical monsoon climate prevalent in the area.

Precipitation and Humidity Levels

San Isidro receives an average annual rainfall of approximately 60 inches, with variations depending on the specific location within the town. The wet season often brings heavy downpours and occasional thunderstorms, contributing to the lush, green landscapes and vibrant vegetation characteristic of the region. In contrast, the dry season experiences significantly reduced rainfall, and occasional drought conditions may occur, impacting local agriculture and water resources.

The humidity in San Isidro remains relatively high year-round, averaging around 80% due to its coastal proximity and tropical climate. This level of humidity contributes to the lush, diverse flora and fauna found in the area, making it an attractive destination for nature enthusiasts and ecotourism.

Extreme Weather Events

While San Isidro generally enjoys favorable weather conditions, it is important to note the potential for extreme weather events, particularly during the Atlantic hurricane season. From June to November, the region is susceptible to tropical storms and hurricanes, which can bring heavy rainfall, strong winds, and coastal flooding. It is essential for residents and visitors to stay informed about hurricane preparedness and evacuation procedures during this period.

Seasonal Activities and Tourism

The climate and weather in San Isidro create an inviting environment for various outdoor activities and tourism. The warm temperatures and abundant sunshine year-round make it an ideal destination for beachgoers, hikers, and water sports enthusiasts. The diverse flora and fauna, influenced by the tropical climate, also attract nature lovers and birdwatchers to explore the region's natural beauty.

Additionally, the distinct wet and dry seasons offer unique experiences for visitors. The wet season showcases the lush, verdant landscapes and stunning waterfalls, while the dry season provides opportunities for exploring historical sites and engaging in cultural events without the interruption of heavy rainfall.

Conclusion

In conclusion, San Isidro, Puerto Rico, maintains a tropical monsoon climate with warm temperatures, distinct wet and dry seasons, and high humidity levels year-round. Understanding the climate and weather patterns is crucial for residents, businesses, and tourists to make informed decisions regarding outdoor activities, agriculture, and preparedness for extreme weather events. The region's natural beauty and diverse ecosystems, influenced by its climate, make San Isidro an appealing destination for individuals seeking a tropical experience in a unique cultural setting.

Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about San Isidro
What is the temperature in San Isidro right now?

The current temperature in San Isidro is 29°, and it feels like 33°. Today's high is 30° and the low is 28°.

Will it rain in San Isidro today?

The chance of rain in San Isidro today is 24%. Check the hourly forecast above for exact timing.

What is the weather in San Isidro today?

San Isidro is experiencing overcast clouds with a temperature of 29°. Humidity is at 79% and wind speed is 16.67 km/h from the E.

What is the humidity in San Isidro today?

Humidity in San Isidro is 79% right now, with a dew point of 25°. Comfort levels are moderate.

What is the wind speed in San Isidro today?

Wind speed in San Isidro is 16.67 km/h, flowing at 90° E wind direction.

What is the 5-day forecast for San Isidro?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for San Isidro. Today's high is 30° and low is 28°, with a 24% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in San Isidro today?

It feels like 33° in San Isidro today, with 92% cloud cover and 10 km visibility.

Weather in San Isidro