Caguas Climate

Last updated: January 18, 2025

Caguas, Puerto Rico, exhibits a tropical rainforest climate classified under the Köppen-Geiger system as Am. This region experiences a dynamic temperature range throughout the year, with minimum averages around 19°C (66°F) in January, peaking at a warm 32°C (90°F) during September. The annual average temperature settles at a comfortable 26°C (78°F), contributing to the lush biodiversity and vibrant ecosystems that characterize this enchanting locale. Understanding the climatic patterns of Caguas is essential for appreciating its unique environmental features and agricultural potential.

Caguas temperature by month

Caguas, Puerto Rico, showcases a warm tropical climate marked by consistent temperatures throughout the year. The coldest month, January, sees minimums around 19°C (66°F) and average highs of 29°C (84°F), gradually giving way to warmer trends as spring approaches. By May, temperatures begin to rise significantly, with minimums recorded at 22°C (72°F) and maximums reaching 31°C (87°F). The summer months of June through September maintain elevated averages of 27°C (81°F), peaking in September with highs of 32°C (90°F). As the year transitions into fall, temperatures slightly decrease, with averages settling between 25°C (77°F) and 26°C (79°F) from November to December, illustrating a subtle but distinct seasonal shift in this tropical paradise.

Monthly Temperatures in Caguas, Puerto Rico

The chart illustrates Caguas's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec757575777980818181807877
Data source: Caguas temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

Caguas and Bairoa experience similar temperature ranges throughout the year, with January minimums around 19°C (66°F) and maximums peaking at 32°C (90°F) in September. For more detailed information, you can explore the monthly temperatures in Caguas here and in Bairoa here.

Precipitation Patterns in Caguas

Caguas, Puerto Rico, experiences a varied precipitation pattern throughout the year, with significant rainfall primarily concentrated in the warmer months. January starts the year with a modest 48 mm (1.9 in) of rain across approximately 16 days, gradually increasing to 99 mm (3.9 in) in June. The onset of summer brings heightened precipitation, with July and August seeing substantial rainfall, accumulating 124 mm (4.9 in) and 130 mm (5.1 in), respectively. This trend culminates in September, the wettest month, where 200 mm (7.9 in) of rain falls over 27 days, highlighting a peak in both precipitation and frequency.

As the rainy season continues into the fall, October maintains a high level of moisture at 183 mm (7.2 in), followed by a slight decrease in November to 120 mm (4.7 in). By December, precipitation tapers off to 66 mm (2.6 in), marking the end of a wet cycle. Throughout the year, the cumulative rainfall significantly nourishes the lush landscapes of Caguas, making it a vibrant ecosystem. The distinct wet season profoundly shapes the region's climate, influencing agriculture and water resources critical to the local community.

Monthly Average Precipitation in Caguas, Puerto Rico

The average monthly precipitation in Caguas, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec485380779810012413020018312066
Data source: Caguas precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred precipitation unit

Sunshine Duration in Caguas

Caguas, Puerto Rico, experiences a distinct seasonal pattern in sunshine duration, showcasing a steady increase in sunlight hours from winter to summer. Starting with 257 hours in January, the months transition into brighter conditions, culminating in May, which enjoys the peak sunshine at 356 hours. This upward trend continues through the summer months, with June and July receiving an impressive 343 hours and 353 hours, respectively. The consistent availability of sunlight during this period not only enhances the region's tropical climate but also fosters vibrant agricultural activities.

As the year progresses into fall and winter, sunshine hours begin to stabilize, with September and October recording 313 hours each. While these figures are slightly lower than the summer peak, they still provide ample sunshine for the lush landscapes of Caguas. Subsequently, November sees a decrease to 299 hours, and December experiences a modest uptick to 319 hours, offering a gentle transition back into the winter months. Overall, the sunshine duration in Caguas reflects not only the region’s inviting climate but also the potential for outdoor activities and agricultural productivity year-round.

Monthly Sunshine in Caguas, Puerto Rico

Monthly sunshine duration represents the total hours of direct sunlight Caguas receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec257h303h346h346h356h343h353h349h313h313h299h319h
Data source: Caguas sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Caguas UV Index Trends

Caguas, Puerto Rico, consistently faces high levels of ultraviolet (UV) radiation throughout the year, reflected in its UV Index readings. Starting at 9 in January, which falls into the very high exposure category, the UV Index escalates sharply from February to May, peaking at 14 in May under the extreme exposure category. This trend indicates a significant need for sun protection during these months, as the potential for sunburn occurs in as little as 10 minutes of unprotected exposure. The high UV levels during spring and summer underscore the importance of utilizing protective measures, such as sunscreen, hats, and sunglasses.

As summer transitions into fall, the UV Index remains elevated, with readings around 12 to 13 from June through October. Even with slight fluctuations, the burn time remains critically low at 10 minutes, indicating sustained risks associated with sun exposure. By November, the UV Index decreases to 9, marking a return to the very high exposure category, while December further diminishes to 8. Although the sunlight may not seem as intense during the latter months, caution is still warranted, as UV radiation can cause harm year-round, particularly in tropical regions like Caguas.

Monthly Maximum UV Index for Caguas, Puerto Rico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Caguas. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131213131298
Data source: Caguas UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

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.

Daylight Hours in Caguas

Caguas, Puerto Rico, showcases a relatively consistent pattern of daylight duration throughout the year, reflecting the region's tropical climate. During the winter months of January and February, daylight is stable at 11 hours, providing ample light for daily activities. As the spring approaches in March, daylight begins to extend to 12 hours, a duration that remains steady through April and May. This gradual increase highlights the transition into warmer months, making the longer days conducive for outdoor pursuits and enhancing the region's appeal for both locals and tourists.

As summer arrives in June and July, daylight peaks at 13 hours, offering an abundance of sunlight for various recreational and agricultural activities. However, this extended daylight is followed by a slight reduction back to 12 hours in August and September. Once autumn arrives in October, daylight returns to 11 hours, continuing this pattern through the cooler months of November and December. Overall, the relatively stable daylight duration in Caguas ensures that residents and visitors can enjoy year-round opportunities for engagement with the vibrant landscape and community.

Average Monthly Daylight Hours in Caguas, Puerto Rico

This chart shows the total daylight hours Caguas receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec669h692h722h753h779h791h784h762h732h702h675h662h
Data source: Caguas daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Caguas's Popular Destinations

Bairoa, Puerto Rico, features a tropical climate characterized by warm temperatures year-round, with averages ranging from 24°C (76°F) in January to 27°C (81°F) from June to October. The region experiences its highest rainfall in September, with about 200 mm (7.9 in), while December sees the least rain at 66 mm (2.6 in). Sunshine is abundant, peaking in May with 356 hours, and provides a bright backdrop to the lush landscape. For more detailed climate information, visit Bairoa climate.

Caguas, Puerto Rico enjoys a tropical climate characterized by warm temperatures year-round. Average monthly temperatures range from 24°C (76°F) in January to 27°C (81°F) during the summer months. Precipitation is highest from May to September, peaking at 200 mm (7.9 in) in September, while sunshine hours are abundant, reaching up to 356 hours in May. This pleasant weather makes Caguas an attractive destination for outdoor activities. For more detailed information, visit Caguas climate.

Conclusion

In conclusion, Caguas, Puerto Rico, presents a captivating climate characterized by consistently warm temperatures, high sunshine duration, and notable UV exposure levels throughout the year. With an average temperature that fosters lush green landscapes and a varied precipitation pattern that sustains its ecosystems, the region is well-suited for agriculture and outdoor activities. The steady daylight duration provides ample opportunities for engagement with the natural beauty and cultural richness of Caguas. However, awareness of the extreme UV Index serves as a vital reminder for residents and visitors alike to take necessary precautions against sun exposure. Overall, the climate of Caguas not only shapes its environment but also enriches the lifestyle of those who inhabit or visit this tropical haven.

Discover the Climate of Caguas's Places

B C