Last updated: August 31, 2025
In Monserrate, Puerto Rico, April brings mild and tropical weather, characterized by a maximum temperature peaking at 31°C (88°F) and an average of 26°C (78°F). The evenings are pleasantly warm, with minimum temperatures averaging 22°C (71°F). However, be prepared for some rain, as the month typically sees around 55 mm (2.2 in) of precipitation spread over 10 days, contributing to a humidity level of approximately 75%. This combination of warmth and moisture creates a vibrant atmosphere ideal for enjoying the lush landscapes of this beautiful locale.
In April, Monserrate, Puerto Rico, welcomes a delightful warming trend, as temperatures begin to rise noticeably. With a minimum of 22°C (71°F) and a gentle average temperature of 26°C (78°F), the island's climate is increasingly inviting. The maximum temperature peaks at 31°C (88°F), matching March's highs, yet hinting at the hotter months to come. This month marks a smooth transition, showcasing an upward shift from cooler beginnings earlier in the year. As the days grow longer and the sun shines brighter, April is truly a sweet spot for enjoying the vibrant natural beauty of this Caribbean paradise.
In April, Monserrate, Puerto Rico experiences a moderate precipitation level of 55 mm (2.2 in), a notable decrease from the previous month's 72 mm (2.8 in). This month sees an average of 10 rainy days, which is lower compared to the increasing trend of precipitation days seen from January through March. April acts as a transitional period, signaling a shift towards the wetter months ahead, as both May and June see higher rainfall, with May just slightly topping April at 58 mm (2.3 in) and June continuing the trend with 62 mm (2.4 in). This pattern illustrates a gradual buildup of moisture in preparation for the heavier downpours prevalent in the summer, especially as Monserrate approaches the peak of its rainy season in September, which averages a striking 172 mm (6.8 in) over 23 rainy days.
April in Monserrate, Puerto Rico sees humidity levels at a comfortable 75%, mirroring the consistent conditions of the preceding months. This marks a slight decrease from the earlier spring month of March, which recorded a humidity of 74%. As the island transitions into the warmer months, humidity begins to edge higher, with June registering 77% and July and August peaking at 80%. Overall, the pattern reveals a trend of fairly stable humidity during the spring, before rising in the summer, creating the lush, tropical environment that Monserrate is known for.
In April, the UV Index in Monserrate, Puerto Rico, reaches a striking 13, classifying it in the extreme exposure category with a burn time of just 10 minutes. This level not only mirrors the UV Index seen in March but also sets the stage for the following months, where the Index escalates even further to 14 in May. The consistent extreme ratings from February through June highlight a pattern of intense solar exposure, emphasizing the importance of sun safety. As visitors and residents revel in the tropical sun, it's crucial to stay vigilant against UV radiation. For more details on the UV Index throughout the year, check out Monserrate UV Index.
UV Risk Categories
As the calendar turns to April, Monserrate, Puerto Rico, basks in the glow of 346 hours of sunshine, marking a delightful peak in brightness just shy of May's splendid 356 hours. This upward trend from the winter months—where sunshine hours lingered around 257 in January and climbed steadily through February and March—signals the arrival of spring in full force. While the summer months of June and July still boast impressive sunshine, April’s warmth heralds the vibrant days ahead, inviting both locals and visitors to soak in the invigorating rays and enjoy the beauty of this tropical paradise.
In Monserrate, Puerto Rico, April brings a 50% chance of sunny weather, reflecting a slight dip from the preceding months. As spring unfolds, the sun shines more often in January and February, boasting 51% and 71% sunny days, respectively. However, as winter transitions into spring, March still holds a favorable 64% chance before April's weather takes a slight step back. The trend reveals that while April may not be the sunniest month, it remains favorable compared to the approaching summer months of June and July, when the likelihood of sun drops significantly to 25% and 43%. Thus, April offers a balanced blend of sunshine and the advent of warmer temperatures, making it a delightful time to visit Monserrate.
In Monserrate, Puerto Rico, the daylight duration gradually shifts throughout the year, creating a rhythm that dances with the seasons. January and February welcome the year with 11 hours of daylight, while March heralds the first signs of lengthening days, extending to 12 hours. This trend continues into April and May, where the days remain bright and inviting at 12 hours. As summer approaches, June and July peak with an impressive 13 hours of daylight, perfect for outdoor adventures and soaking up the sun. However, as fall rolls in, the daylight begins to taper off, returning to 12 hours in both August and September, before settling back to 11 hours in the cooler months of October, November, and December. This seamless transition highlights the beautiful balance of light that characterizes Monserrate’s tropical climate.
In April, the winds of Monserrate, Puerto Rico exhibit a gentle retreat, with an average speed of 3.8 m/s (8 mph), slightly lower than the preceding months. Following a breezy February and a moderate March, April's mild gusts create a tranquil atmosphere, perfect for outdoor activities and soaking in the island's beauty. This month serves as a transition, setting the stage for the increasingly breezy conditions that will arrive in the summer months, characterized by an uptick in wind speed seen in May and June. Despite the slight dip in April, the overall wind pattern throughout the year showcases a dynamic interplay, where the shifting velocities enhance Monserrate's charm and allure.
Weather in Monserrate varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Monserrate, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January present a moderately warm climate, with April exhibiting slightly higher temperatures. In April, the minimum temperature is around 22°C (71°F) and can reach a maximum of 31°C (88°F), while January's temperatures range from a minimum of 20°C (69°F) to a maximum of 30°C (86°F). Precipitation is more pronounced in April, with 55 mm (2.2 in) occurring over 10 days, compared to January's 39 mm (1.5 in) spread over 12 days. Both months experience high humidity, but April has a marginally lower level at 75% compared to January’s 76%. For a closer look at January weather specifics, you can visit Monserrate weather in January.
April weather tends to be slightly warmer than February, with average temperatures reaching 26°C (78°F) compared to February's 25°C (77°F). While both months have similar minimum temperatures, April often sees maximum temperatures of 31°C (88°F), slightly higher than February's 30°C (85°F). In terms of precipitation, April experiences more rainfall, totaling 55 mm (2.2 in) over 10 days, while February records 43 mm (1.7 in) over 13 days. Despite the variation in rainfall, humidity remains consistent at 75% for both months. For a closer look at February's weather specifics, you can visit Monserrate weather in February.
In comparing the weather between March and April, April tends to be slightly warmer, with an average temperature of 26°C (78°F) compared to March's average of 25°C (77°F). Both months reach a maximum of 31°C (88°F), but April features a higher minimum temperature of 22°C (71°F) versus March's 21°C (70°F). Precipitation is lower in April, with 55 mm (2.2 in) over 10 days, compared to March's 72 mm (2.8 in) over 14 days, indicating that April tends to be drier. Humidity remains similar in both months, with April at 75% and March at 74%. For more detailed information, you can check out Monserrate weather in March.
April and May present a gradual transition in weather, with May typically being slightly warmer. In April, temperatures range from a minimum of 22°C (71°F) to a maximum of 31°C (88°F), while May sees temperatures starting at 23°C (73°F) and peaking at 32°C (90°F). Both months experience high humidity at 75%, but May has a bit more precipitation, accumulating 58 mm (2.3 in) over 14 days compared to April's 55 mm (2.2 in) over 10 days. This increase in rainfall and temperature makes May a vibrant yet humid month. For more detailed insights into the weather, check out Monserrate weather in May.
April and June exhibit similar warm weather patterns, but June tends to be slightly hotter and wetter. In April, the temperatures range from a minimum of 22°C (71°F) to a maximum of 31°C (88°F), with an average of 26°C (78°F) and 55 mm (2.2 in) of precipitation over about 10 days. In comparison, June sees temperatures starting from 24°C (75°F) and peaking at 32°C (90°F), with an average of 27°C (81°F) and more rainfall, totaling 62 mm (2.4 in) over 15 days. The humidity levels also increase slightly from 75% in April to 77% in June, making the early summer months feel a bit more oppressive. For more specific details on June weather, check out Monserrate weather in June.
April and July exhibit warm and humid conditions, but with some notable differences. In April, temperatures range from a minimum of 22°C (71°F) to a maximum of 31°C (88°F), with an average of 26°C (78°F). The month sees about 55 mm (2.2 in) of precipitation over approximately 10 days, resulting in a humidity level of 75%. In contrast, July experiences slightly higher temperatures, with a minimum of 24°C (76°F), an average of 28°C (82°F), and a maximum of 32°C (90°F). Precipitation increases to 76 mm (3.0 in) over 17 days, contributing to a higher humidity of 80%. For more specific insights into July weather, you can refer to Monserrate weather in July.
April and August in Monserrate present a noticeable contrast in weather patterns. In April, temperatures range from a minimum of 22°C (71°F) to a maximum of 31°C (88°F), with an average of 26°C (78°F). The month sees around 55 mm (2.2 in) of precipitation over approximately 10 days, coupled with a humidity level of 75%. In contrast, August experiences slightly higher temperatures, with a minimum of 25°C (77°F) and a maximum of 32°C (90°F), averaging 28°C (82°F). Additionally, August is wetter, receiving 86 mm (3.4 in) of rain over about 18 days, and the humidity increases to 80%. For a more detailed look at the conditions, check out Monserrate weather in August.
April and September exhibit noticeable differences in weather patterns. In April, temperatures range from a mild 22°C (71°F) to a warm 31°C (88°F), with an average of 26°C (78°F), accompanied by 55 mm (2.2 in) of precipitation over approximately 10 days and humidity levels at 75%. By contrast, September tends to be warmer with minimum temperatures at 25°C (77°F) and maximums reaching up to 32°C (90°F), averaging around 28°C (82°F). However, it also experiences significantly more rainfall, totaling 172 mm (6.8 in) across about 23 days, along with slightly higher humidity at 79%. For more detailed information, you can refer to Monserrate weather in September.
April and October present distinctly warm climates, yet they showcase some notable differences. In April, temperatures range from a minimum of 22°C (71°F) to a maximum of 31°C (88°F), with an average of 26°C (78°F) and relatively lower precipitation of 55 mm (2.2 in) over about 10 days. In contrast, October sees slightly warmer conditions with a minimum of 24°C (75°F) and a peak of 32°C (89°F), averaging at 27°C (81°F). However, it also experiences increased rainfall, measuring 136 mm (5.3 in) spread across 22 days. Furthermore, humidity levels are slightly higher in October at 78%, compared to April's 75%. For more detailed information, you can check Monserrate weather in October.
In comparing the weather of April and November, both months exhibit warm temperatures, with November showing a slightly higher minimum temperature of 23°C (74°F) compared to April's 22°C (71°F), while their average temperatures remain quite similar at around 26°C (80°F). However, November tends to be wetter, recording 93 mm (3.7 in) of precipitation over 17 days, in contrast to April's 55 mm (2.2 in) over just 10 days. Humidity levels are also slightly elevated in November at 78%, compared to 75% in April, contributing to a more moist atmosphere. For more detailed information, you can check Monserrate weather in November.
In comparing the weather of April and December, both months exhibit similar temperature patterns, with minimums around 22°C (71°F), averages at 26°C (78°F), and maximums reaching 31°C (88°F in April and 87°F in December). However, December tends to receive slightly less precipitation (50 mm or 2.0 in) compared to April’s 55 mm (2.2 in), though it has more rainy days, totaling 16 days in December against 10 in April. Additionally, humidity levels are comparable, with April at 75% and December slightly higher at 76%. For further details on the specific weather in December, refer to Monserrate weather in December.
As April unfolds in Monserrate, the weather transitions into a warmer and more humid phase compared to earlier months. With temperatures averaging around 26°C (78°F) and peaking at 31°C (88°F), the days invite a vibrant outdoor experience, even though brief rain showers are not uncommon, occurring on about 10 days throughout the month. This mix of warmth and humidity, with a notable precipitation of 55 mm (2.2 in), sets April apart, painting a vivid picture of the island's lush landscape. For a deeper understanding of the climate patterns, feel free to explore more at Monserrate Climate.