Last updated: August 31, 2025
April in Isabela, Puerto Rico offers a delightful blend of warmth and tropical humidity, making it a charming month to experience the island's beauty. With maximum temperatures reaching up to 30°C (86°F) and an average of 25°C (78°F), the weather is perfect for outdoor activities. However, expect occasional rainfall with 66 mm (2.6 in) of precipitation spread over 14 days, contributing to the lush landscapes. The humidity level hovers around 75%, enhancing the tropical feel of this enchanting destination. Whether you’re basking in the sun or exploring the vibrant surroundings, April provides a vibrant backdrop for your Puerto Rican getaway.
In April, temperatures in Isabela, Puerto Rico begin to warm up, continuing the trend of mild weather observed in the preceding months. The minimum temperature rises slightly to 22°C (72°F), while the average remains steady at 25°C (78°F). Daytime highs reach up to 30°C (86°F), maintaining the overall warmth but with a notable potential for sunlit adventures. This gradual increase from the previous months hints at the approach of summer, making April an ideal time to enjoy Isabela’s beautiful beaches before the heat peaks in the following months. As the island transitions to its warmer season, visitors can expect delightful days filled with sunshine and a refreshing ocean breeze.
April in Isabela, Puerto Rico, showcases a notable shift in precipitation patterns as the region transitions from the drier early months to the lush, vibrant onset of spring. With 66 mm (2.6 in) of rainfall spread over 14 days, this month acts as a bridge between the relatively modest precipitation of March and the increased rainfall that May typically brings. The consistent April showers not only contribute to the region's lush vegetation but also indicate a steady rise in precipitation leading into late spring, setting the stage for May's peak rainfall of 97 mm (3.8 in). This trend highlights the increasing frequency of rain, reinforcing Isabela's tropical charm as it prepares for the warm, wet months ahead.
In April, Isabela, Puerto Rico experiences a humidity level of 75%, maintaining the trend of the preceding months, which hover around similar figures. This minor fluctuation indicates a stable climate as the region transitions into the warmer months. Following the slightly decreasing trend from January (76%) through March (74%), April shows a slight rebound. As the island approaches May, it continues to exhibit a consistent humidity profile, suggesting a prelude to the more humid summer months ahead. Overall, April's humidity reflects the area's tropical climate, setting the stage for the warmer, more humid days of summer.
April in Isabela, Puerto Rico showcases an extreme UV Index of 13, maintaining the high levels established in March. With a burn time of just 10 minutes, outdoor enthusiasts need to remain vigilant about sun protection during this month. This consistent trend of extreme UV levels continues from February through June, where the Index peaks at 14 in May. As the months progress, it's clear that sun exposure becomes increasingly intense, urging residents and visitors alike to prioritize their skin safety. Stay informed and prepared for the sun's powerful rays this April by checking the daily updates at Isabela UV Index.
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As April unfolds in Isabela, Puerto Rico, residents and visitors alike revel in the abundant sunshine with an impressive 352 hours of radiant daylight. This month marks the continuation of a sunny trend, following a steady climb from 261 hours in January to an invigorating 347 hours in March. April's bright days harmoniously lead into May, which promises even more sunshine, peaking at 361 hours. The island enjoys a generally balmy climate, making this vibrant spring month a perfect time to explore its natural beauty and bask in the warm rays before the slightly fluctuating summer months set in. With each passing month, Isabela clearly showcases its charm through its powerful connection with sunshine, creating an irresistible allure for sun-seekers.
April in Isabela, Puerto Rico, brings a 50% chance of sunny weather, marking a notable dip compared to the sunnier months of February (77%) and March (66%). This slight downturn suggests that while the spring season is still favorable, the shift towards the summer months introduces a bit more variability in weather patterns. Interestingly, after April, the likelihood of sun improves slightly in May (55%) before declining further into the rainy season with June (31%). Overall, while April retains a reasonable probability of sunshine, it’s a transitional month that hints at the unpredictable weather ahead.
In April, Isabela, Puerto Rico enjoys a pleasant 12 hours of daylight, mirroring the trend established in March and the upcoming month of May. As the year unfolds, daylight gradually increases from 11 hours in January and February to a peak of 13 hours in the mid-summer months of June and July. Following this peak, daylight tapers back to 12 hours in August and September before settling back to 11 hours by the end of the year. This pattern reveals a rhythmic ebb and flow of daylight, creating a balanced and consistent experience of sunshine for residents and visitors alike.
In April, Isabela, Puerto Rico, experiences a gentle shift in its breezes, with an average wind speed of 3.8 m/s (9 mph). This marks a notable decrease from the higher speeds observed in the preceding months of January through March, where winds hovered around 5.0 m/s (11 mph) to 5.7 m/s (13 mph). As spring fully unfolds, April's soft winds create a serene atmosphere, contrasting with the stronger gusts that return in the summer months of May and June, when speeds rise again to an average of 4.3 m/s (10 mph) and 5.1 m/s (11 mph), respectively. The prevailing trend shows a fluctuation that not only defines the region's weather patterns but also enhances the island’s natural beauty, making tranquil April days perfect for enjoying the coastal charm.
Weather in Isabela varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Isabela, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between April and January, we see both months feature similar average temperatures of around 25°C (77°F), but April experiences slightly warmer conditions with maximum temperatures reaching up to 30°C (86°F). Additionally, April has more rainfall, with 66 mm (2.6 in) of precipitation over 14 days, compared to January's 34 mm (1.3 in) across 11 days. Humidity levels are quite close, with April slightly higher at 75% versus January's 76%. For more detailed information on January weather, you can visit Isabela weather in January.
April and February have similar temperature ranges, with averages hovering around 25°C (76°F). However, April tends to be slightly warmer, featuring a minimum temperature of 22°C (72°F) compared to February's 21°C (69°F). In terms of precipitation, April receives more rain, totaling 66 mm (2.6 in) over 14 days, while February sees only 39 mm (1.5 in) across 13 days. Despite the increased rainfall in April, both months maintain a consistent humidity level of 75%. For a more detailed overview, check out Isabela weather in February.
In comparing the weather for March and April, both months exhibit warm temperatures, with April experiencing slightly higher max temperatures of 30°C (86°F) compared to March's 29°C (84°F). The average temperature remains relatively consistent, with both months averaging around 25°C (78°F for April and 76°F for March). Precipitation is slightly lower in April, totaling 66 mm (2.6 in) over 14 days, whereas March sees 72 mm (2.8 in) across 17 days. Humidity levels are quite similar, with April at 75% and March at 74%. For more detailed information, you can check out Isabela weather in March.
April and May have similar temperature ranges, with April featuring a minimum of 22°C (72°F) and a maximum of 30°C (86°F), while May sees slightly warmer temperatures, with a minimum of 23°C (74°F) and a maximum of 31°C (88°F). However, May experiences more rainfall, accumulating 97 mm (3.8 in) over 19 days compared to April's 66 mm (2.6 in) over 14 days. Despite the increase in precipitation, both months maintain consistent humidity levels at 75%. For a detailed look at weather conditions in May, you can visit Isabela weather in May.
Comparing the weather in April and June reveals some notable differences. In April, temperatures range from a minimum of 22°C (72°F) to a maximum of 30°C (86°F), with an average of 25°C (78°F). The month experiences considerable rainfall, with 66 mm (2.6 in) of precipitation spread over 14 days and humidity levels reaching 75%. In contrast, June sees slightly warmer temperatures, with a minimum of 24°C (76°F), an average of 27°C (81°F), and a maximum of 31°C (88°F). Precipitation increases to 85 mm (3.3 in) on 17 days, accompanied by a marginal rise in humidity to 77%. For more details on June weather, you can visit Isabela weather in June.
April and July both feature warm temperatures, but July generally sees slightly higher averages. In April, temperatures range from a minimum of 22°C (72°F) to a maximum of 30°C (86°F) with an average of 25°C (78°F). In contrast, July's temperatures start from a minimum of 24°C (76°F) and can rise to 31°C (88°F), averaging 27°C (81°F). Additionally, July experiences more rainfall, averaging 91 mm (3.6 in) over 18 days, compared to April’s 66 mm (2.6 in) across 14 days. Humidity is also higher in July at 80%, compared to April's 75%. For more details, you can check Isabela weather in July.
When comparing the weather in April and August, April typically experiences slightly lower temperatures, with a minimum of 22°C (72°F) and an average of 25°C (78°F), while August sees higher temperatures, starting at a minimum of 24°C (76°F) and averaging 27°C (82°F). Additionally, August is characterized by increased precipitation, with 97 mm (3.8 in) recorded over 20 days compared to April’s 66 mm (2.6 in) over 14 days. Humidity levels are also higher in August, reaching 80% compared to April's 75%. For more detailed information, you can check Isabela weather in August.
April and September exhibit notable differences in weather conditions. In April, temperatures range from a minimum of 22°C (72°F) to a maximum of 30°C (86°F), with an average of 25°C (78°F). This month experiences about 66 mm (2.6 in) of precipitation spread over 14 days, accompanied by a humidity level of 75%. Conversely, September tends to be warmer, with minimum temperatures of 25°C (77°F) and maximums reaching 31°C (88°F). The average temperature is slightly higher at 27°C (81°F), but it also brings significantly more precipitation, totaling 188 mm (7.4 in) over 23 days, with humidity reaching 79%. For more detailed information, you can check Isabela weather in September.
April and October present a warm and humid climate, but with some notable differences. In April, temperatures range from a minimum of 22°C (72°F) to a maximum of 30°C (86°F), with an average around 25°C (78°F). The month experiences around 66 mm (2.6 in) of precipitation spread over 14 days, coupled with a humidity level of 75%. In contrast, October offers slightly warmer temperatures, with a minimum of 24°C (76°F) and a maximum of 31°C (88°F), averaging 27°C (81°F). However, it also brings an increased precipitation level of 127 mm (5.0 in) over 21 days, along with a slight rise in humidity to 78%. For more details on this month’s weather, you can check Isabela weather in October.
April and November share similar temperature ranges, with both months featuring minimums around 22-23°C (72-74°F) and maximums reaching about 30°C (86-85°F). However, November tends to be slightly warmer on average, with an average temperature of 26°C (79°F) compared to April's 25°C (78°F). In terms of precipitation, November sees more rainfall, with 99 mm (3.9 in) over 19 days, compared to April’s 66 mm (2.6 in) over 14 days. The humidity is also slightly higher in November at 78% compared to April’s 75%. To explore more about the weather in November, you can check out Isabela weather in November.
In comparing the weather of April and December, both months exhibit similar average temperatures, with April ranging from a minimum of 22°C (72°F) to a maximum of 30°C (86°F), and December maintaining a slightly higher minimum at 23°C (73°F). While April sees more precipitation, totaling 66 mm (2.6 in) over 14 days, December experiences less rainfall at 43 mm (1.7 in) over 15 days, contributing to a marginally drier atmosphere. Humidity levels are fairly comparable, with April at 75% and December slightly higher at 76%. Overall, both months offer warm temperatures, but December tends to be a bit drier. For more details on December weather, you can visit Isabela weather in December.
As April unfolds in Isabela, it brings a delightful blend of warmth and humidity. With temperatures averaging around 25°C (78°F), this month is characterized by a mild, tropical climate, setting it apart from the cooler months that precede it. Although rainfall is more frequent, contributing to a total of 66 mm (2.6 in) over 14 days, these showers often provide refreshing breaks from the heat rather than persistent downpours. The 75% humidity envelops the region, creating a lush, vibrant atmosphere, ideal for outdoor adventures and exploration. For a deeper look into the unique climate characteristics throughout the year, explore Isabela Climate.