Climate and monthly weather forecastToa Alta, PR

The climate of Toa Alta

Toa Alta, a tropical domain in Puerto Rico, USA, falls within the Am - Tropical monsoon categorization of the Köppen climate classification. A prominent characteristic of the climatic profile is the relative uniformity of high temperatures, ranging from 79.9°F (26.6°C) in January to a steady ascent peaking at 85.5°F (29.7°C) in August. In contrast, low temperatures vary between 73°F (22.8°C) in March to 78.4°F (25.8°C) between August to October.

The relative humidity hovers around the 78% mark throughout the year, with minor deviations. Rainfall distribution is relatively uneven, lowest in February with 0.94" (24mm) and spiking to 3.82" (97mm) in October. Consequently, the number of rainfall days also increases from 14.2 days in January and February to a maximum of 24 days in October.

Distinct weather patterns emerge when focusing on daylight hours and sunshine duration. Daylight hours extend from 11.2 hours in January, reaching a zenith of 13.2 hours by June, and then reducing gradually. Correspondingly, sunshine duration ranges from 6.7 hours in November to 10.8 hours between May and June.

Wind speeds are another variable to consider. Average wind speeds navigate from a low of 6.8mph (10.9km/h) in October to a high of 10mph (16.1km/h) in July. Meanwhile, the maximum wind speed oscillates between 7.5mph (12.1km/h) to 10.7mph (17.2km/h) and gust speeds from 10.1mph (16.3km/h) to 14.4mph (23.2km/h) during the same period.

The best time to visit Toa Alta

The optimal time for a visit to Toa Alta would likely fall between May and June. This period aligns with the longest daylight hours extending up to 13.2 hours and the highest sunshine duration at 10.8 hours per day. Although a moderate level of rain is expected around 1.77" (45mm) to 2.01" (51mm) across 15.8 to 16.8 days respectively, temperatures remain relatively high, swinging from 75.7°F (24.3°C) to 77.5°F (25.3°C) during nights and from 82.6°F (28.1°C) to 84.2°F (29°C) during days.

The worst time to visit Toa Alta

A less favorable time for a visit might be the late autumn period, particularly November. November is characterized by the year's lowest amount of daylight, at 11.3 hours, and sunshine, at 6.7 hours per day. Although temperatures remain reasonably high reaching 83.1°F (28.4°C) during the day and 76.6°F (24.8°C) at night, the number of rainy days can be a hindrance. With 22.9 rainy days on average in November and rainfall levels at 3.23" (82mm), potential visitors should consider possible interruptions to outdoor activities.

Spring weather in Toa Alta

Spring in Toa Alta, which spans from March to May, is marked by gradually increasing temperatures. Daytime highs rise from 80.2°F (26.8°C) to 82.6°F (28.1°C), while nighttime lows increase from 73°F (22.8°C) to 75.7°F (24.3°C). Reflecting the rise in temperature, daylight hours and sunshine also see an upward trend, growing from 12.1 hours to 13 hours and 8.5 hours to 10.8 hours respectively. Despite the pleasant temperatures and increased daylight, spring does see an upswing in rainfall moving from 2.01" (51mm) to 3.43" (87mm), and the number of rainy days increase from 17 to 22.7 days.

Summer weather in Toa Alta

Summer in Toa Alta witnesses a further rise in temperatures, hitting a peak at 84.7°F (29.3°C) in July during the day, and 78.3°F (25.7°C) during the night. Daylight ranges between 13.2 hours to 12.7 hours, while sunshine lasts for about 10.8 hours in June slowly reducing to 9.1 hours by August. Rainfall stays constant at around 2.01" (51mm) in July, then increases to 2.44" (62mm) by August. Concurrently, the number of rainy days also sees an upward twitch from 15.8 to 19.7 days.

Autumn weather in Toa Alta

Autumn brings a slight lowering of temperatures, going from 85.1°F (29.5°C) in September to 83.1°F (28.4°C) in November during the day, and equivalent dip from 78.4°F (25.8°C) to 76.6°F (24.8°C) at night. Daylight hours and sunshine follow a declining trajectory with daylight shrinking from 12.2 hours to 11.3 hours, and sunshine tapering from 9.4 hours to 6.7 hours per day. However, there is an abrupt rise in rainfall from 3.62" (92mm) to 3.23" (82mm), and rainy day count increasing from 20.4 to 22.9 days.

Winter weather in Toa Alta

Winter in Toa Alta sees a further decline in temperatures, with daytime highs tapering from 84.7°F (29.3°C) in December to 79.9°F (26.6°C) in January, before climbing back to 81.1°F (27.3°C) in February. Nights during winter witness temperatures moving from 75.2°F (24°C) in December to 73.6°F (23.1°C) in January before rising to 73.4°F (23°C). Correspondingly, daylight hours shrink to 11 hours and sunshine duration drops to 6.8 hours in December, and recovers to 8.8 hours by February. Rainfall and windy conditions taper off with rainfall decreasing from 1.61" (41mm) to 0.94" (24mm), and number of rainy days dropping from 17.5 days to 14.2 days in February.

Weather in January

The beginning of the year in Toa Alta, Puerto Rico signals a period of relatively lower temperatures and humidity, offering a slight respite from the typically tropical weather. Cloud cover tends to be moderate, making January a suitable month for outdoor activities, with excellent chances of bright sunlight piercing the sky. Weather in January »

Weather in February

The transition from January to February brings subtle changes to the climatic setting of Toa Alta. The temperatures show an upward trend, providing a touch of warmth to the already pleasant climate. Wind conditions slightly vary, maintaining a consistent breeze that hallmarks the Puerto Rican weather. Weather in February »

Weather in March

In March, the weather in Toa Alta steps closer to true tropical conditions. Temperature and humidity progressively rise, while the brightness of the day amplifies due to increasing daylight hours. The breeze becomes mildly cooler, heralding the imminent onset of the summer months. Weather in March »

Weather in April

April weather mirrors the march towards the peak tropical season in Toa Alta. The arrival of April brings an uptick in temperature, humidity and daylight hours, clearly signifying the end of the relatively cooler months. As the rainfall increases, so does the lush greenery and vibrant flora, painting a picturesque landscape. Weather in April »

Weather in May

May in Toa Alta greets residents with the beginning of the hot season, characterized by a noticeable increase in average temperatures. The surge in humidity levels enhances the tropical feel, making it a perfect time for water-related activities. Weather in May »

Weather in June

The heat continues to rise in June as Toa Alta heads towards the mid-year mark. Stepping into the month, one can sense the pronounced intensification of the tropical ambiance, marked by higher humidity, persistent heat, and radiant sunshine. Weather in June »

Weather in July

July makes its presence felt with the warmest weather conditions of the year in Toa Alta. As the temperatures peak, humidity also maintains an elevated level, strengthening the hot and wet climate that defines tropical regions. With rainfall becoming more frequent, the burst of greenery and diverse fauna come to life. Weather in July »

Weather in August

The weather in August in Toa Alta bears resemblance with the preceding month, maintaining high temperatures and humidity levels. A gradual decrease in daylight hours is perceptible, as the season heads towards the end of summer. Weather in August »

Weather in September

September in Toa Alta signals the onset of the transition period from the hot to the cooler months. The temperature decline is gradual and moderate, bringing slight relief from the summer's peak heat. Changes in wind speed are also noticeable, indicating the upcoming shift in the season. Weather in September »

Weather in October

October breeds noticeable changes in the weather dynamics of Toa Alta. While the temperatures start dipping, frequent rain showers dominate the month, contributing to lower daylight hours. The wind registers a slowdown, heightening the peaceful ambiance amidst the refreshing showers. Weather in October »

Weather in November

November brings a notable difference in temperature levels as Toa Alta moves towards the end of the year. The ambiance becomes more pleasant with cooler winds replacing the hot summer gusts. Rainfall activity decreases, and the cloud cover also reduces, allowing for improved sun visibility. Weather in November »

Weather in December

Toa Alta sees a further drop in temperature as December kicks in, marking the transition towards the cooler months. The weather becomes increasingly pleasant with a noticeable reduction in humidity levels. Rainfall exhibits a significant decline, indicating the approaching dry period, while daylight hours continue to shorten. Weather in December »