Climate and monthly weather forecastToa Baja, PR
Climate and monthly weather forecast
The climate of Toa Baja
Toa Baja, situated on the northern coast of Puerto Rico in the United States, is dominated by an Am - Tropical monsoon climate according to the Köppen climate classification. The year-round weather in Toa Baja showcases a harmonious blend of warmth and tropical moisture, demonstrative of its geographic position. With minimum temperature fluctuations throughout the various seasons, it maintains a consistent tropical climate. The extensive climatological data clearly illustrates a steady rise in temperatures from 73.6°F (23.1°C) to 85.5°F (29.7°C).A unique characteristic of Toa Baja's weather is its humidity level, which ranges from 76% to 79%, thus contributing to the overall warm and humid climate. This encompasses a balanced amount of sunshine reaching upto 10.8 hours during the months of May and June. As a tropical locale, it receives a significant amount of rainfall annually, peaking in September with a robust 3.82" (97mm). Nevertheless, the monsoon pattern ensures clear skies on more than half the year, with cloud coverage not exceeding 34%.
The best time to visit Toa Baja
The optimal time to enjoy the tropical ambiance of Toa Baja is during May and June. With an ample amount of sunshine that extends upto 10.8 hours and with peak temperatures of 84.2°F (29°C) and 84.7°F (29.3°C) respectively, these months offer an excellent window for outdoor activities and sightseeing. Additionally, relative humidity remains at a manageable 79% providing comfort despite the heat. Rainfall during this period is significantly lower when compared to other months, adding further to the pleasant conditions.The worst time to visit Toa Baja
Though Toa Baja enjoys a tropical climate year-round, the period of September to November could prove to be less desirable for visitors. The copious rainfall is the prime reason, which peaks in September at 3.82" (97mm), followed by a considerable amount in October and November as well. Coupled with one of the highest cloud coverages of the year, the overall weather conditions could lead to less than optimal sightseeing opportunities during this time.Spring weather in Toa Baja
Spring in Toa Baja falls between the months of March to May, with an average temperature range from 73°F (22.8°C) to 82.6°F (28.1°C). Apart from providing daytime warmth, these months also indicate a remarkable increase in the sunshine hours that achieve a maximum of 10.8 hours by May. Rainfall measures from 1.81" (46mm) in March to 3.43" (87mm) by May, accompanying a mild increase in humidity from 76% to 79%. Overall, the spring months in Toa Baja exhibit a gradual increase in heat, humidity, and rainfall, typical of an advancing tropical climate.Summer weather in Toa Baja
In Toa Baja, summer extends from June to August, characterised by the year’s most elevated temperatures that go from 77.5°F (25.3°C) to a significant 85.5°F (29.7°C) by month end. The impressive sunshine duration that peaks at 10.8 hours in June slightly dips to 9.1 hours by August. Rainfall during these months fluctuates, with a substantial 1.77" (45mm) in June, increasing to 2.44" (62mm) in August. Amidst increasing rainfall, the humidity level remains steady at 79%, carrying the suggestion of a truly tropical summer.Autumn weather in Toa Baja
Autumn in Toa Baja spans from September to November. A slight decrease in temperature from 78.4°F (25.8°C) to 76.6°F (24.8°C) occurs during this period. Despite the minimal drop in temperature, autumn sees an enormous amount of rainfall that culminates in September with a high of 3.82" (97mm). The sunshine hours decrease to 6.7 hours in November with a cloud coverage of 34%. As humidity hovers at 78%, the autumn months can be hot, humid and rain-drenched.Winter weather in Toa Baja
The winter months in Toa Baja, from December to February, usher in temperatures ranging from 75.2°F (24°C) to 80.2°F (26.8°C), which are invitingly warm for a winter climate. In contrast to the previous seasons, rainfall sees a significant decrease, culminating in the year's lowest rainfall of 0.94" (24mm) in February. Though sunshine hours continue to decrease to around 6.8 hours in December, they rise to 8.9 hours by the end of February. With reduced rainfall and rising sunshine hours, the winter season in Toa Baja brings forth brighter skies and mild temperatures.Weather in January
January in Toa Baja, Puerto Rico, exhibits a rather steady climate, with the warm temperatures providing a delightful tropical atmosphere. Notably, the highest temperature reaches 79.9°F (26.6°C), soothing for anyone wanting a break from the winter cold. Weather in January »Weather in February
Building on the mild climate of January, the weather in February extends this pleasant, tropical theme. A subtle increase in temperature keeps Toa Baja comfortably warm for outdoor adventures. Sunlit days coupled with a modest rainfall provide just the right mix for exploring nature. Weather in February »Weather in March
As spring approaches, March in Toa Baja, Puerto Rico, carries forward the mild and enjoyable weather from February. With longer daylight hours, the city continues to bask in the pleasant tropical climate. A significant increase in rainfall can be observed this month, intensifying at 2.01" (51mm). Weather in March »Weather in April
April in Toa Baja ushers in a wholly agreeable climate as the tropical spring advances. The attractive sunshine, moderated temperatures, and trade winds make it a highly preferred travel time. Rain showers are quite frequent during this period, enriching the flora with their visits. Weather in April »Weather in May
With the arrival of May, Toa Baja, Puerto Rico, witnesses the progress of tropical spring. With the persistent sunshine and mild humidity, the city blossoms with life. Rain more than ever does its part in nurturing this life by contributing substantially, surging to 3.43" (87mm). Weather in May »Weather in June
June in Toa Baja brings in the summer, characterized by high temperatures and somewhat stronger winds. The tropical city is graced with an extended period of daylights. Despite the surge in temperature, the presence of periodic rainfall ensures lush greenery. Weather in June »Weather in July
July presents a classic tropical climate in Toa Baja, Puerto Rico, with the summer at its peak. The warmest temperature peaks at 84.7°F (29.3°C), ideal for those keen to experience tropical warmth. Rain showers come and go, preserving the vibrancy of the city's flora. Weather in July »Weather in August
August continues the traditional tropical trend in Toa Baja. With slightly longer daylights, there is more sunshine for outdoor activities. The afternoons are warmed to a comfortable level, while evenings remain refreshing. Rainfall nearly equals that of July, maintaining a balance in the environment. Weather in August »Weather in September
As September arrives, the weather in Toa Baja, Puerto Rico, remains consistent with the previous month. Warming temperatures, intermittent showers, and a gentle sea breeze define the city's climate. Rainfall attains its peak at 3.62" (92mm), aiding the lush greenery in maintaining its verdant display. Weather in September »Weather in October
October in Toa Baja brings a slight decrease in daylight hours, yet the city’s weather maintains its tropical charm. The gentle reduction in temperature, alongside the calming sea breeze, offers a refreshing touch. Rainfall does not throw any surprises, keeping the environment healthy and vibrant. Weather in October »Weather in November
November invites the early winter season in Toa Baja, Puerto Rico, with a mild decrease in temperature. The city enjoys extended hours of sunshine, allowing for ample outdoor enjoyment despite diminishing daylight hours. Occasional rains grace the city, preserving the bloom of local flora. Weather in November »Weather in December
December in Toa Baja marks the arrival of the holiday season, offering an ideal tropical winter experience. With mildly cooler temperatures, the city maintains a soothing ambiance. Despite shorter daylight hours, the sun imparts its warmth adequately. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Toa Baja, PR
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (79.9°F).
The months with the highest average low temperature are August, September and October (78.4°F).
The coldest month (with the lowest average low temperature) is March (73°F).
Average pressure
Toa Baja, PR
- Average pressure in January:
30.02"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.9"Hg - Average pressure in November:
29.91"Hg - Average pressure in December:
29.98"Hg
The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed
Toa Baja, PR
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.4mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.7mph - Average wind speed in May:
8.4mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
10mph - Average wind speed in August:
9.6mph - Average wind speed in September:
7.6mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.4mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is July (10mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).
Average humidity
Toa Baja, PR
The months with the highest relative humidity are May, June, July and November (79%).
The month with the lowest relative humidity is March (76%).
Average rainfall
Toa Baja, PR
- Average rainfall in January:
1.26" - Average rainfall in February:
0.94" - Average rainfall in March:
2.01" - Average rainfall in April:
1.81" - Average rainfall in May:
3.43" - Average rainfall in June:
1.77"
- Average rainfall in July:
2.01" - Average rainfall in August:
2.44" - Average rainfall in September:
3.62" - Average rainfall in October:
3.82" - Average rainfall in November:
3.23" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is October (3.82").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days
Toa Baja, PR
- Average rainfall days in January:
14.2 days - Average rainfall days in February:
14.2 days - Average rainfall days in March:
17 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
22.7 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
19.7 days - Average rainfall days in September:
20.4 days - Average rainfall days in October:
24 days - Average rainfall days in November:
22.9 days - Average rainfall days in December:
17.5 days
The month with the highest number of rainy days is October (24 days).
The months with the least rainy days are January and February (14.2 days).
Average daylight / Average sunshine
Toa Baja, PR
- Average daylight in January:
11h and 12min - Average daylight in February:
11h and 36min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 36min - Average daylight in May:
13h and 0min - Average daylight in June:
13h and 12min
- Average daylight in July:
13h and 6min - Average daylight in August:
12h and 42min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 42min - Average daylight in November:
11h and 18min - Average daylight in December:
11h and 0min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in January:
8h and 48min - Average sunshine in February:
8h and 54min - Average sunshine in March:
8h and 30min - Average sunshine in April:
8h and 54min - Average sunshine in May:
10h and 48min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 6min - Average sunshine in September:
9h and 24min - Average sunshine in October:
8h and 12min - Average sunshine in November:
6h and 42min - Average sunshine in December:
6h and 48min
The months with the most sunshine are May and June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days
Toa Baja, PR
- Average sunshine days in January:
9.8 days - Average sunshine days in February:
8.4 days - Average sunshine days in March:
8.9 days - Average sunshine days in April:
6.6 days - Average sunshine days in May:
5 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
8.3 days - Average sunshine days in August:
4.9 days - Average sunshine days in September:
5.3 days - Average sunshine days in October:
3.5 days - Average sunshine days in November:
3.5 days - Average sunshine days in December:
7.5 days
The month with the most sunshine days is January (9.8 days).
The months with the least sunshine days are October and November (3.5 days).
Average UV index
Toa Baja, PR
The months with the highest UV index are May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April and December (UV index 6).
Average cloud cover
Toa Baja, PR
The months with the most cloud cover are May, July and November (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility
Toa Baja, PR
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





