Climate and monthly weather forecastAdjuntas, PR
Climate and monthly weather forecast
The climate of Adjuntas
Nestled within the tropical region, Adjuntas, Puerto Rico, USA exhibits a 'Tropical monsoon' climate per the Köppen climate classification. It is characterized by consistently high temperatures and high relative humidity all year round, a typical attribute of an 'Am' climate zone.Throughout the year, the temperature in Adjuntas ranges between 72°F (22.2°C) to 86.5°F (30.3°C) on average, signifying its tropical climate. A trend can be observed in the relatively small temperature variation, with the warmest months being June to September, where average high temperatures hover around 86°F (30°C). Minimum temperatures show little change from month to month, demonstrating a narrow range from 71.4°F (21.9°C) in March, to a peak of 76.6°F (24.8°C) from June to October.
Rainfall in Adjuntas exhibits somewhat regularity, with precipitation happening every month. Significant rainfall is received throughout the year; however, the wettest months are observed from August to October, receiving between 3.11" (79mm) and 3.58" (91mm) of precipitation monthly. The driest period occurs in the earlier months of the year with 0.71" (18mm) of rainfall in January.
The city sees little to no snowfall, indicating it's firmly within the tropical climatic zone. Sunshine hours range from a low of 7.1 hours in November to a high of 11.3 hours in June. This translates to bright, sunny days for most parts of the year.
The best time to visit Adjuntas
For those seeking to immerse themselves in the warmth of Adjuntas, consider visiting during the months of June to August. Coming in at a sun-soaked 11.3 to 13.2 daylight hours, coupled with a high temperature range of 85.8°F (29.9°C) to 86.5°F (30.3°C), it is undoubtedly the best time for sun-seekers and outdoor enthusiasts.The worst time to visit Adjuntas
Traveling to Adjuntas during the months of August to October might be a bit challenging, as these months are typically the wettest period of the year with rainfall inches ranging from 3.11 to 3.58" (91mm). Additionally, the amount of sunshine received declines to around 9 hours, indicating cloudier skies and higher chances of rain.Spring weather in Adjuntas
Spring in Adjuntas, from March to May, is bathed in warmth with an average temperature range of 73.2°F (22.9°C) to 84.7°F (29.3°C). Rainfall remains moderate, but begins to increase from 1.34" (34mm) in April to 2.05" (52mm) in May. With sunlight hours extending from 12.1 hours in March to 13 hours in May, spring reigns with pleasant warmth and long sunny days.Summer weather in Adjuntas
Summer in Adjuntas, spanning June to August, is marked by the highest temperatures of the year, fluctuating between 76.5°F (24.7°C) to 86.5°F (30.3°C). Rainfall increases significantly averaging around 1.5" (38mm) in June to 3.11" (79mm) by August. Nevertheless, the city stays bright with 13.2 daylight hours in June, which slowly reduces to 12.7 hours in August.Autumn weather in Adjuntas
Witnessing a dip in temperatures, autumn in Adjuntas, from September to November, displays cooler conditions with averages from 74.8°F (23.8°C) to 86.2°F (30.1°C). Rainfall hits its peak in September with 3.58" (91mm), and eases down to 2.48" (63mm) by November. The daylight hours decrease to 11.3 hours in November, still offering abundant sunshine for outdoor activities.Winter weather in Adjuntas
Winter months in Adjuntas, December to February, continue to retain the tropical charm. Mild temperatures persist from 72°F (22.2°C) to 82.4°F (28°C), maintaining a comfortable level of warmth. Rainfall decreases substantially to 1.22" (31mm) in December and 0.83" (21mm) in February. Sunlight hours stay steady around 11 hours, adding a touch of cheer to the winter months.Weather in January
January witnesses a gentle start to the year in Adjuntas, Puerto Rico, with a soothing balance between warmth and moisture. The range of climatic conditions—relative humidity of 77%, average high temperatures of 81.9°F (27.7°C), and average low temperatures of 72°F (22.2°C)—crafts an inviting weather. Weather in January »Weather in February
Moving into February, Adjuntas continues to provide a pleasant climate for residents and visitors. The temperatures tend to be quite stable, with the highs and lows not moving far from the January averages. Although the relative humidity remains the same at 76%, rainfall increases slightly to 0.83" (21mm) across about 14.8 days. Weather in February »Weather in March
As the city transitions to March, an increase in rainfall to 1.46" (37mm) distinguishes the month with precipitation events spreading across 18.4 days. Unlike the previous two months, March presents a slightly less sunny disposition, with sunshine lasting for just 8.7 hours a day. Weather in March »Weather in April
April carries along the trend of warmer and wetter days in Adjuntas. This period registers an increase in high temperatures, touching 83.7°F (28.7°C), with lows also showing an uptick, situated at 73.2°F (22.9°C). In contrast to March, April's rainfall goes up to 1.34" (34mm) across 19.3 days, indicating more wet days in the month's tally. Weather in April »Weather in May
In May, Adjuntas experiences an increase in temperatures, making the environment distinctly hotter than the preceding months. The high temperature climbs up to 84.7°F (29.3°C), easily the highest so far in the year. True to the season, rainfall jumps noticeably to 2.05" (52mm), which is distributed through 21.6 days of the month. Weather in May »Weather in June
June ushers in summer, flagged by clear skies and longer daylight hours. Soaring temperatures set a fresh high of 85.8°F (29.9°C), indicative of the summertime heat. Simultaneously, night-time temperatures hover around 76.5°F (24.7°C) - the highest low temperature yet this year. Weather in June »Weather in July
July parades the year's hottest conditions in Adjuntas. The mercury's upward trajectory ends with a peak of 86.4°F (30.2°C). Coinciding with the rise in temperatures, July also witnesses an increase in rainfall, reaching a considerable 2.2" (56mm) across 18.3 days. Weather in July »Weather in August
August continues the trend of high temperature in Adjuntas, with the high and low temperatures almost matching those of July. On the other hand, rainfall swells to 3.11" (79mm). This increment in precipitation is also seen in the number of rainy days, increasing to 20.2. Weather in August »Weather in September
September in Adjuntas is marked by a decline in temperatures, with the high temperature falling to 86.2°F (30.1°C). Despite this, the environmental conditions remain pleasant for outdoor activities, thanks to the 12.2 daylight hours. Weather in September »Weather in October
October ushers a further reduction in temperature in Adjuntas. However, even with the slight cooling trend, the weather remains comfortably warm. The rainfall scale tilts back to 3.11" (79mm) over 21.9 days. The lengthier rainy spells, in unison with a relative humidity of 79%, provide a refreshing mode to the previously scorching summer months. Weather in October »Weather in November
In November, Adjuntas experiences significantly cooler days, with the high temperature dropping to 83.8°F (28.8°C). This drop in thermal readings is matched by a decrease in rainfall to 2.48" (63mm) over 22.5 days, the highest number of rainy days for the year. Weather in November »Weather in December
December brings the advent of winter to Adjuntas. The high temperature drops further to 82.4°F (28°C), introducing cool weather to the city. Rainfall recedes further to 1.22" (31mm), distributing over 16.3 days, bringing about a more dry and less humid climate, as signified by a relative humidity of 78%. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Adjuntas, PR
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (81.9°F).
The months with the highest average low temperature are July, August and October (76.6°F).
The coldest month (with the lowest average low temperature) is March (71.4°F).
Average pressure
Adjuntas, PR
- Average pressure in January:
30.01"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
30"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.89"Hg - Average pressure in November:
29.9"Hg - Average pressure in December:
29.97"Hg
The months with the highest atmospheric pressure are January and February (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.89"Hg).
Average wind speed
Adjuntas, PR
- Average wind speed in January:
7mph - Average wind speed in February:
7.1mph - Average wind speed in March:
6.8mph - Average wind speed in April:
7mph - Average wind speed in May:
7.2mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
8mph - Average wind speed in August:
7.5mph - Average wind speed in September:
6.2mph - Average wind speed in October:
5.8mph - Average wind speed in November:
5.6mph - Average wind speed in December:
6.7mph
The windiest month (with the highest average wind speed) is July (8mph).
The calmest month (with the lowest average wind speed) is November (5.6mph).
Average humidity
Adjuntas, PR
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is March (75%).
Average rainfall
Adjuntas, PR
- Average rainfall in January:
0.71" - Average rainfall in February:
0.83" - Average rainfall in March:
1.46" - Average rainfall in April:
1.34" - Average rainfall in May:
2.05" - Average rainfall in June:
1.5"
- Average rainfall in July:
2.2" - Average rainfall in August:
3.11" - Average rainfall in September:
3.58" - Average rainfall in October:
3.11" - Average rainfall in November:
2.48" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days
Adjuntas, PR
- Average rainfall days in January:
15.6 days - Average rainfall days in February:
14.8 days - Average rainfall days in March:
18.4 days - Average rainfall days in April:
19.3 days - Average rainfall days in May:
21.6 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
20.2 days - Average rainfall days in September:
20.9 days - Average rainfall days in October:
21.9 days - Average rainfall days in November:
22.5 days - Average rainfall days in December:
16.3 days
The month with the highest number of rainy days is November (22.5 days).
The month with the least rainy days is February (14.8 days).
Average snowfall days
Adjuntas, PR
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight / Average sunshine
Adjuntas, 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 6min
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 6min).
- Average sunshine in January:
9h and 18min - Average sunshine in February:
9h and 6min - Average sunshine in March:
8h and 42min - Average sunshine in April:
9h and 0min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 0min - Average sunshine in September:
9h and 24min - Average sunshine in October:
8h and 30min - Average sunshine in November:
7h and 6min - Average sunshine in December:
7h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days
Adjuntas, PR
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
9.4 days - Average sunshine days in March:
9.2 days - Average sunshine days in April:
7.6 days - Average sunshine days in May:
7.3 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
7.7 days - Average sunshine days in September:
6.6 days - Average sunshine days in October:
6.3 days - Average sunshine days in November:
5.1 days - Average sunshine days in December:
9.4 days
The month with the most sunshine days is June (12.2 days).
The month with the least sunshine days is November (5.1 days).
Average UV index
Adjuntas, PR
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 6).
Average cloud cover
Adjuntas, PR
The month with the most cloud cover is May (Cloud cover 30).
The months with the least cloud cover are January and February (Cloud cover 22).
Average visibility
Adjuntas, 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).





