Yearly weather

Calculations are based on the last 8 years of historical weather data.

Weather Score #

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

Perfect for sun worshippers, beach lovers, and those seeking warm, dry climates for outdoor activities and relaxation.

Formula optimized for hot weather enthusiasts who prefer temperatures above 25°C (77°F) with maximum sun exposure and minimal precipitation.

Key factors in the calculation:

High temperatures: Favors locations with warm to hot daily highs
Abundant sunshine: Rewards areas with maximum daylight hours
Low precipitation: Penalizes frequent rain and wet conditions
Warm nights: Considers comfortable evening temperatures

Temperatures #

San Juan maintains comfortable temperatures year-round, with monthly averages consistently between 21.7°C and 30.7°C
The lowest minimum temperature is 21.7°C in January and February, while the highest maximum temperature reaches 30.7°C in September
June to September are the warmest months, occasionally exceeding the upper comfort threshold of 30°C
There are no months with discomfort temperatures in San Juan.

Maximum Temperatures

Minimum Temperatures

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions #

San Juan experiences relatively consistent sun hours throughout the year, ranging from 2.5h to 4.6h, with slightly more sunshine in the spring and summer months
Precipitation is generally moderate, but significantly increases during the months of September and October
The driest months appear to be January and June.

Sunny Weather

Period	San Juan
Jan	2.9 hours/day
Feb	2.8 hours/day
Mar	4.2 hours/day
Apr	4.6 hours/day
May	3.9 hours/day
Jun	4.5 hours/day
Jul	4.1 hours/day
Aug	3.6 hours/day
Sep	3.2 hours/day
Oct	2.7 hours/day
Nov	2.5 hours/day
Dec	2.8 hours/day
Average	3.5 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Humidity

Daylight Hours #

San Juan experiences a relatively small variation in sunrise and sunset times throughout the year due to its tropical location. The sunrise varies by about an hour and sunset by around 1.5 hours.
Day length in San Juan fluctuates between 11 and 13 hours, with the longest days occurring in June and the shortest in December. This limited range is characteristic of locations near the equator.

Sunrise Time

Sunrise times are output in the local timezone of each place.

Sunset Time

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	San Juan
Jan	11:09 hours
Feb	11:25 hours
Mar	11:34 hours
Apr	11:41 hours
May	11:51 hours
Jun	12:02 hours
Jul	12:04 hours
Aug	11:50 hours
Sep	11:26 hours
Oct	11:02 hours
Nov	10:48 hours
Dec	10:52 hours
Average	11:30 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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