San Juan in january: average Weather, Temperature and Climate
Weather in San Juan in january 2025
The weather in San Juan in the month of january comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout january
perfect weather UV index: 7
Weather at 6am
77°F
Partly Cloudy
35% of time
31%
31%
4%
Weather at 12pm
81°F
Clear/Sunny
51% of time
25%
23%
2%
Weather at 6pm
77°F
Clear/Sunny
47% of time
35%
16%
3%
Weather at 3am
76°F
37%
33%
27%
4%
Evolution of daily average temperature and precipitation in San Juan in january
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in San Juan in january.
The climate of San Juan in january is perfect
The weather in january in San Juan is wet (with 1.7in of rainfall over 2 days). It should be noted an improvement from the previous month since in december it receives an average of 2.4in of rainfall over 4 days.
The climate quite nice here this month. Temperatures are up to 81°F. On average, the recorded minimum temperature is 77°F. Thus, the mean temperature average on this month of january in San Juan is 79°F. Note that these seasonal averages are in contrast with those observed in San Juan in january with a maximum record of 86°F in 2017 and a minimum record of 70°F in 2021.
On this month of january, day length in San Juan is generally 11:08. The sun rises at 07:00 and sets at 18:08.
With a good climate, the month of january is a good time to go there in Puerto Rico.
Seasonal average climate and temperature of San Juan in january
Check below seasonal norms These datas are generated from the weather statements of the last years of january.
| January | |||||
| Outside temperature | |||||
| Average temperature | 79°F | ||||
| Highest temperature | 81°F | ||||
| Lowest temperature | 77°F | ||||
| Highest record temperature | 86°F (2017) | ||||
| Lowest record temperature | 70°F (2021) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 80°F | ||||
| Lowest sea temperature | 78°F | ||||
| Highest sea temperature | 82°F | ||||
| Wind | |||||
| Wind speed | 20km/h | ||||
| Wind temperature | 77°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.7in | ||||
| Number of days with rainfall | 2 day(s) (6%) | ||||
| Record daily rainfall | 1.3in (2020) | ||||
| Other climate data | |||||
| Humidity | 81% | ||||
| Visibility | 9.85km | ||||
| Cloud cover | 33% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:00 | ||||
| Time of sunset | 18:08 | ||||
| Length of day | 11:08 | ||||
| Our opinion about the weather in january | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last january?
Here is the day by day recorded weather in San Juan in january 2024:
76°F to 81°F
76°F to 81°F
70°F to 79°F
74°F to 83°F
72°F to 81°F
76°F to 83°F
76°F to 83°F
76°F to 83°F
74°F to 81°F
74°F to 83°F
76°F to 81°F
76°F to 81°F
74°F to 83°F
74°F to 81°F
74°F to 81°F
74°F to 81°F
76°F to 83°F
77°F to 81°F
76°F to 83°F
74°F to 85°F
74°F to 83°F
76°F to 83°F
76°F to 81°F
74°F to 79°F
76°F to 79°F
74°F to 79°F
72°F to 79°F
72°F to 81°F
70°F to 83°F
70°F to 81°F
74°F to 79°F
Map: other cities in Puerto Rico in january
Cities near San Juan:
| Bayamón in january | perfect weather |
| Dorado in january | perfect weather |
| Carolina in january | perfect weather |
| Vega Alta in january | perfect weather |
| Caguas in january | perfect weather |
| Comerio in january | good weather |
| Cidra in january | good weather |
| Cayey in january | good weather |
| Aibonito in january | good weather |
| Manati in january | perfect weather |
| Luquillo in january | perfect weather |
| Humacao in january | perfect weather |
Click over cities on the map for information about the weather in january.
San Juan
perfect weather
good
tolerable
bad
very bad
Weather data for San Juan in january:
Weather data for San Juan for january are derived from an average of the weather forecast since 2009 in San Juan. There is a margin of error and these forecasts are to be considered as general information only. The weather in San Juan can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to San Juan.