NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.

Station SJNP4 - 9755371 - San Juan, La Puntilla, San Juan Bay, PR Image indicating link to RSS feed of recent meteorological observations for station SJNP4


Conditions at SJNP4 as of
(3:48 pm AST)
1948 GMT on 04/02/2025:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Wind Direction Wind Direction (WDIR):ENE ( 70 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 13.0 kts
5-day plot - Wind Gust Wind Gust (GST): 19.0 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):30.05 in
5-day plot - Water Temperature Water Temperature (WTMP): 81.7 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 13.6 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 15.5 kts
5-day plot -  Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
NOS Water Level Observation Network Water Level
Previous observations
TIME
(AST)
5-day plot - Wind Direction
WDIR
 
5-day plot - Wind Speed
WSPD
kts
5-day plot - Wind Gust
GST
kts
5-day plot - Wave Height
WVHT
ft
5-day plot - Dominant Wave Period
DPD
sec
5-day plot - Average Wave Period
APD
sec
5-day plot - Mean Wave Direction
MWD
 
5-day plot - Atmospheric Pressure
PRES
in
5-day plot - Pressure Tendency
PTDY
in
5-day plot - Air Temperature
ATMP
°F
5-day plot - Water Temperature
WTMP
°F
5-day plot - Dew Point
DEWP
°F
5-day plot - Salinity
SAL
psu
5-day plot - Visibility
VIS
nmi
5-day plot - Tide (above MLLW)
TIDE
ft
2025-04-02 03:42 pmENE 14.0 18.1----30.05-- 81.7----
2025-04-02 03:36 pmENE 15.0 18.1----30.05-- 81.7----
2025-04-02 03:30 pmENE 14.0 18.1----30.05- 80.8 81.7----
2025-04-02 03:24 pm E 15.0 20.0----30.05- 80.6 81.5----
2025-04-02 03:18 pm E 17.1 20.0----30.05- 80.6 81.7----
2025-04-02 03:12 pmENE 15.0 20.0----30.05- 80.8 81.7----
2025-04-02 03:06 pmENE 18.1 22.9----30.05- 81.0 81.5----
2025-04-02 03:00 pm E 17.1 20.0----30.05-0.05 80.8 81.5----
2025-04-02 02:54 pm E 14.0 17.1----30.06- 80.6 81.5----
2025-04-02 02:48 pm E 12.0 17.1----30.06-- 81.5----
2025-04-02 02:42 pm E 15.9 21.0----30.06-- 81.5----
2025-04-02 02:36 pm E 19.0 22.0----30.06-- 81.5----
2025-04-02 02:30 pm E 18.1 22.9----30.06- 80.6 81.5----
2025-04-02 02:24 pm E 18.1 22.0----30.06- 79.9 81.5----
2025-04-02 02:18 pm E 17.1 22.0----30.06- 79.9 81.5----
2025-04-02 02:12 pm E 17.1 24.1----30.07- 79.2 81.5----
2025-04-02 02:06 pm E 15.9 21.0----30.07- 80.1 81.5----
2025-04-02 02:00 pmESE 12.0 17.1----30.07-0.04 80.1 81.5----
2025-04-02 01:54 pmESE 11.1 14.0----30.07- 79.0 81.5----
2025-04-02 01:48 pmESE 11.1 14.0----30.07-- 81.5----
2025-04-02 01:42 pmESE 12.0 17.1----30.08-- 81.5----
2025-04-02 01:36 pmESE 14.0 17.1----30.08-- 81.5----
2025-04-02 01:30 pmESE 14.0 17.1----30.08- 76.1 81.5----
2025-04-02 01:24 pmESE 15.9 21.0----30.08- 75.4 81.5----
2025-04-02 01:18 pmESE 20.0 32.1----30.09- 75.0 81.5----
2025-04-02 01:12 pm E 28.0 34.0----30.08- 78.4 81.5----
2025-04-02 01:06 pm E 15.9 22.0----30.09- 81.1 81.5----
2025-04-02 01:00 pm E 19.0 22.0----30.09-0.04 81.1 81.5----
2025-04-02 12:54 pm E 17.1 21.0----30.09- 81.3 81.5----
2025-04-02 12:48 pmENE 15.9 21.0----30.09-- 81.5----
2025-04-02 12:42 pm E 18.1 24.1----30.09-- 81.5----
2025-04-02 12:36 pmENE 17.1 22.9----30.09-- 81.5----
2025-04-02 12:30 pm E 18.1 21.0----30.09- 81.1 81.5----
2025-04-02 12:24 pmENE 17.1 21.0----30.10- 81.3 81.5----
2025-04-02 12:18 pmENE 15.9 20.0----30.10- 81.7 81.3----
2025-04-02 12:12 pm E 17.1 20.0----30.10- 81.7 81.3----
2025-04-02 12:06 pm E 14.0 21.0----30.10- 81.7 81.3----
2025-04-02 12:00 pm E 17.1 22.9----30.10+0.00 81.5 81.3----
2025-04-02 11:54 amENE 15.9 24.1----30.11- 81.5 81.3----
2025-04-02 11:48 am E 18.1 22.9----30.10-- 81.3----
2025-04-02 11:42 amENE 18.1 22.0----30.11-- 81.3----
2025-04-02 11:36 amENE 20.0 24.1----30.11-- 81.1----
2025-04-02 11:30 am E 18.1 22.0----30.11- 81.5 81.1----
2025-04-02 11:24 am E 20.0 22.9----30.11- 81.3 81.1----
2025-04-02 11:18 am E 17.1 22.0----30.11-- 81.1----
2025-04-02 11:12 am E 20.0 24.1----30.11-- 81.1----
2025-04-02 11:06 am E 19.0 25.1----30.11-- 81.1----
2025-04-02 11:00 am E 20.0 21.0----30.11+0.02 81.3 81.1----
2025-04-02 10:54 am E 18.1 22.0----30.11- 81.3 81.1----
2025-04-02 10:48 am E 19.0 25.1----30.11-- 81.3----
2025-04-02 10:42 am E 19.0 22.9----30.11-- 81.3----
2025-04-02 10:36 am E 15.9 22.0----30.11-- 81.3----
2025-04-02 10:30 am E 18.1 21.0----30.11- 81.1 81.3----
2025-04-02 10:24 am E 14.0 15.9----30.11- 80.8 81.1----
2025-04-02 10:18 amENE 13.0 15.0----30.12- 79.9 81.1----
2025-04-02 10:12 amENE 13.0 15.0----30.12- 79.5 81.1----
2025-04-02 10:06 am E 7.0 8.9----30.12- 79.2 81.1----
2025-04-02 10:00 amENE 5.1 14.0----30.12+0.05 78.8 81.1----
2025-04-02 09:54 amESE 8.0 9.9----30.12- 78.1 81.1----
2025-04-02 09:48 amESE 7.0 8.0----30.12-- 81.1----
2025-04-02 09:42 amESE 7.0 11.1----30.12-- 81.1----
2025-04-02 09:36 am E 11.1 13.0----30.12-- 81.1----
2025-04-02 09:30 am E 11.1 12.0----30.12- 77.2 81.1----
2025-04-02 09:24 am E 8.9 13.0----30.12- 76.6 81.0----
2025-04-02 09:18 am E 12.0 15.9----30.11- 76.5 81.0----
2025-04-02 09:12 am E 13.0 17.1----30.11- 76.3 81.0----
2025-04-02 09:06 am E 13.0 20.0----30.11- 76.1 81.0----
2025-04-02 09:00 am E 18.1 22.0----30.11+0.05 75.9 81.0----
2025-04-02 08:54 am E 18.1 24.1----30.11- 75.0 81.0----
2025-04-02 08:48 am E 21.0 26.0----30.11-- 81.0----
2025-04-02 08:42 am E 22.0 29.9----30.11-- 81.0----
2025-04-02 08:36 am E 25.1 29.9----30.10-- 81.1----
2025-04-02 08:30 am E 14.0 18.1----30.10- 78.8 81.1----
2025-04-02 08:24 am E 14.0 18.1----30.09- 79.0 81.1----
2025-04-02 08:18 am E 14.0 21.0----30.09- 78.6 81.1----
2025-04-02 08:12 am E 12.0 17.1----30.09- 78.6 81.1----
2025-04-02 08:06 am E 14.0 15.9----30.09- 78.4 81.1----
2025-04-02 08:00 am E 13.0 15.0----30.09+0.05 78.4 81.1----
2025-04-02 07:54 am E 13.0 18.1----30.09- 78.3 81.0----
2025-04-02 07:48 am E 14.0 19.0----30.09-- 81.0----
2025-04-02 07:42 am E 14.0 17.1----30.09-- 81.0----
2025-04-02 07:36 am E 14.0 18.1----30.08-- 81.0----
2025-04-02 07:30 am E 13.0 15.0----30.08- 77.5 81.0----
2025-04-02 07:24 am E 14.0 18.1----30.08- 77.2 81.0----
2025-04-02 07:18 am E 11.1 21.0----30.08- 77.2 81.0----
2025-04-02 07:12 am E 12.0 15.9----30.08- 76.8 81.0----
2025-04-02 07:06 am E 11.1 14.0----30.07- 76.8 81.0----
2025-04-02 07:00 am E 11.1 13.0----30.07+0.04 76.1 81.0----
2025-04-02 06:54 am E 12.0 14.0----30.07- 76.1 81.0----
2025-04-02 06:48 am E 14.0 17.1----30.07-- 81.0----
2025-04-02 06:42 am E 14.0 19.0----30.07-- 81.0----
2025-04-02 06:36 am E 13.0 15.9----30.07-- 81.0----
2025-04-02 06:30 am E 15.9 20.0----30.07- 75.4 81.1----
2025-04-02 06:24 am E 20.0 22.9----30.07- 75.2 81.1----
2025-04-02 06:18 am E 9.9 12.0----30.07- 76.3 81.1----
2025-04-02 06:12 amESE 8.9 9.9----30.06- 76.3 81.1----
2025-04-02 06:06 amESE 8.0 9.9----30.06- 76.5 81.1----
2025-04-02 06:00 amESE 8.0 9.9----30.06+0.02 76.5 81.1----
2025-04-02 05:54 am E 8.0 11.1----30.05- 76.1 81.1----
2025-04-02 05:48 am E 6.0 8.9----30.05-- 81.1----
2025-04-02 05:42 am E 7.0 8.0----30.05-- 81.1----
2025-04-02 05:36 am E 6.0 8.0----30.05-- 81.1----
2025-04-02 05:30 am E 6.0 8.0----30.04- 75.4 81.1----
2025-04-02 05:24 amESE 7.0 8.9----30.04- 75.4 81.1----
2025-04-02 05:18 am-------30.04- 75.2 81.1----
2025-04-02 05:12 am-------30.04- 75.0 81.1----
2025-04-02 05:06 am-------30.05- 76.5 81.1----
2025-04-02 05:00 am E 8.9 9.9----30.04+0.00 76.1 81.1----
2025-04-02 04:54 am E 11.1 15.0----30.04- 76.3 81.1----
2025-04-02 04:48 am E 12.0 15.9----30.03- 75.7 81.1----
2025-04-02 04:42 amENE 14.0 18.1----30.03- 75.2 81.1----
2025-04-02 04:36 am E 19.0 25.1----30.03- 75.4 81.1----
2025-04-02 04:30 am E 17.1 19.0----30.03- 77.9 81.1----
2025-04-02 04:24 am E 14.0 19.0----30.03- 77.4 81.1----
2025-04-02 04:18 am E 14.0 17.1----30.03- 77.2 81.3----
2025-04-02 04:12 am E 8.9 15.9----30.03- 77.0 81.3----
2025-04-02 04:06 am E 14.0 15.9----30.03- 77.5 81.3----
2025-04-02 04:00 am E 11.1 15.0----30.03-0.04 77.9 81.3----
2025-04-02 03:54 am E 8.0 11.1----30.03- 78.1 81.3----
2025-04-02 03:48 am E 9.9 12.0----30.03-- 81.3----
2025-04-02 03:42 am E 8.9 11.1----30.03-- 81.3----
2025-04-02 03:36 am E 8.9 13.0----30.03-- 81.3----
2025-04-02 03:30 am E 12.0 14.0----30.03- 78.4 81.3----
2025-04-02 03:24 am E 9.9 11.1----30.04- 77.9 81.3----
2025-04-02 03:18 am E 8.0 11.1----30.03- 77.7 81.3----
2025-04-02 03:12 am E 8.0 11.1----30.03- 77.5 81.3----
2025-04-02 03:06 amESE 8.9 11.1----30.03- 77.5 81.3----
2025-04-02 03:00 am E 9.9 11.1----30.04-0.04 77.5 81.3----
2025-04-02 02:54 am E 8.9 11.1----30.04- 77.5 81.3----
2025-04-02 02:48 amESE 9.9 11.1----30.04-- 81.3----
2025-04-02 02:42 amESE 8.9 12.0----30.05-- 81.3----
2025-04-02 02:36 am E 9.9 14.0----30.05-- 81.3----
2025-04-02 02:30 am E 11.1 14.0----30.05- 78.1 81.3----
2025-04-02 02:24 am E 13.0 17.1----30.04- 78.1 81.3----
2025-04-02 02:18 am E 15.9 20.0----30.04- 77.4 81.3----
2025-04-02 02:12 am E 11.1 13.0----30.05- 78.6 81.3----
2025-04-02 02:06 amESE 9.9 14.0----30.05- 78.4 81.3----
2025-04-02 02:00 am E 9.9 12.0----30.05-0.03 78.4 81.3----
2025-04-02 01:54 am E 8.0 11.1----30.05- 78.8 81.3----
2025-04-02 01:48 am E 9.9 12.0----30.05-- 81.3----
2025-04-02 01:42 am E 8.0 12.0----30.05-- 81.3----
2025-04-02 01:36 am E 11.1 14.0----30.06-- 81.3----
2025-04-02 01:30 am E 8.9 12.0----30.06- 78.3 81.3----
2025-04-02 01:24 am E 9.9 12.0----30.06- 78.3 81.3----
2025-04-02 01:18 am E 11.1 14.0----30.06- 78.3 81.3----
2025-04-02 01:12 am E 8.9 12.0----30.06- 78.4 81.3----
2025-04-02 01:06 am E 8.9 12.0----30.07- 78.3 81.3----
2025-04-02 01:00 am E 8.9 12.0----30.07+0.00 78.6 81.5----
2025-04-02 12:54 am E 9.9 12.0----30.07- 78.4 81.5----
2025-04-02 12:48 am E 8.9 9.9----30.07-- 81.5----
2025-04-02 12:42 am E 8.0 11.1----30.07-- 81.5----
2025-04-02 12:36 am E 9.9 12.0----30.08-- 81.5----
2025-04-02 12:30 amESE 9.9 12.0----30.08- 78.4 81.5----
2025-04-02 12:24 am E 11.1 15.0----30.08- 78.6 81.5----
2025-04-02 12:18 am E 9.9 12.0----30.08- 78.4 81.5----
2025-04-02 12:12 am E 9.9 13.0----30.08- 78.4 81.5----
2025-04-02 12:06 am E 11.1 13.0----30.08- 78.4 81.5----
2025-04-02 12:00 am E 9.9 12.0----30.08+0.01 78.4 81.5----
2025-04-01 11:54 pmESE 8.9 13.0----30.08- 78.6 81.5----
2025-04-01 11:48 pmESE 11.1 14.0----30.08-- 81.5----
2025-04-01 11:42 pm E 9.9 13.0----30.08-- 81.5----
2025-04-01 11:36 pm E 12.0 17.1----30.08-- 81.5----
2025-04-01 11:30 pmESE 15.0 22.0----30.08- 77.7 81.5----
2025-04-01 11:24 pmESE 12.0 20.0----30.08- 79.7 81.7----
2025-04-01 11:18 pm E 17.1 20.0----30.07-- 81.7----
2025-04-01 11:12 pm E 17.1 20.0----30.07-- 81.7----
2025-04-01 11:06 pm E 11.1 19.0----30.08-- 81.7----
2025-04-01 11:00 pm E 18.1 20.0----30.08+0.03 80.2 81.7----
2025-04-01 10:54 pm E 17.1 22.0----30.08- 80.2 81.7----
2025-04-01 10:48 pm E 15.0 21.0----30.07-- 81.9----
2025-04-01 10:42 pm E 14.0 21.0----30.08-- 81.9----
2025-04-01 10:36 pm E 11.1 14.0----30.08-- 81.9----
2025-04-01 10:30 pm E 9.9 18.1----30.08- 80.1 81.9----
2025-04-01 10:24 pm E 17.1 21.0----30.07- 80.1 81.9----
2025-04-01 10:18 pm E 14.0 21.0----30.08- 80.1 81.9----
2025-04-01 10:12 pm E 14.0 17.1----30.08- 80.1 81.9----
2025-04-01 10:06 pm E 12.0 15.9----30.08- 79.9 81.9----
2025-04-01 10:00 pm E 9.9 13.0----30.07+0.05 79.7 81.9----
2025-04-01 09:54 pmESE 8.0 11.1----30.07- 79.3 81.7----
2025-04-01 09:48 pmESE 9.9 12.0------- 81.9----
2025-04-01 09:42 pmESE 11.1 14.0------- 81.9----
2025-04-01 09:36 pm E 12.0 15.0------- 81.9----
2025-04-01 09:30 pm E 11.1 15.9----30.07- 80.2 81.9----
2025-04-01 09:24 pm E 12.0 14.0----30.07- 79.9 81.9----
2025-04-01 09:18 pm E 14.0 17.1----30.06- 79.9 81.9----
2025-04-01 09:12 pm E 15.9 19.0----30.06- 79.9 81.9----
2025-04-01 09:06 pm E 13.0 18.1----30.06- 80.1 81.9----
2025-04-01 09:00 pmENE 13.0 18.1----30.06+0.05 79.9 81.9----
2025-04-01 08:54 pm E 14.0 18.1----30.06- 79.9 81.9----
2025-04-01 08:48 pm E 15.9 18.1----30.06-- 81.9----
2025-04-01 08:42 pm E 14.0 22.0----30.06-- 81.7----
2025-04-01 08:36 pmENE 15.0 19.0----30.06-- 81.9----
2025-04-01 08:30 pm E 13.0 17.1----30.06- 80.1 81.9----
2025-04-01 08:24 pmENE 14.0 19.0----30.06- 79.7 81.9----
2025-04-01 08:18 pm E 13.0 18.1----30.05- 79.9 81.9----
2025-04-01 08:12 pm E 13.0 17.1----30.05- 79.7 81.7----
2025-04-01 08:06 pm E 14.0 17.1----30.05- 79.5 81.7----
2025-04-01 08:00 pm E 13.0 17.1----30.05+0.05 79.5 81.5----
2025-04-01 07:54 pm E 15.9 18.1----30.05- 79.3 81.7----
2025-04-01 07:48 pm E 13.0 15.9----30.05-- 81.7----
2025-04-01 07:42 pm E 15.0 17.1----30.04-- 81.7----
2025-04-01 07:36 pmENE 8.9 15.9----30.04-- 81.7----
2025-04-01 07:30 pmENE 13.0 15.0----30.04- 79.3 81.7----
2025-04-01 07:24 pm E 14.0 17.1----30.04- 79.2 81.7----
2025-04-01 07:18 pm E 15.9 20.0----30.04- 79.2 81.7----
2025-04-01 07:00 pm E 15.0 17.1----30.03+0.03 79.5 81.7----
2025-04-01 06:54 pm E 13.0 19.0----30.03- 79.5 81.7----
2025-04-01 06:48 pm E 13.0 20.0----30.03-- 81.7----
2025-04-01 06:42 pmENE 15.0 21.0----30.03-- 81.7----
2025-04-01 06:36 pmENE 19.0 22.9----30.02-- 81.7----
2025-04-01 06:30 pmENE 14.0 18.1----30.02- 79.7 81.7----
2025-04-01 06:24 pm E 14.0 21.0----30.02- 79.5 81.7----
2025-04-01 06:18 pmENE 18.1 21.0----30.02- 79.3 81.9----
2025-04-01 06:12 pm E 15.0 20.0----30.02- 80.4 81.9----
2025-04-01 06:06 pmENE 12.0 19.0----30.01- 80.6 81.9----
2025-04-01 06:00 pm E 15.9 20.0----30.01+0.00 80.4 81.9----
2025-04-01 05:54 pmENE 15.0 18.1----30.01- 80.4 81.9----
2025-04-01 05:48 pm E 15.0 20.0----30.01-- 81.9----
2025-04-01 05:42 pmENE 19.0 22.0----30.01-- 81.9----
2025-04-01 05:36 pm E 14.0 20.0----30.01-- 81.9----
2025-04-01 05:30 pmENE 18.1 21.0----30.01- 81.1 81.9----
2025-04-01 05:24 pmENE 17.1 22.0----30.00- 81.1 81.9----
2025-04-01 05:18 pm E 19.0 24.1----30.00- 81.1 81.9----
2025-04-01 05:12 pmENE 15.9 22.0----30.00- 81.0 81.9----
2025-04-01 05:06 pmENE 17.1 21.0----30.00- 81.0 81.9----
2025-04-01 05:00 pmENE 17.1 22.0----30.00-0.03 81.0 81.9----
2025-04-01 04:54 pmENE 15.0 21.0----30.00- 81.1 81.9----
2025-04-01 04:48 pm E 17.1 21.0----30.00-- 81.9----
2025-04-01 04:42 pmENE 17.1 22.0----30.00-- 81.9----
2025-04-01 04:36 pm E 18.1 22.0----30.00-- 81.9----
2025-04-01 04:30 pmENE 18.1 25.1----30.00- 81.1 81.9----
2025-04-01 04:24 pmENE 18.1 21.0----30.00- 81.3 81.9----
2025-04-01 04:18 pmENE 18.1 21.0----30.00- 81.3 81.9----
2025-04-01 04:12 pmENE 19.0 25.1----30.00- 81.5 81.9----
2025-04-01 04:06 pmENE 17.1 26.0----30.00- 81.7 81.9----
2025-04-01 04:00 pm E 19.0 26.0----30.00-0.05 81.7 81.9----
2025-04-01 03:54 pm E 18.1 24.1----30.00- 81.7 81.9----