San Sebastian, Puerto Rico Weather
18.337, -66.990 · America/Puerto_Rico
Updated Oct 19, 5:00 PM | Source NOAA / National Weather Service
Current weather in San Sebastian, Puerto Rico is 81°F / 27°C and showers and thunderstorms with winds at 2 mph from the north-northeast. Humidity is 81%, with a 100% chance of precipitation today. The 7-day outlook shows highs of 91 to 91°F (33 to 33°C) and lows of 70 to 72°F (21 to 22°C). Rain is likely on most days.
Current conditions
81°F
Showers And Thunderstorms
High 91°F / 33°C · Low 70°F / 21°C
ⓘ About this reading (NWS)
Current conditions: the NWS gridpoint forecast for this hour (no recent station observation was available).
Forecast highs, lows and hourly values: the NWS Gridpoint Forecast for the grid cell that contains this location, issued by the NWS SJU Area Forecast Office.
Open-Meteo model estimates supplement fields not reported by NWS.
A gridpoint forecast describes the average over its grid cell, while a station measures one spot (often an airport), so the two can differ by a few degrees, especially during strong winter temperature inversions, which are common around Fairbanks.
Showers and thunderstorms, rain is likely today, humidity makes it feel warmer than the actual temperature, winds are light.
87°F / 31°C
2 mph / 3 km/h NNE
81%
6 mi / 10 km
100%
—
Hourly Forecast
5 PM
81°
Showers And Thunderstorms
100% · 2 mph
6 PM
79°
Scattered Rain Showers
40% · 3 mph
7 PM
78°
Scattered Rain Showers
40% · 3 mph
8 PM
77°
Scattered Rain Showers
40% · 3 mph
9 PM
76°
Mostly Clear
0% · 3 mph
10 PM
74°
Mostly Clear
0% · 3 mph
11 PM
74°
Mostly Clear
0% · 3 mph
All hours shown in local time for this location (America/Puerto_Rico).
7-day Forecast
Rain is likely on most days.
Today
Oct 19
Showers And Thunderstorms
High 91°Low 70°
100% precip
Wind 2 mph
Tue
Oct 20
Partly Sunny then Chance Showers And Thunderstorms
High 91°Low 72°
60% precip
Wind 3 mph
Wed
Oct 21
Mostly Sunny then Scattered Rain Showers
High 91°Low 72°
40% precip
Wind 5 mph
Thu
Oct 22
Chance Showers And Thunderstorms
High 91°Low 72°
70% precip
Wind 1 mph
Fri
Oct 23
Mostly Sunny then Chance Showers And Thunderstorms
High 91°Low 72°
70% precip
Wind 3 mph
Sat
Oct 24
Chance Showers And Thunderstorms
High 91°Low 72°
60% precip
Wind 2 mph
Sun
Oct 25
Mostly Sunny then Scattered Showers And Thunderstorms
High 91°Low 72°
50% precip
Wind 2 mph
Weather Alerts
1 active alert for this location.
Flood Advisory
minorexpected · likelyFlood Advisory issued October 19 at 2:39PM AST until October 19 at 5:45PM AST by NWS San Juan PR
From Oct 19, 2:39 PM · Until Oct 19, 5:45 PM
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Issued by NWS San Juan PR · Camuy, PR, Isabela, PR, Lares, PR, Moca, PR…
How Today's Weather Affects the Sky
A 100% chance of precipitation today means clouds are likely to obscure much of tonight's sky.
For moon phase, aurora conditions, and exact visibility at your location tonight, see Sky Tonight.
Sources: NOAA/National Weather Service (US alerts) and Open-Meteo (global weather). Each section labels its own source, last update and freshness state. Always follow official local guidance during severe weather.
Live Radar — San Sebastian, Puerto Rico
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