Tomorrow in San Juan: Hot, with rain likely, high of 32°
Sunday 1 November at Luis Munoz Marin International Airport (SJU), Puerto Rico
Tomorrow at SJU
High32°
Likely 31°–33°
Rain likely
Low 26°, likely 25°–27°
74% chance of rain
Wind up to 25 km/h
Humidity 76%
Through the day
Times are local; night hours are shaded. The line is a sketch, not an hour-by-hour forecast: this airport's typical daily temperature cycle, scaled to tomorrow's high and low.
Tomorrow's high should be 1° warmer than today's, and 1° warmer than the normal high for 1 November. Expect rain at some point in the day (74% chance).
How sure we are
Shaded: the likely range (an 80% range). In our tests, eight days in ten ended inside it.
Right now at SJU
31°, partly cloudy, wind from the northeast at 19 km/h.
Latest airport report, 13:00 local time.
The details
Chance of rain
74% normal 57%
Chance of thunder
22%
Chance of fog
1% or less
Strongest wind
25 km/h
Strongest gust
33 km/h
Average humidity
76%
Daytime sky
Rain likely
Chances are for the local day. Rain means rain, drizzle or snow in at least one hourly airport report; fog means fog or visibility under 1 km in at least one. "Normal" is this airport's usual chance for the date. Wind and gust are the strongest of the day.
How our forecasts did here
Each band is the forecast high ±2°, each dot what the airport measured. Highs more than 2° off are in bold. Rained means rain or snow was reported that day.
Day
High forecast
High measured
Where it landed
Low forecast
Low measured
Rain chance
Rained
Fri 30 Oct
32°
31°
26°
25°
64%
Yes
Thu 29 Oct
33°
33°
26°
27°
55%
Yes
Wed 28 Oct
32°
34°
26°
27°
42%
Yes
Tue 27 Oct
34°
34°
27°
27°
37%
No
Sun 25 Oct
33°
33°
27°
27°
43%
Yes
Fri 23 Oct
33°
33°
27°
26°
35%
No
Thu 22 Oct
33°
33°
26°
27°
23%
Yes
Wed 21 Oct
31°
34°
25°
25°
50%
No
Tue 20 Oct
31°
31°
26°
26°
57%
No
Sun 18 Oct
31°
29°
26°
26°
52%
Yes
Sat 17 Oct
31°
31°
26°
26°
55%
Yes
Fri 16 Oct
32°
32°
26°
27°
64%
No
Thu 15 Oct
32°
32°
26°
26°
52%
Yes
Wed 14 Oct
31°
31°
26°
26°
68%
Yes
The forecast high was within 2° on 12 of the last 14 scored days. Days that could not be scored are left out. Forecasts before 27 October did not yet use ECMWF and were less accurate on average.
"Measured" is the highest and lowest hourly airport report of the local day. Official daily highs and lows can differ a little: at US airports the official high averages about 0.4° higher and the official low about 0.5° lower. More