Monthly outlook for Rio Piedras, PR: average high 86°, average low 74.9°. That is 1.3° above the climate normal for November. Precipitation is expected on 11 days (about 1.5 inches), against a normal of 11 days and 2.0 inches. The warmest day looks like 15 November (88.8°), the coolest 30 November (71.3°).
86°/74.9°
Average high / low
+1.3°
Above normal
11 / 11
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
86.8°
84°
+1.5°
25 November – 4 December
84.8°
83.3°
+0.8°
5 December – 14 December
at normal
82.8°
—
November records over 66 years
93.2°3 November 1960All-time high
66.2°27 November 2021All-time low
Climate normals and records are computed from the nearest reference point — San Juan (1 mi).
Mon, 1686° / 75°0.1
86 °
Rio Piedras, Monday, 16 November
Rain. High 86°, low 75°.
Pressure30.03 inHg
Wind10.2 mph NE
Humidity65%
Visibility6.2 mi
Dew point73°
Tue, 1787° / 74°0.16
87 °
Rio Piedras, Tuesday, 17 November
Light rain. High 87°, low 74°.
Pressure30.00 inHg
Wind12 mph NE
Humidity63%
Visibility5.3 mi
Dew point73°
Wed, 1887° / 76°0.52
87 °
Rio Piedras, Wednesday, 18 November
Rain. High 87°, low 76°.
Pressure29.94 inHg
Wind10.2 mph E
Humidity71%
Visibility6.2 mi
Dew point74°
Thu, 1985° / 75°0.15
85 °
Rio Piedras, Thursday, 19 November
Light rain. High 85°, low 75°.
Pressure29.97 inHg
Wind6.5 mph E
Humidity73%
Visibility6.1 mi
Dew point74°
Fri, 2087° / 76°0.09
87 °
Rio Piedras, Friday, 20 November
Light rain. High 87°, low 76°.
Pressure29.97 inHg
Wind7.9 mph E
Humidity69%
Visibility—
Dew point73°
Sat, 2187° / 76°0
87 °
Rio Piedras, Saturday, 21 November
Partly cloudy. High 87°, low 76°.
Pressure29.97 inHg
Wind11.8 mph E
Humidity64%
Visibility—
Dew point72°
Sun, 2287° / 76°0
87 °
Rio Piedras, Sunday, 22 November
Overcast. High 87°, low 76°.
Pressure29.97 inHg
Wind13.1 mph E
Humidity62%
Visibility—
Dew point70°
Mon, 2387° / 76°0.01
87 °
Rio Piedras, Monday, 23 November
Light rain. High 87°, low 76°.
Pressure29.97 inHg
Wind12.9 mph E
Humidity62%
Visibility—
Dew point71°
Tue, 2487° / 75°0.06
87 °
Rio Piedras, Tuesday, 24 November
Light rain. High 87°, low 75°.
Pressure29.97 inHg
Wind11.6 mph E
Humidity64%
Visibility—
Dew point71°
Wed, 2586° / 75°0.08
86 °
Rio Piedras, Wednesday, 25 November
Light rain. High 86°, low 75°.
Pressure29.97 inHg
Wind10.3 mph E
Humidity65%
Visibility—
Dew point71°
Thu, 2687° / 76°0.04
87 °
Rio Piedras, Thursday, 26 November
Light rain. High 87°, low 76°.
Pressure29.94 inHg
Wind10.8 mph NE
Humidity61%
Visibility—
Dew point69°
Fri, 2785° / 76°0.12
85 °
Rio Piedras, Friday, 27 November
Light rain. High 85°, low 76°.
Pressure29.97 inHg
Wind8.2 mph NE
Humidity66%
Visibility—
Dew point71°
Sat, 2885° / 76°0.13
85 °
Rio Piedras, Saturday, 28 November
Light rain. High 85°, low 76°.
Pressure29.97 inHg
Wind11 mph NE
Humidity70%
Visibility—
Dew point71°
Sun, 2983° / 72°0.04
83 °
Rio Piedras, Sunday, 29 November
Light rain. High 83°, low 72°.
Pressure30.00 inHg
Wind11.9 mph NE
Humidity53%
Visibility—
Dew point62°
Mon, 3084° / 71°0.04
84 °
Rio Piedras, Monday, 30 November
Light rain. High 84°, low 71°.
Pressure30.00 inHg
Wind12.4 mph E
Humidity54%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0183° / 72°0.09
83 °
Rio Piedras, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.09 in
Chance of precipitation63%
Record high88° (2021)
Record low68° (2001)
Wed, 0283° / 72°0.09
83 °
Rio Piedras, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.09 in
Chance of precipitation63%
Record high90° (2024)
Record low67° (2020)
Thu, 0383° / 72°0.09
83 °
Rio Piedras, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.09 in
Chance of precipitation63%
Record high89° (2024)
Record low69° (1996)
Fri, 0483° / 72°0.1
83 °
Rio Piedras, Friday, 4 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.1 in
Chance of precipitation75%
Record high89° (2023)
Record low68° (2022)
Sat, 0583° / 72°0.1
83 °
Rio Piedras, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.1 in
Chance of precipitation55%
Record high89° (2024)
Record low68° (1973)
Sun, 0683° / 72°0.08
83 °
Rio Piedras, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.08 in
Chance of precipitation58%
Record high90° (2023)
Record low67° (2020)
Mon, 0783° / 72°0.09
83 °
Rio Piedras, Monday, 7 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.09 in
Chance of precipitation55%
Record high88° (1997)
Record low68° (1960)
Tue, 0883° / 72°0.08
83 °
Rio Piedras, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.08 in
Chance of precipitation57%
Record high88° (1997)
Record low68° (2022)
Wed, 0983° / 72°0.09
83 °
Rio Piedras, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.09 in
Chance of precipitation53%
Record high88° (1962)
Record low66° (2020)
Thu, 1082° / 72°0.08
82 °
Rio Piedras, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high82°
Average low72°
Average precipitation0.08 in
Chance of precipitation58%
Record high87° (1989)
Record low66° (2022)
Fri, 1183° / 72°0.08
83 °
Rio Piedras, Friday, 11 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.08 in
Chance of precipitation53%
Record high90° (2025)
Record low67° (1966)
Sat, 1283° / 72°0.07
83 °
Rio Piedras, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.07 in
Chance of precipitation52%
Record high89° (2025)
Record low66° (2018)
Sun, 1383° / 72°0.08
83 °
Rio Piedras, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.08 in
Chance of precipitation62%
Record high87° (1989)
Record low67° (2022)
Mon, 1483° / 71°0.07
83 °
Rio Piedras, Monday, 14 December
Climate normal for this date — 60-year average.
Average high83°
Average low71°
Average precipitation0.07 in
Chance of precipitation57%
Record high89° (2025)
Record low64° (2022)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Rio Piedras, PR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Rio Piedras, PR since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.