Monthly outlook for Sierra Brava, PR: average high 87.8°, average low 74.7°. That is 2.4° above the climate normal for November. Precipitation is expected on 9 days (about 1.6 inches), against a normal of 10 days and 2.0 inches. The warmest day looks like 11 November (90.8°), the coolest 25 November (72.2°).
87.8°/74.7°
Average high / low
+2.4°
Above normal
9 / 10
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 November – 19 November
89°
83.8°
+2.9°
20 November – 29 November
85.9°
83°
+1.6°
30 November – 9 December
at normal
82.5°
—
November records over 66 years
92.5°3 November 1960All-time high
66.2°27 November 2021All-time low
Climate normals and records are computed from the nearest reference point — Guaynabo (3 mi).
Wed, 1191° / 77°0.08
91 °
Sierra Brava, Wednesday, 11 November
Light rain. High 91°, low 77°.
Pressure30.00 inHg
Wind6.4 mph E
Humidity59%
Visibility6.2 mi
Dew point73°
Thu, 1290° / 77°0.01
90 °
Sierra Brava, Thursday, 12 November
Light rain. High 90°, low 77°.
Pressure29.97 inHg
Wind7.7 mph SE
Humidity54%
Visibility6.2 mi
Dew point71°
Fri, 1390° / 78°0
90 °
Sierra Brava, Friday, 13 November
Mostly clear. High 90°, low 78°.
Pressure29.94 inHg
Wind9.6 mph SE
Humidity54%
Visibility6.2 mi
Dew point71°
Sat, 1489° / 78°0.17
89 °
Sierra Brava, Saturday, 14 November
Light rain. High 89°, low 78°.
Pressure29.94 inHg
Wind8 mph SE
Humidity64%
Visibility6.2 mi
Dew point76°
Sun, 1587° / 75°0.06
87 °
Sierra Brava, Sunday, 15 November
Light rain. High 87°, low 75°.
Pressure30.03 inHg
Wind7 mph NE
Humidity71%
Visibility—
Dew point74°
Mon, 1687° / 74°0
87 °
Sierra Brava, Monday, 16 November
Mostly clear. High 87°, low 74°.
Pressure30.03 inHg
Wind10.7 mph E
Humidity54%
Visibility—
Dew point66°
Tue, 1787° / 73°0.02
87 °
Sierra Brava, Tuesday, 17 November
Light rain. High 87°, low 73°.
Pressure29.97 inHg
Wind12.5 mph E
Humidity63%
Visibility—
Dew point71°
Wed, 1890° / 73°0
90 °
Sierra Brava, Wednesday, 18 November
Mostly clear. High 90°, low 73°.
Pressure29.94 inHg
Wind7.2 mph SE
Humidity51%
Visibility—
Dew point65°
Thu, 1990° / 74°0
90 °
Sierra Brava, Thursday, 19 November
Overcast. High 90°, low 74°.
Pressure29.97 inHg
Wind7.8 mph NE
Humidity55%
Visibility—
Dew point67°
Fri, 2089° / 75°0
89 °
Sierra Brava, Friday, 20 November
Mostly clear. High 89°, low 75°.
Pressure29.97 inHg
Wind8.1 mph NE
Humidity53%
Visibility—
Dew point66°
Sat, 2187° / 74°0.21
87 °
Sierra Brava, Saturday, 21 November
Light rain. High 87°, low 74°.
Pressure29.97 inHg
Wind9 mph E
Humidity59%
Visibility—
Dew point69°
Sun, 2285° / 74°0.09
85 °
Sierra Brava, Sunday, 22 November
Light rain. High 85°, low 74°.
Pressure29.97 inHg
Wind8.6 mph E
Humidity62%
Visibility—
Dew point69°
Mon, 2386° / 73°0.29
86 °
Sierra Brava, Monday, 23 November
Light rain. High 86°, low 73°.
Pressure29.94 inHg
Wind7.5 mph E
Humidity58%
Visibility—
Dew point68°
Tue, 2485° / 73°0.31
85 °
Sierra Brava, Tuesday, 24 November
Light rain. High 85°, low 73°.
Pressure29.94 inHg
Wind6.1 mph E
Humidity60%
Visibility—
Dew point68°
Wed, 2584° / 72°0.18
84 °
Sierra Brava, Wednesday, 25 November
Light rain. High 84°, low 72°.
Pressure29.97 inHg
Wind6.8 mph E
Humidity62%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2683° / 72°0.1
83 °
Sierra Brava, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.1 in
Chance of precipitation48%
Record high91° (2019)
Record low67° (1966)
Fri, 2783° / 72°0.07
83 °
Sierra Brava, Friday, 27 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.07 in
Chance of precipitation52%
Record high89° (2019)
Record low66° (2021)
Sat, 2883° / 72°0.07
83 °
Sierra Brava, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.07 in
Chance of precipitation43%
Record high88° (2023)
Record low68° (1970)
Sun, 2983° / 72°0.07
83 °
Sierra Brava, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.07 in
Chance of precipitation48%
Record high89° (2021)
Record low67° (1970)
Mon, 3083° / 71°0.07
83 °
Sierra Brava, Monday, 30 November
Climate normal for this date — 60-year average.
Average high83°
Average low71°
Average precipitation0.07 in
Chance of precipitation45%
Record high90° (2021)
Record low68° (2001)
Tue, 0183° / 71°0.09
83 °
Sierra Brava, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high83°
Average low71°
Average precipitation0.09 in
Chance of precipitation50%
Record high88° (2021)
Record low67° (1969)
Wed, 0283° / 72°0.08
83 °
Sierra Brava, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.08 in
Chance of precipitation43%
Record high90° (2024)
Record low67° (2020)
Thu, 0383° / 72°0.07
83 °
Sierra Brava, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.07 in
Chance of precipitation48%
Record high89° (2024)
Record low68° (1996)
Fri, 0482° / 71°0.07
82 °
Sierra Brava, Friday, 4 December
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.07 in
Chance of precipitation52%
Record high89° (2023)
Record low68° (1996)
Sat, 0582° / 71°0.09
82 °
Sierra Brava, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.09 in
Chance of precipitation53%
Record high89° (2024)
Record low68° (1973)
Sun, 0682° / 72°0.07
82 °
Sierra Brava, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high82°
Average low72°
Average precipitation0.07 in
Chance of precipitation45%
Record high90° (2023)
Record low67° (2020)
Mon, 0782° / 71°0.08
82 °
Sierra Brava, Monday, 7 December
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.08 in
Chance of precipitation45%
Record high88° (2025)
Record low67° (1960)
Tue, 0882° / 71°0.06
82 °
Sierra Brava, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.06 in
Chance of precipitation40%
Record high88° (1997)
Record low68° (1973)
Wed, 0982° / 71°0.07
82 °
Sierra Brava, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.07 in
Chance of precipitation42%
Record high88° (2023)
Record low66° (2020)
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 Sierra Brava, 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 Sierra Brava, 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.