Monthly outlook for Sabana Grande, PR: average high 89.1°, average low 73.8°. That is 0.3° above the climate normal for August. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 8 days and 1.7 inches. The warmest day looks like 14 August (92.8°), the coolest 14 August (71.5°).
89.1°/73.8°
Average high / low
+0.3°
Above normal
6 / 8
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
89.8°
88.7°
+0.6°
19 August – 28 August
88°
88.2°
-0.1°
29 August – 7 September
at normal
87.9°
—
August records over 66 years
94.8°7 August 2009All-time high
68.4°7 August 2025All-time low
Mon, 1089° / 76°0
89 °
Sabana Grande, Monday, 10 August
Overcast. High 89°, low 76°.
Pressure30.03 inHg
Wind15.4 mph SE
Humidity44%
Visibility6.2 mi
Dew point67°
Tue, 1189° / 73°0.14
89 °
Sabana Grande, Tuesday, 11 August
Light rain. High 89°, low 73°.
Pressure30.03 inHg
Wind14.6 mph SE
Humidity54%
Visibility6.2 mi
Dew point70°
Wed, 1289° / 74°0.03
89 °
Sabana Grande, Wednesday, 12 August
Light rain. High 89°, low 74°.
Pressure30.00 inHg
Wind15.3 mph SE
Humidity50%
Visibility6.2 mi
Dew point69°
Thu, 1390° / 74°0
90 °
Sabana Grande, Thursday, 13 August
Overcast. High 90°, low 74°.
Pressure30.06 inHg
Wind17.5 mph SE
Humidity51%
Visibility—
Dew point66°
Fri, 1493° / 71°0
93 °
Sabana Grande, Friday, 14 August
Clear. High 93°, low 71°.
Pressure30.09 inHg
Wind18.4 mph SE
Humidity45%
Visibility—
Dew point64°
Sat, 1592° / 73°0
92 °
Sabana Grande, Saturday, 15 August
Clear. High 92°, low 73°.
Pressure30.03 inHg
Wind20.6 mph SE
Humidity48%
Visibility—
Dew point65°
Sun, 1692° / 72°0
92 °
Sabana Grande, Sunday, 16 August
Partly cloudy. High 92°, low 72°.
Pressure30.00 inHg
Wind13.6 mph SE
Humidity48%
Visibility—
Dew point65°
Mon, 1789° / 72°0
89 °
Sabana Grande, Monday, 17 August
Overcast. High 89°, low 72°.
Pressure29.97 inHg
Wind7 mph SE
Humidity53%
Visibility—
Dew point66°
Tue, 1889° / 74°0.1
89 °
Sabana Grande, Tuesday, 18 August
Light rain. High 89°, low 74°.
Pressure29.97 inHg
Wind8.3 mph S
Humidity52%
Visibility—
Dew point67°
Wed, 1989° / 77°0.2
89 °
Sabana Grande, Wednesday, 19 August
Light rain. High 89°, low 77°.
Pressure30.03 inHg
Wind14.9 mph SE
Humidity55%
Visibility—
Dew point69°
Thu, 2089° / 75°0.92
89 °
Sabana Grande, Thursday, 20 August
Heavy rain. High 89°, low 75°.
Pressure30.00 inHg
Wind8.5 mph SE
Humidity54%
Visibility—
Dew point68°
Fri, 2187° / 73°0.36
87 °
Sabana Grande, Friday, 21 August
Rain. High 87°, low 73°.
Pressure30.00 inHg
Wind9.5 mph SE
Humidity57%
Visibility—
Dew point68°
Sat, 2288° / 72°0
88 °
Sabana Grande, Saturday, 22 August
Overcast. High 88°, low 72°.
Pressure30.00 inHg
Wind13 mph SE
Humidity51%
Visibility—
Dew point65°
Sun, 2385° / 73°0.05
85 °
Sabana Grande, Sunday, 23 August
Light rain. High 85°, low 73°.
Pressure30.03 inHg
Wind16.1 mph SE
Humidity62%
Visibility—
Dew point69°
Mon, 2490° / 74°0
90 °
Sabana Grande, Monday, 24 August
Light rain. High 90°, low 74°.
Pressure30.06 inHg
Wind12.9 mph SE
Humidity45%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2588° / 76°0.12
88 °
Sabana Grande, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high92° (1960)
Record low69° (2024)
Wed, 2688° / 76°0.11
88 °
Sabana Grande, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.11 in
Chance of precipitation52%
Record high94° (1990)
Record low71° (2023)
Thu, 2788° / 76°0.09
88 °
Sabana Grande, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.09 in
Chance of precipitation55%
Record high94° (1990)
Record low71° (2020)
Fri, 2888° / 76°0.11
88 °
Sabana Grande, Friday, 28 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.11 in
Chance of precipitation52%
Record high92° (1992)
Record low72° (2024)
Sat, 2988° / 76°0.06
88 °
Sabana Grande, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.06 in
Chance of precipitation47%
Record high92° (1985)
Record low72° (2020)
Sun, 3088° / 76°0.16
88 °
Sabana Grande, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.16 in
Chance of precipitation52%
Record high94° (1994)
Record low70° (2025)
Mon, 3188° / 76°0.12
88 °
Sabana Grande, Monday, 31 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.12 in
Chance of precipitation38%
Record high93° (1960)
Record low73° (2021)
Tue, 0188° / 76°0.11
88 °
Sabana Grande, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.11 in
Chance of precipitation55%
Record high93° (2009)
Record low71° (2022)
Wed, 0288° / 76°0.11
88 °
Sabana Grande, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.11 in
Chance of precipitation57%
Record high94° (2009)
Record low71° (2022)
Thu, 0388° / 76°0.11
88 °
Sabana Grande, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.11 in
Chance of precipitation55%
Record high93° (2009)
Record low72° (2022)
Fri, 0488° / 76°0.1
88 °
Sabana Grande, Friday, 4 September
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.1 in
Chance of precipitation52%
Record high92° (1989)
Record low73° (2022)
Sat, 0588° / 76°0.21
88 °
Sabana Grande, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.21 in
Chance of precipitation45%
Record high92° (2021)
Record low70° (2024)
Sun, 0688° / 76°0.12
88 °
Sabana Grande, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.12 in
Chance of precipitation53%
Record high92° (1997)
Record low72° (2024)
Mon, 0788° / 76°0.13
88 °
Sabana Grande, Monday, 7 September
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.13 in
Chance of precipitation57%
Record high93° (1986)
Record low71° (2025)
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 Sabana Grande, 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 Sabana Grande, 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.