Monthly outlook for Estación Santa Isabel, PR: average high 88.3°, average low 78.4°. That is 0.6° above the climate normal for August. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 8 days and 1.8 inches. The warmest day looks like 9 August (93.8°), the coolest 18 August (76.5°).
88.3°/78.4°
Average high / low
+0.6°
Above normal
1 / 8
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
88.8°
87.3°
+0.8°
19 August – 28 August
87.5°
86.9°
+0.3°
29 August – 7 September
at normal
86.6°
—
August records over 66 years
96.8°9 August 2022All-time high
71.4°22 August 1976All-time low
Climate normals and records are computed from the nearest reference point — Santa Isabel (1 mi).
Mon, 1091° / 81°0
91 °
Estación Santa Isabel, Monday, 10 August
Overcast. High 91°, low 81°.
Pressure30.06 inHg
Wind17 mph SE
Humidity57%
Visibility6.2 mi
Dew point71°
Tue, 1188° / 79°0.04
88 °
Estación Santa Isabel, Tuesday, 11 August
Light rain. High 88°, low 79°.
Pressure30.03 inHg
Wind18.8 mph SE
Humidity62%
Visibility6.2 mi
Dew point72°
Wed, 1286° / 78°0.01
86 °
Estación Santa Isabel, Wednesday, 12 August
Light rain. High 86°, low 78°.
Pressure30.03 inHg
Wind17.9 mph SE
Humidity68%
Visibility6.2 mi
Dew point74°
Thu, 1387° / 80°0
87 °
Estación Santa Isabel, Thursday, 13 August
Overcast. High 87°, low 80°.
Pressure30.06 inHg
Wind21.8 mph SE
Humidity61%
Visibility6.2 mi
Dew point71°
Fri, 1489° / 79°0
89 °
Estación Santa Isabel, Friday, 14 August
Overcast. High 89°, low 79°.
Pressure30.09 inHg
Wind20.9 mph E
Humidity54%
Visibility—
Dew point68°
Sat, 1590° / 78°0
90 °
Estación Santa Isabel, Saturday, 15 August
Mostly clear. High 90°, low 78°.
Pressure30.06 inHg
Wind20.8 mph E
Humidity54%
Visibility—
Dew point69°
Sun, 1690° / 77°0
90 °
Estación Santa Isabel, Sunday, 16 August
Clear. High 90°, low 77°.
Pressure30.03 inHg
Wind21.1 mph SE
Humidity52%
Visibility—
Dew point68°
Mon, 1790° / 77°0.02
90 °
Estación Santa Isabel, Monday, 17 August
Light rain. High 90°, low 77°.
Pressure29.94 inHg
Wind11.7 mph NE
Humidity48%
Visibility—
Dew point65°
Tue, 1885° / 76°0.02
85 °
Estación Santa Isabel, Tuesday, 18 August
Light rain. High 85°, low 76°.
Pressure30.03 inHg
Wind11.5 mph SE
Humidity68%
Visibility—
Dew point72°
Wed, 1987° / 78°0.01
87 °
Estación Santa Isabel, Wednesday, 19 August
Light rain. High 87°, low 78°.
Pressure30.09 inHg
Wind16.1 mph SE
Humidity63%
Visibility—
Dew point72°
Thu, 2088° / 78°0.06
88 °
Estación Santa Isabel, Thursday, 20 August
Light rain. High 88°, low 78°.
Pressure30.03 inHg
Wind18.5 mph SE
Humidity59%
Visibility—
Dew point71°
Fri, 2187° / 77°0.04
87 °
Estación Santa Isabel, Friday, 21 August
Light rain. High 87°, low 77°.
Pressure30.03 inHg
Wind20.7 mph SE
Humidity61%
Visibility—
Dew point71°
Sat, 2286° / 77°0.04
86 °
Estación Santa Isabel, Saturday, 22 August
Light rain. High 86°, low 77°.
Pressure30.06 inHg
Wind16.9 mph SE
Humidity69%
Visibility—
Dew point72°
Sun, 2389° / 79°0
89 °
Estación Santa Isabel, Sunday, 23 August
Clear. High 89°, low 79°.
Pressure30.12 inHg
Wind19.5 mph SE
Humidity61%
Visibility—
Dew point72°
Mon, 2487° / 80°0
87 °
Estación Santa Isabel, Monday, 24 August
Overcast. High 87°, low 80°.
Pressure30.06 inHg
Wind20.1 mph E
Humidity64%
Visibility—
Dew point73°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 76°0.11
87 °
Estación Santa Isabel, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.11 in
Chance of precipitation45%
Record high92° (1966)
Record low72° (1969)
Wed, 2687° / 76°0.1
87 °
Estación Santa Isabel, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.1 in
Chance of precipitation63%
Record high92° (1990)
Record low74° (1972)
Thu, 2787° / 76°0.09
87 °
Estación Santa Isabel, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.09 in
Chance of precipitation55%
Record high94° (2021)
Record low74° (1996)
Fri, 2887° / 76°0.13
87 °
Estación Santa Isabel, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.13 in
Chance of precipitation57%
Record high96° (2021)
Record low74° (1983)
Sat, 2987° / 76°0.07
87 °
Estación Santa Isabel, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.07 in
Chance of precipitation53%
Record high95° (2021)
Record low74° (1971)
Sun, 3087° / 76°0.18
87 °
Estación Santa Isabel, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.18 in
Chance of precipitation55%
Record high91° (2022)
Record low74° (1970)
Mon, 3187° / 76°0.14
87 °
Estación Santa Isabel, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.14 in
Chance of precipitation48%
Record high91° (1996)
Record low75° (2025)
Tue, 0187° / 76°0.09
87 °
Estación Santa Isabel, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.09 in
Chance of precipitation57%
Record high91° (2018)
Record low73° (1986)
Wed, 0286° / 76°0.1
86 °
Estación Santa Isabel, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.1 in
Chance of precipitation62%
Record high91° (2009)
Record low73° (1986)
Thu, 0387° / 76°0.1
87 °
Estación Santa Isabel, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.1 in
Chance of precipitation55%
Record high93° (2021)
Record low74° (1965)
Fri, 0487° / 76°0.1
87 °
Estación Santa Isabel, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.1 in
Chance of precipitation50%
Record high94° (2021)
Record low73° (1964)
Sat, 0587° / 76°0.23
87 °
Estación Santa Isabel, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.23 in
Chance of precipitation58%
Record high96° (2021)
Record low72° (1961)
Sun, 0687° / 76°0.12
87 °
Estación Santa Isabel, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high96° (2021)
Record low72° (1961)
Mon, 0786° / 76°0.17
86 °
Estación Santa Isabel, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.17 in
Chance of precipitation58%
Record high94° (2021)
Record low73° (1973)
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 Estación Santa Isabel, 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 Estación Santa Isabel, 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.