Monthly outlook for Santa Bárbara, PR: average high 88.5°, average low 77.6°. That is 1.1° above the climate normal for August. Precipitation is expected on 10 days (about 1.2 inches), against a normal of 12 days and 2.5 inches. The warmest day looks like 9 August (91°), the coolest 23 August (76.2°).
88.5°/77.6°
Average high / low
+1.1°
Above normal
10 / 12
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
88.5°
86.5°
+1.1°
18 August – 27 August
88.6°
86.5°
+1.1°
28 August – 6 September
at normal
86.8°
—
August records over 66 years
93°14 August 1995All-time high
71.2°23 August 2022All-time low
Sun, 0991° / 77°0.05
91 °
Santa Bárbara, Sunday, 9 August
Light rain. High 91°, low 77°.
Pressure30.03 inHg
Wind16.6 mph E
Humidity63%
Visibility6.2 mi
Dew point73°
Mon, 1089° / 78°0.01
89 °
Santa Bárbara, Monday, 10 August
Light rain. High 89°, low 78°.
Pressure30.06 inHg
Wind14.9 mph E
Humidity58%
Visibility6.2 mi
Dew point71°
Tue, 1188° / 77°0.11
88 °
Santa Bárbara, Tuesday, 11 August
Light rain. High 88°, low 77°.
Pressure30.06 inHg
Wind14.1 mph E
Humidity61%
Visibility6.2 mi
Dew point72°
Wed, 1289° / 78°0.07
89 °
Santa Bárbara, Wednesday, 12 August
Light rain. High 89°, low 78°.
Pressure30.03 inHg
Wind15.2 mph E
Humidity61%
Visibility6.2 mi
Dew point72°
Thu, 1387° / 78°0.05
87 °
Santa Bárbara, Thursday, 13 August
Light rain. High 87°, low 78°.
Pressure30.06 inHg
Wind19.2 mph E
Humidity63%
Visibility—
Dew point71°
Fri, 1487° / 78°0.04
87 °
Santa Bárbara, Friday, 14 August
Light rain. High 87°, low 78°.
Pressure30.12 inHg
Wind18.8 mph E
Humidity62%
Visibility—
Dew point71°
Sat, 1588° / 79°0.03
88 °
Santa Bárbara, Saturday, 15 August
Light rain. High 88°, low 79°.
Pressure30.12 inHg
Wind19.9 mph E
Humidity60%
Visibility—
Dew point70°
Sun, 1688° / 78°0.05
88 °
Santa Bárbara, Sunday, 16 August
Light rain. High 88°, low 78°.
Pressure30.09 inHg
Wind19 mph E
Humidity59%
Visibility—
Dew point70°
Mon, 1788° / 78°0.15
88 °
Santa Bárbara, Monday, 17 August
Light rain. High 88°, low 78°.
Pressure30.03 inHg
Wind15.9 mph E
Humidity69%
Visibility—
Dew point74°
Tue, 1886° / 77°0.43
86 °
Santa Bárbara, Tuesday, 18 August
Light rain. High 86°, low 77°.
Pressure29.97 inHg
Wind11.2 mph NE
Humidity73%
Visibility—
Dew point74°
Wed, 1990° / 77°0.1
90 °
Santa Bárbara, Wednesday, 19 August
Light rain. High 90°, low 77°.
Pressure30.00 inHg
Wind14.6 mph SE
Humidity63%
Visibility—
Dew point72°
Thu, 2089° / 78°0.02
89 °
Santa Bárbara, Thursday, 20 August
Light rain. High 89°, low 78°.
Pressure30.03 inHg
Wind12.5 mph SE
Humidity63%
Visibility—
Dew point72°
Fri, 2189° / 78°0.01
89 °
Santa Bárbara, Friday, 21 August
Light rain. High 89°, low 78°.
Pressure30.06 inHg
Wind13.8 mph SE
Humidity71%
Visibility—
Dew point74°
Sat, 2288° / 77°0.02
88 °
Santa Bárbara, Saturday, 22 August
Light rain. High 88°, low 77°.
Pressure30.03 inHg
Wind15.2 mph E
Humidity67%
Visibility—
Dew point72°
Sun, 2389° / 76°0.02
89 °
Santa Bárbara, Sunday, 23 August
Light rain. High 89°, low 76°.
Pressure30.00 inHg
Wind14.7 mph E
Humidity56%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2486° / 76°0.23
86 °
Santa Bárbara, Monday, 24 August
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.23 in
Chance of precipitation75%
Record high92° (2023)
Record low74° (1963)
Tue, 2587° / 76°0.16
87 °
Santa Bárbara, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.16 in
Chance of precipitation78%
Record high91° (1976)
Record low73° (1972)
Wed, 2687° / 77°0.14
87 °
Santa Bárbara, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.14 in
Chance of precipitation80%
Record high90° (1994)
Record low74° (1972)
Thu, 2787° / 77°0.13
87 °
Santa Bárbara, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.13 in
Chance of precipitation78%
Record high90° (2023)
Record low74° (1961)
Fri, 2887° / 76°0.2
87 °
Santa Bárbara, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.2 in
Chance of precipitation92%
Record high91° (2023)
Record low74° (1983)
Sat, 2987° / 76°0.13
87 °
Santa Bárbara, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.13 in
Chance of precipitation72%
Record high91° (2023)
Record low74° (2018)
Sun, 3087° / 76°0.24
87 °
Santa Bárbara, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.24 in
Chance of precipitation75%
Record high91° (1995)
Record low73° (2018)
Mon, 3187° / 76°0.17
87 °
Santa Bárbara, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.17 in
Chance of precipitation82%
Record high90° (2023)
Record low72° (2021)
Tue, 0187° / 76°0.16
87 °
Santa Bárbara, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.16 in
Chance of precipitation82%
Record high91° (1995)
Record low72° (2021)
Wed, 0287° / 76°0.17
87 °
Santa Bárbara, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.17 in
Chance of precipitation87%
Record high91° (1995)
Record low73° (2021)
Thu, 0387° / 76°0.14
87 °
Santa Bárbara, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.14 in
Chance of precipitation78%
Record high91° (1991)
Record low74° (1972)
Fri, 0487° / 76°0.15
87 °
Santa Bárbara, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.15 in
Chance of precipitation75%
Record high91° (2005)
Record low74° (1982)
Sat, 0587° / 76°0.28
87 °
Santa Bárbara, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.28 in
Chance of precipitation85%
Record high91° (2012)
Record low73° (1961)
Sun, 0687° / 76°0.24
87 °
Santa Bárbara, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.24 in
Chance of precipitation80%
Record high92° (2012)
Record low74° (1961)
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 Santa Bárbara, 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 Santa Bárbara, 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.