Monthly outlook for Bayamoncito, PR: average high 88.5°, average low 71.2°. That is 0.9° above the climate normal for August. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 11 days and 2.0 inches. The warmest day looks like 20 August (91°), the coolest 23 August (69.2°).
88.5°/71.2°
Average high / low
+0.9°
Above normal
2 / 11
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
88.3°
86.9°
+0.8°
18 August – 27 August
88.7°
86.8°
+1°
28 August – 6 September
at normal
86.8°
—
August records over 66 years
92.3°21 August 1994All-time high
70.7°22 August 2022All-time low
Climate normals and records are computed from the nearest reference point — Comerío (4 mi).
Sun, 0987° / 72°0
87 °
Bayamoncito, Sunday, 9 August
Partly cloudy. High 87°, low 72°.
Pressure30.03 inHg
Wind14.9 mph E
Humidity47%
Visibility6.2 mi
Dew point67°
Mon, 1090° / 71°0
90 °
Bayamoncito, Monday, 10 August
Mostly clear. High 90°, low 71°.
Pressure30.06 inHg
Wind14.2 mph E
Humidity44%
Visibility6.2 mi
Dew point66°
Tue, 1189° / 70°0
89 °
Bayamoncito, Tuesday, 11 August
Partly cloudy. High 89°, low 70°.
Pressure30.06 inHg
Wind12.1 mph E
Humidity45%
Visibility6.2 mi
Dew point66°
Wed, 1289° / 73°0.02
89 °
Bayamoncito, Wednesday, 12 August
Light rain. High 89°, low 73°.
Pressure30.03 inHg
Wind12.9 mph SE
Humidity53%
Visibility6.2 mi
Dew point68°
Thu, 1385° / 71°0.03
85 °
Bayamoncito, Thursday, 13 August
Light rain. High 85°, low 71°.
Pressure30.09 inHg
Wind15.5 mph SE
Humidity57%
Visibility—
Dew point66°
Fri, 1488° / 71°0.03
88 °
Bayamoncito, Friday, 14 August
Light rain. High 88°, low 71°.
Pressure30.12 inHg
Wind15.7 mph E
Humidity48%
Visibility—
Dew point62°
Sat, 1589° / 71°0.01
89 °
Bayamoncito, Saturday, 15 August
Light rain. High 89°, low 71°.
Pressure30.09 inHg
Wind17.1 mph E
Humidity47%
Visibility—
Dew point62°
Sun, 1689° / 71°0.04
89 °
Bayamoncito, Sunday, 16 August
Light rain. High 89°, low 71°.
Pressure30.06 inHg
Wind15.7 mph E
Humidity48%
Visibility—
Dew point63°
Mon, 1791° / 70°0.01
91 °
Bayamoncito, Monday, 17 August
Light rain. High 91°, low 70°.
Pressure30.00 inHg
Wind14.2 mph E
Humidity53%
Visibility—
Dew point66°
Tue, 1885° / 72°0.4
85 °
Bayamoncito, Tuesday, 18 August
Rain. High 85°, low 72°.
Pressure29.97 inHg
Wind10.6 mph NE
Humidity60%
Visibility—
Dew point68°
Wed, 1989° / 71°0.02
89 °
Bayamoncito, Wednesday, 19 August
Light rain. High 89°, low 71°.
Pressure30.00 inHg
Wind13.8 mph S
Humidity54%
Visibility—
Dew point66°
Thu, 2091° / 71°0.03
91 °
Bayamoncito, Thursday, 20 August
Light rain. High 91°, low 71°.
Pressure30.06 inHg
Wind11.9 mph SE
Humidity54%
Visibility—
Dew point66°
Fri, 2190° / 71°0
90 °
Bayamoncito, Friday, 21 August
Light rain. High 90°, low 71°.
Pressure30.06 inHg
Wind11.6 mph SE
Humidity63%
Visibility—
Dew point69°
Sat, 2289° / 69°0.01
89 °
Bayamoncito, Saturday, 22 August
Light rain. High 89°, low 69°.
Pressure30.03 inHg
Wind11.8 mph SE
Humidity60%
Visibility—
Dew point68°
Sun, 2389° / 69°0.02
89 °
Bayamoncito, Sunday, 23 August
Light rain. High 89°, low 69°.
Pressure30.00 inHg
Wind12.8 mph SE
Humidity48%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2486° / 75°0.17
86 °
Bayamoncito, Monday, 24 August
Climate normal for this date — 60-year average.
Average high86°
Average low75°
Average precipitation0.17 in
Chance of precipitation73%
Record high91° (1963)
Record low72° (2018)
Tue, 2587° / 75°0.13
87 °
Bayamoncito, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.13 in
Chance of precipitation70%
Record high92° (1966)
Record low73° (1969)
Wed, 2687° / 75°0.13
87 °
Bayamoncito, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.13 in
Chance of precipitation70%
Record high92° (1994)
Record low73° (1965)
Thu, 2787° / 75°0.11
87 °
Bayamoncito, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.11 in
Chance of precipitation65%
Record high91° (1990)
Record low73° (2018)
Fri, 2887° / 75°0.17
87 °
Bayamoncito, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.17 in
Chance of precipitation82%
Record high90° (2023)
Record low72° (2022)
Sat, 2987° / 75°0.11
87 °
Bayamoncito, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.11 in
Chance of precipitation68%
Record high91° (2023)
Record low73° (2018)
Sun, 3087° / 75°0.22
87 °
Bayamoncito, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.22 in
Chance of precipitation72%
Record high92° (1967)
Record low73° (2021)
Mon, 3187° / 75°0.14
87 °
Bayamoncito, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.14 in
Chance of precipitation65%
Record high91° (2004)
Record low72° (2021)
Tue, 0187° / 75°0.13
87 °
Bayamoncito, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.13 in
Chance of precipitation73%
Record high91° (1967)
Record low71° (2022)
Wed, 0287° / 75°0.13
87 °
Bayamoncito, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.13 in
Chance of precipitation80%
Record high91° (1967)
Record low71° (2022)
Thu, 0387° / 75°0.12
87 °
Bayamoncito, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.12 in
Chance of precipitation65%
Record high91° (1967)
Record low73° (2012)
Fri, 0487° / 75°0.12
87 °
Bayamoncito, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.12 in
Chance of precipitation70%
Record high91° (1960)
Record low73° (1982)
Sat, 0587° / 75°0.24
87 °
Bayamoncito, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.24 in
Chance of precipitation70%
Record high92° (1997)
Record low71° (1961)
Sun, 0687° / 75°0.2
87 °
Bayamoncito, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.2 in
Chance of precipitation70%
Record high91° (2012)
Record low73° (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 Bayamoncito, 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 Bayamoncito, 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.