Monthly outlook for Mayagüez Terrace, PR: average high 88.4°, average low 78.1°. That is 0.2° above the climate normal for August. Precipitation is expected on 9 days (about 2.1 inches), against a normal of 11 days and 2.2 inches. The warmest day looks like 10 August (93.3°), the coolest 10 August (76.7°).
88.4°/78.1°
Average high / low
+0.2°
Above normal
9 / 11
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
89.6°
88.1°
+0.9°
19 August – 28 August
86.3°
87.8°
-0.9°
29 August – 7 September
at normal
87.5°
—
August records over 66 years
93.2°14 August 2023All-time high
70.2°2 August 2018All-time low
Climate normals and records are computed from the nearest reference point — Añasco (5 mi).
Mon, 1093° / 77°0
93 °
Mayagüez Terrace, Monday, 10 August
Overcast. High 93°, low 77°.
Pressure30.03 inHg
Wind9.4 mph SW
Humidity59%
Visibility6.2 mi
Dew point71°
Tue, 1187° / 78°0.24
87 °
Mayagüez Terrace, Tuesday, 11 August
Rain. High 87°, low 78°.
Pressure30.03 inHg
Wind13.8 mph SW
Humidity63%
Visibility6.2 mi
Dew point72°
Wed, 1287° / 78°0.16
87 °
Mayagüez Terrace, Wednesday, 12 August
Light rain. High 87°, low 78°.
Pressure30.00 inHg
Wind8.9 mph S
Humidity61%
Visibility6.2 mi
Dew point72°
Thu, 1389° / 78°0
89 °
Mayagüez Terrace, Thursday, 13 August
Overcast. High 89°, low 78°.
Pressure30.03 inHg
Wind12.2 mph SE
Humidity59%
Visibility—
Dew point69°
Fri, 1492° / 77°0
92 °
Mayagüez Terrace, Friday, 14 August
Clear. High 92°, low 77°.
Pressure30.09 inHg
Wind14.5 mph NE
Humidity53%
Visibility—
Dew point68°
Sat, 1592° / 79°0.01
92 °
Mayagüez Terrace, Saturday, 15 August
Light rain. High 92°, low 79°.
Pressure30.03 inHg
Wind15 mph NE
Humidity54%
Visibility—
Dew point69°
Sun, 1690° / 78°0
90 °
Mayagüez Terrace, Sunday, 16 August
Mostly clear. High 90°, low 78°.
Pressure30.00 inHg
Wind14.4 mph E
Humidity56%
Visibility—
Dew point70°
Mon, 1788° / 78°0.02
88 °
Mayagüez Terrace, Monday, 17 August
Light rain. High 88°, low 78°.
Pressure29.97 inHg
Wind12.7 mph NE
Humidity61%
Visibility—
Dew point72°
Tue, 1889° / 79°0.07
89 °
Mayagüez Terrace, Tuesday, 18 August
Light rain. High 89°, low 79°.
Pressure29.97 inHg
Wind10.4 mph NE
Humidity63%
Visibility—
Dew point73°
Wed, 1989° / 80°0.33
89 °
Mayagüez Terrace, Wednesday, 19 August
Rain. High 89°, low 80°.
Pressure30.03 inHg
Wind15.3 mph S
Humidity61%
Visibility—
Dew point73°
Thu, 2085° / 80°0.6
85 °
Mayagüez Terrace, Thursday, 20 August
Rain. High 85°, low 80°.
Pressure30.00 inHg
Wind8.2 mph NW
Humidity70%
Visibility—
Dew point73°
Fri, 2184° / 78°0.44
84 °
Mayagüez Terrace, Friday, 21 August
Rain. High 84°, low 78°.
Pressure30.00 inHg
Wind5.8 mph NE
Humidity68%
Visibility—
Dew point71°
Sat, 2286° / 77°0.01
86 °
Mayagüez Terrace, Saturday, 22 August
Light rain. High 86°, low 77°.
Pressure30.00 inHg
Wind10.4 mph SE
Humidity66%
Visibility—
Dew point71°
Sun, 2386° / 78°0.11
86 °
Mayagüez Terrace, Sunday, 23 August
Light rain. High 86°, low 78°.
Pressure30.00 inHg
Wind6.8 mph SE
Humidity64%
Visibility—
Dew point71°
Mon, 2487° / 78°0.04
87 °
Mayagüez Terrace, Monday, 24 August
Light rain. High 87°, low 78°.
Pressure30.06 inHg
Wind13.5 mph NW
Humidity59%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2588° / 78°0.13
88 °
Mayagüez Terrace, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.13 in
Chance of precipitation68%
Record high91° (1968)
Record low71° (2018)
Wed, 2688° / 78°0.16
88 °
Mayagüez Terrace, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.16 in
Chance of precipitation63%
Record high91° (2025)
Record low73° (2018)
Thu, 2788° / 78°0.13
88 °
Mayagüez Terrace, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.13 in
Chance of precipitation77%
Record high91° (2024)
Record low74° (2021)
Fri, 2888° / 78°0.15
88 °
Mayagüez Terrace, Friday, 28 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.15 in
Chance of precipitation80%
Record high92° (2023)
Record low74° (2022)
Sat, 2988° / 78°0.11
88 °
Mayagüez Terrace, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.11 in
Chance of precipitation67%
Record high92° (2024)
Record low74° (2022)
Sun, 3088° / 78°0.19
88 °
Mayagüez Terrace, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.19 in
Chance of precipitation75%
Record high91° (1994)
Record low74° (2022)
Mon, 3188° / 78°0.15
88 °
Mayagüez Terrace, Monday, 31 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.15 in
Chance of precipitation75%
Record high92° (2023)
Record low73° (2021)
Tue, 0188° / 78°0.15
88 °
Mayagüez Terrace, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.15 in
Chance of precipitation67%
Record high91° (2023)
Record low74° (2018)
Wed, 0287° / 78°0.15
87 °
Mayagüez Terrace, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.15 in
Chance of precipitation80%
Record high91° (2025)
Record low73° (2021)
Thu, 0388° / 78°0.12
88 °
Mayagüez Terrace, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.12 in
Chance of precipitation72%
Record high92° (2024)
Record low74° (2019)
Fri, 0488° / 78°0.13
88 °
Mayagüez Terrace, Friday, 4 September
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.13 in
Chance of precipitation72%
Record high91° (2021)
Record low72° (2018)
Sat, 0587° / 78°0.23
87 °
Mayagüez Terrace, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.23 in
Chance of precipitation68%
Record high93° (2023)
Record low72° (2018)
Sun, 0687° / 78°0.15
87 °
Mayagüez Terrace, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.15 in
Chance of precipitation70%
Record high91° (2023)
Record low72° (2023)
Mon, 0787° / 78°0.15
87 °
Mayagüez Terrace, Monday, 7 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.15 in
Chance of precipitation65%
Record high91° (2023)
Record low73° (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 Mayagüez Terrace, 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 Mayagüez Terrace, 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.