Monthly outlook for Santa María, PR: average high 83.2°, average low 75.9°. That is 0.6° below the climate normal for August. Precipitation is expected on 10 days (about 1.6 inches), against a normal of 13 days and 2.8 inches. The warmest day looks like 10 August (89.3°), the coolest 20 August (73.3°).
83.2°/75.9°
Average high / low
−0.6°
Below normal
10 / 13
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.4°
84.2°
-0.4°
19 August – 28 August
82.9°
84.3°
-0.8°
29 August – 7 September
at normal
84.6°
—
August records over 66 years
88.9°31 August 2004All-time high
70.9°31 August 2021All-time low
Climate normals and records are computed from the nearest reference point — Duque (6 mi).
Mon, 1089° / 78°0
89 °
Santa María, Monday, 10 August
Light rain. High 89°, low 78°.
Pressure30.09 inHg
Wind14.2 mph E
Humidity68%
Visibility6.2 mi
Dew point72°
Tue, 1182° / 75°0.26
82 °
Santa María, Tuesday, 11 August
Light rain. High 82°, low 75°.
Pressure30.06 inHg
Wind13.9 mph E
Humidity74%
Visibility5.6 mi
Dew point73°
Wed, 1282° / 76°0.38
82 °
Santa María, Wednesday, 12 August
Rain. High 82°, low 76°.
Pressure30.03 inHg
Wind14 mph E
Humidity75%
Visibility6.2 mi
Dew point74°
Thu, 1382° / 77°0.06
82 °
Santa María, Thursday, 13 August
Light rain. High 82°, low 77°.
Pressure30.09 inHg
Wind18.6 mph E
Humidity72%
Visibility—
Dew point71°
Fri, 1482° / 77°0.09
82 °
Santa María, Friday, 14 August
Light rain. High 82°, low 77°.
Pressure30.15 inHg
Wind17.7 mph E
Humidity72%
Visibility—
Dew point71°
Sat, 1582° / 77°0.06
82 °
Santa María, Saturday, 15 August
Light rain. High 82°, low 77°.
Pressure30.09 inHg
Wind18.9 mph E
Humidity71%
Visibility—
Dew point71°
Sun, 1682° / 76°0.06
82 °
Santa María, Sunday, 16 August
Light rain. High 82°, low 76°.
Pressure30.03 inHg
Wind14.2 mph E
Humidity73%
Visibility—
Dew point71°
Mon, 1782° / 74°0.01
82 °
Santa María, Monday, 17 August
Light rain. High 82°, low 74°.
Pressure30.00 inHg
Wind10.6 mph E
Humidity64%
Visibility—
Dew point67°
Tue, 1883° / 75°0.02
83 °
Santa María, Tuesday, 18 August
Light rain. High 83°, low 75°.
Pressure30.03 inHg
Wind7.5 mph SE
Humidity70%
Visibility—
Dew point71°
Wed, 1983° / 75°0
83 °
Santa María, Wednesday, 19 August
Clear. High 83°, low 75°.
Pressure30.06 inHg
Wind7.2 mph SE
Humidity67%
Visibility—
Dew point70°
Thu, 2083° / 73°0
83 °
Santa María, Thursday, 20 August
Clear. High 83°, low 73°.
Pressure30.03 inHg
Wind7.7 mph E
Humidity65%
Visibility—
Dew point68°
Fri, 2183° / 74°0.11
83 °
Santa María, Friday, 21 August
Light rain. High 83°, low 74°.
Pressure29.97 inHg
Wind7.3 mph SE
Humidity77%
Visibility—
Dew point72°
Sat, 2283° / 77°0.01
83 °
Santa María, Saturday, 22 August
Light rain. High 83°, low 77°.
Pressure29.97 inHg
Wind11.1 mph E
Humidity66%
Visibility—
Dew point70°
Sun, 2383° / 76°0.19
83 °
Santa María, Sunday, 23 August
Light rain. High 83°, low 76°.
Pressure30.00 inHg
Wind13.7 mph E
Humidity76%
Visibility—
Dew point73°
Mon, 2483° / 77°0.26
83 °
Santa María, Monday, 24 August
Light rain. High 83°, low 77°.
Pressure30.03 inHg
Wind13.2 mph E
Humidity72%
Visibility—
Dew point72°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 76°0.16
84 °
Santa María, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.16 in
Chance of precipitation80%
Record high87° (2025)
Record low73° (1969)
Wed, 2684° / 77°0.15
84 °
Santa María, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.15 in
Chance of precipitation82%
Record high87° (2015)
Record low73° (2018)
Thu, 2785° / 76°0.13
85 °
Santa María, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation82%
Record high87° (2010)
Record low74° (2022)
Fri, 2884° / 76°0.23
84 °
Santa María, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.23 in
Chance of precipitation95%
Record high88° (2010)
Record low72° (2022)
Sat, 2985° / 76°0.14
85 °
Santa María, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.14 in
Chance of precipitation77%
Record high88° (2010)
Record low73° (2018)
Sun, 3085° / 76°0.26
85 °
Santa María, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.26 in
Chance of precipitation78%
Record high88° (2023)
Record low73° (2021)
Mon, 3185° / 76°0.17
85 °
Santa María, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.17 in
Chance of precipitation85%
Record high89° (2004)
Record low71° (2021)
Tue, 0185° / 76°0.16
85 °
Santa María, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.16 in
Chance of precipitation78%
Record high88° (2005)
Record low73° (1986)
Wed, 0284° / 76°0.18
84 °
Santa María, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.18 in
Chance of precipitation92%
Record high87° (2010)
Record low72° (1986)
Thu, 0385° / 76°0.15
85 °
Santa María, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation78%
Record high88° (2003)
Record low74° (2023)
Fri, 0485° / 76°0.17
85 °
Santa María, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.17 in
Chance of precipitation78%
Record high89° (1960)
Record low74° (1982)
Sat, 0585° / 76°0.3
85 °
Santa María, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.3 in
Chance of precipitation85%
Record high88° (2012)
Record low74° (1961)
Sun, 0685° / 76°0.22
85 °
Santa María, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.22 in
Chance of precipitation80%
Record high89° (2012)
Record low73° (2022)
Mon, 0785° / 76°0.17
85 °
Santa María, Monday, 7 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.17 in
Chance of precipitation83%
Record high89° (2012)
Record low73° (2022)
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 María, 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 María, 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.