As of 17:42 AST

Weather in Guánica, PR

86°

Guánica, Saturday, 8 August, 17:42

Light rain. Feels like 99°. High 89°, low 76°.

Pressure29.94 inHg

Wind14.3 mph SE

Humidity78%

Visibility6.2 mi

Dew point79°

See detailed hourly forecast

Monthly outlook for Guánica, PR: average high 87.9°, average low 77.1°. That is 0.2° above the climate normal for August. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 9 days and 1.8 inches. The warmest day looks like 9 August (90.8°), the coolest 15 August (74.8°).

87.9°/77.1°

Average high / low

+0.2°

Above normal

4 / 9

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	88.7°	87.6°	+0.6°
18 August – 27 August	86.7°	87.3°	-0.3°
28 August – 6 September	at normal	87.1°	—

August records over 66 years

92.7°3 August 2013All-time high

69.6°22 August 2025All-time low

Climate normals and records are computed from the nearest reference point — Yauco (6 mi).

Sun, 0991° / 76°

91 °

Guánica, Sunday, 9 August

Clear. High 91°, low 76°.

Pressure30.00 inHg

Wind22 mph SE

Humidity58%

Visibility6.2 mi

Dew point72°

Mon, 1088° / 78°

88 °

Guánica, Monday, 10 August

Clear. High 88°, low 78°.

Pressure30.03 inHg

Wind22.9 mph SE

Humidity61%

Visibility6.2 mi

Dew point72°

Tue, 1187° / 77°

0.21

87 °

Guánica, Tuesday, 11 August

Rain. High 87°, low 77°.

Pressure30.03 inHg

Wind21.9 mph SE

Humidity64%

Visibility6.2 mi

Dew point73°

Wed, 1287° / 77°

0.01

87 °

Guánica, Wednesday, 12 August

Light rain. High 87°, low 77°.

Pressure30.00 inHg

Wind19.5 mph SE

Humidity66%

Visibility6.2 mi

Dew point74°

Thu, 1386° / 78°

86 °

Guánica, Thursday, 13 August

Overcast. High 86°, low 78°.

Pressure30.06 inHg

Wind23.3 mph E

Humidity67%

Visibility—

Dew point73°

Fri, 1488° / 77°

88 °

Guánica, Friday, 14 August

Overcast. High 88°, low 77°.

Pressure30.09 inHg

Wind25.5 mph SE

Humidity53%

Visibility—

Dew point67°

Sat, 1590° / 75°

90 °

Guánica, Saturday, 15 August

Clear. High 90°, low 75°.

Pressure30.06 inHg

Wind27 mph SE

Humidity50%

Visibility—

Dew point67°

Sun, 1689° / 76°

0.01

89 °

Guánica, Sunday, 16 August

Light rain. High 89°, low 76°.

Pressure30.03 inHg

Wind23.9 mph SE

Humidity54%

Visibility—

Dew point69°

Mon, 1790° / 77°

0.23

90 °

Guánica, Monday, 17 August

Rain. High 90°, low 77°.

Pressure30.00 inHg

Wind20.8 mph SE

Humidity53%

Visibility—

Dew point69°

Tue, 1887° / 77°

0.12

87 °

Guánica, Tuesday, 18 August

Light rain. High 87°, low 77°.

Pressure29.94 inHg

Wind10 mph S

Humidity60%

Visibility—

Dew point70°

Wed, 1987° / 78°

0.04

87 °

Guánica, Wednesday, 19 August

Light rain. High 87°, low 78°.

Pressure30.00 inHg

Wind15.6 mph SE

Humidity67%

Visibility—

Dew point73°

Thu, 2087° / 79°

0.02

87 °

Guánica, Thursday, 20 August

Light rain. High 87°, low 79°.

Pressure30.03 inHg

Wind18.2 mph SE

Humidity73%

Visibility—

Dew point74°

Fri, 2187° / 78°

87 °

Guánica, Friday, 21 August

Overcast. High 87°, low 78°.

Pressure30.03 inHg

Wind19.6 mph SE

Humidity66%

Visibility—

Dew point72°

Sat, 2286° / 79°

86 °

Guánica, Saturday, 22 August

Mostly clear. High 86°, low 79°.

Pressure30.00 inHg

Wind19 mph SE

Humidity62%

Visibility—

Dew point71°

Sun, 2387° / 75°

0.02

87 °

Guánica, Sunday, 23 August

Light rain. High 87°, low 75°.

Pressure30.00 inHg

Wind19.9 mph SE

Humidity69%

Visibility—

Dew point72°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2487° / 77°

0.17

87 °

Guánica, Monday, 24 August

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.17 in

Chance of precipitation63%

Record high91° (1987)

Record low71° (2018)

Tue, 2587° / 77°

0.11

87 °

Guánica, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.11 in

Chance of precipitation57%

Record high91° (2025)

Record low71° (2024)

Wed, 2687° / 77°

0.11

87 °

Guánica, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.11 in

Chance of precipitation63%

Record high92° (1990)

Record low72° (2023)

Thu, 2787° / 77°

0.09

87 °

Guánica, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.09 in

Chance of precipitation63%

Record high92° (1990)

Record low72° (2020)

Fri, 2887° / 77°

0.14

87 °

Guánica, Friday, 28 August

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.14 in

Chance of precipitation68%

Record high92° (1992)

Record low73° (2019)

Sat, 2987° / 77°

0.08

87 °

Guánica, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.08 in

Chance of precipitation67%

Record high90° (1992)

Record low73° (2021)

Sun, 3087° / 77°

0.17

87 °

Guánica, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.17 in

Chance of precipitation58%

Record high92° (1994)

Record low71° (2025)

Mon, 3187° / 77°

0.14

87 °

Guánica, Monday, 31 August

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.14 in

Chance of precipitation53%

Record high91° (1960)

Record low74° (2017)

Tue, 0187° / 77°

0.11

87 °

Guánica, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.11 in

Chance of precipitation68%

Record high91° (2009)

Record low72° (2022)

Wed, 0287° / 77°

0.13

87 °

Guánica, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.13 in

Chance of precipitation73%

Record high92° (2009)

Record low72° (2022)

Thu, 0387° / 77°

0.11

87 °

Guánica, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.11 in

Chance of precipitation53%

Record high92° (1995)

Record low72° (2022)

Fri, 0487° / 77°

0.11

87 °

Guánica, Friday, 4 September

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.11 in

Chance of precipitation55%

Record high91° (1960)

Record low74° (1964)

Sat, 0587° / 77°

0.24

87 °

Guánica, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.24 in

Chance of precipitation68%

Record high91° (1995)

Record low71° (1961)

Sun, 0687° / 77°

0.12

87 °

Guánica, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high87°

Average low77°

Average precipitation0.12 in

Chance of precipitation58%

Record high91° (2021)

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 Guánica, 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 Guánica, 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.