As of 16:34 AST

Weather in Guayama, PR

89°

Guayama, Saturday, 8 August, 16:34

Clear. Feels like 101°. High 90°, low 78°.

Pressure29.97 inHg

Wind13 mph SE

Humidity71%

Visibility6.2 mi

Dew point78°

See detailed hourly forecast

Monthly outlook for Guayama, PR: average high 87.6°, average low 78°. That is 1.2° above the climate normal for August. Precipitation is expected on 10 days (about 1.3 inches), against a normal of 10 days and 2.1 inches. The warmest day looks like 9 August (91.8°), the coolest 23 August (76.8°).

87.6°/78°

Average high / low

+1.2°

Above normal

10 / 10

Wet days / normal

1.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	88.2°	85.4°	+1.6°
18 August – 27 August	86.6°	85.3°	+0.7°
28 August – 6 September	at normal	85.5°	—

August records over 66 years

91.2°16 August 2023All-time high

73.4°31 August 2021All-time low

Sun, 0992° / 77°

0.02

92 °

Guayama, Sunday, 9 August

Light rain. High 92°, low 77°.

Pressure30.03 inHg

Wind17.8 mph E

Humidity60%

Visibility6.2 mi

Dew point72°

Mon, 1089° / 79°

0.01

89 °

Guayama, Monday, 10 August

Light rain. High 89°, low 79°.

Pressure30.06 inHg

Wind16.7 mph E

Humidity58%

Visibility6.2 mi

Dew point71°

Tue, 1187° / 77°

0.02

87 °

Guayama, Tuesday, 11 August

Light rain. High 87°, low 77°.

Pressure30.06 inHg

Wind14.3 mph E

Humidity62%

Visibility6.2 mi

Dew point71°

Wed, 1288° / 77°

0.11

88 °

Guayama, Wednesday, 12 August

Light rain. High 88°, low 77°.

Pressure30.03 inHg

Wind14.8 mph E

Humidity63%

Visibility6.2 mi

Dew point72°

Thu, 1386° / 79°

0.05

86 °

Guayama, Thursday, 13 August

Light rain. High 86°, low 79°.

Pressure30.06 inHg

Wind18.5 mph E

Humidity68%

Visibility—

Dew point73°

Fri, 1487° / 79°

0.05

87 °

Guayama, Friday, 14 August

Light rain. High 87°, low 79°.

Pressure30.12 inHg

Wind19.9 mph E

Humidity61%

Visibility—

Dew point70°

Sat, 1587° / 78°

0.04

87 °

Guayama, Saturday, 15 August

Light rain. High 87°, low 78°.

Pressure30.09 inHg

Wind21.3 mph E

Humidity58%

Visibility—

Dew point69°

Sun, 1688° / 78°

0.06

88 °

Guayama, Sunday, 16 August

Light rain. High 88°, low 78°.

Pressure30.06 inHg

Wind20.9 mph E

Humidity64%

Visibility—

Dew point72°

Mon, 1789° / 78°

0.02

89 °

Guayama, Monday, 17 August

Light rain. High 89°, low 78°.

Pressure30.00 inHg

Wind16.8 mph E

Humidity65%

Visibility—

Dew point73°

Tue, 1888° / 77°

0.57

88 °

Guayama, Tuesday, 18 August

Rain. High 88°, low 77°.

Pressure29.94 inHg

Wind6.4 mph NE

Humidity61%

Visibility—

Dew point71°

Wed, 1986° / 78°

0.14

86 °

Guayama, Wednesday, 19 August

Light rain. High 86°, low 78°.

Pressure30.00 inHg

Wind11.2 mph SE

Humidity79%

Visibility—

Dew point76°

Thu, 2086° / 79°

0.05

86 °

Guayama, Thursday, 20 August

Light rain. High 86°, low 79°.

Pressure30.06 inHg

Wind11.9 mph SE

Humidity65%

Visibility—

Dew point72°

Fri, 2186° / 78°

0.02

86 °

Guayama, Friday, 21 August

Light rain. High 86°, low 78°.

Pressure30.06 inHg

Wind13.1 mph SE

Humidity73%

Visibility—

Dew point73°

Sat, 2286° / 78°

0.03

86 °

Guayama, Saturday, 22 August

Light rain. High 86°, low 78°.

Pressure30.03 inHg

Wind12.9 mph E

Humidity69%

Visibility—

Dew point72°

Sun, 2387° / 77°

0.09

87 °

Guayama, Sunday, 23 August

Light rain. High 87°, low 77°.

Pressure30.00 inHg

Wind12.6 mph E

Humidity66%

Visibility—

Dew point72°

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

Mon, 2485° / 77°

0.21

85 °

Guayama, Monday, 24 August

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.21 in

Chance of precipitation67%

Record high89° (2025)

Record low74° (1976)

Tue, 2585° / 77°

0.14

85 °

Guayama, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.14 in

Chance of precipitation65%

Record high89° (1966)

Record low74° (1972)

Wed, 2685° / 77°

0.11

85 °

Guayama, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.11 in

Chance of precipitation65%

Record high89° (1994)

Record low74° (1972)

Thu, 2786° / 77°

0.09

86 °

Guayama, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high86°

Average low77°

Average precipitation0.09 in

Chance of precipitation57%

Record high90° (2019)

Record low75° (1961)

Fri, 2885° / 77°

0.15

85 °

Guayama, Friday, 28 August

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.15 in

Chance of precipitation78%

Record high89° (2021)

Record low74° (2015)

Sat, 2986° / 77°

0.09

86 °

Guayama, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high86°

Average low77°

Average precipitation0.09 in

Chance of precipitation55%

Record high90° (2022)

Record low74° (1971)

Sun, 3085° / 77°

0.21

85 °

Guayama, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.21 in

Chance of precipitation57%

Record high89° (2021)

Record low74° (2018)

Mon, 3185° / 77°

0.15

85 °

Guayama, Monday, 31 August

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.15 in

Chance of precipitation67%

Record high89° (2004)

Record low73° (2021)

Tue, 0185° / 77°

0.09

85 °

Guayama, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.09 in

Chance of precipitation65%

Record high90° (2022)

Record low74° (1986)

Wed, 0285° / 77°

0.12

85 °

Guayama, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.12 in

Chance of precipitation73%

Record high90° (2022)

Record low74° (1981)

Thu, 0386° / 77°

0.11

86 °

Guayama, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high86°

Average low77°

Average precipitation0.11 in

Chance of precipitation60%

Record high91° (2022)

Record low74° (1974)

Fri, 0486° / 77°

0.13

86 °

Guayama, Friday, 4 September

Climate normal for this date — 60-year average.

Average high86°

Average low77°

Average precipitation0.13 in

Chance of precipitation65%

Record high91° (1960)

Record low74° (1981)

Sat, 0585° / 77°

0.26

85 °

Guayama, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.26 in

Chance of precipitation57%

Record high92° (2017)

Record low73° (1961)

Sun, 0685° / 77°

0.13

85 °

Guayama, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high85°

Average low77°

Average precipitation0.13 in

Chance of precipitation62%

Record high91° (2021)

Record low74° (1973)

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 Guayama, 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 Guayama, 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.