Monthly outlook for Guánica, PR: average high 85.9°, average low 75.7°. That is 0.4° above the climate normal for October. Precipitation is expected on 14 days (about 2.5 inches), against a normal of 9 days and 2.1 inches. The warmest day looks like 19 October (88.6°), the coolest 19 October (71.7°).
85.9°/75.7°
Average high / low
+0.4°
Above normal
14 / 9
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
86.5°
85.2°
+0.7°
27 October – 5 November
84.8°
84.8°
-0°
6 November – 15 November
at normal
84.4°
—
October records over 66 years
93.2°3 October 2023All-time high
71.2°25 October 2008All-time low
Sun, 1888° / 76°0.15
88 °
Guánica, Sunday, 18 October
Rain. High 88°, low 76°.
Pressure29.94 inHg
Wind7.8 mph SE
Humidity68%
Visibility3.8 mi
Dew point75°
Mon, 1989° / 72°0.11
89 °
Guánica, Monday, 19 October
Rain. High 89°, low 72°.
Pressure29.91 inHg
Wind8.1 mph SE
Humidity61%
Visibility6.2 mi
Dew point74°
Tue, 2087° / 73°0.09
87 °
Guánica, Tuesday, 20 October
Light rain. High 87°, low 73°.
Pressure29.91 inHg
Wind8.1 mph SE
Humidity68%
Visibility5.6 mi
Dew point74°
Wed, 2188° / 74°0.07
88 °
Guánica, Wednesday, 21 October
Light rain. High 88°, low 74°.
Pressure29.91 inHg
Wind10.4 mph SE
Humidity59%
Visibility—
Dew point70°
Thu, 2287° / 75°0.31
87 °
Guánica, Thursday, 22 October
Light rain. High 87°, low 75°.
Pressure29.94 inHg
Wind11.1 mph SE
Humidity66%
Visibility—
Dew point73°
Fri, 2385° / 77°0.27
85 °
Guánica, Friday, 23 October
Light rain. High 85°, low 77°.
Pressure29.91 inHg
Wind14.5 mph E
Humidity78%
Visibility—
Dew point75°
Sat, 2484° / 79°0.28
84 °
Guánica, Saturday, 24 October
Light rain. High 84°, low 79°.
Pressure29.91 inHg
Wind15.8 mph SE
Humidity77%
Visibility—
Dew point75°
Sun, 2584° / 78°0.21
84 °
Guánica, Sunday, 25 October
Light rain. High 84°, low 78°.
Pressure29.94 inHg
Wind12.3 mph SE
Humidity73%
Visibility—
Dew point74°
Mon, 2685° / 77°0.13
85 °
Guánica, Monday, 26 October
Light rain. High 85°, low 77°.
Pressure30.00 inHg
Wind12.4 mph SE
Humidity67%
Visibility—
Dew point72°
Tue, 2786° / 76°0.15
86 °
Guánica, Tuesday, 27 October
Light rain. High 86°, low 76°.
Pressure30.00 inHg
Wind6.1 mph SE
Humidity59%
Visibility—
Dew point69°
Wed, 2886° / 76°0.07
86 °
Guánica, Wednesday, 28 October
Light rain. High 86°, low 76°.
Pressure29.97 inHg
Wind7.9 mph S
Humidity55%
Visibility—
Dew point66°
Thu, 2985° / 75°0
85 °
Guánica, Thursday, 29 October
Clear. High 85°, low 75°.
Pressure29.94 inHg
Wind12.2 mph SW
Humidity58%
Visibility—
Dew point67°
Fri, 3084° / 75°0
84 °
Guánica, Friday, 30 October
Clear. High 84°, low 75°.
Pressure29.88 inHg
Wind8.3 mph S
Humidity64%
Visibility—
Dew point68°
Sat, 3184° / 76°0.15
84 °
Guánica, Saturday, 31 October
Rain. High 84°, low 76°.
Pressure29.88 inHg
Wind9.1 mph S
Humidity67%
Visibility—
Dew point71°
Sun, 0184° / 75°0.29
84 °
Guánica, Sunday, 1 November
Rain. High 84°, low 75°.
Pressure29.88 inHg
Wind4.2 mph NE
Humidity60%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0285° / 76°0.12
85 °
Guánica, Monday, 2 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation47%
Record high89° (1982)
Record low70° (1961)
Tue, 0385° / 76°0.13
85 °
Guánica, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation50%
Record high89° (2009)
Record low72° (1974)
Wed, 0485° / 76°0.12
85 °
Guánica, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation47%
Record high88° (1982)
Record low70° (2000)
Thu, 0584° / 76°0.13
84 °
Guánica, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.13 in
Chance of precipitation48%
Record high89° (1960)
Record low70° (2025)
Fri, 0685° / 76°0.12
85 °
Guánica, Friday, 6 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high88° (1960)
Record low73° (2000)
Sat, 0785° / 76°0.17
85 °
Guánica, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.17 in
Chance of precipitation55%
Record high89° (1993)
Record low73° (1961)
Sun, 0885° / 76°0.11
85 °
Guánica, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation63%
Record high89° (1980)
Record low73° (2014)
Mon, 0984° / 76°0.16
84 °
Guánica, Monday, 9 November
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.16 in
Chance of precipitation63%
Record high89° (1980)
Record low72° (2000)
Tue, 1084° / 76°0.13
84 °
Guánica, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.13 in
Chance of precipitation48%
Record high89° (1980)
Record low71° (2000)
Wed, 1184° / 76°0.13
84 °
Guánica, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.13 in
Chance of precipitation45%
Record high89° (1980)
Record low69° (1984)
Thu, 1284° / 75°0.11
84 °
Guánica, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.11 in
Chance of precipitation43%
Record high89° (1993)
Record low70° (1984)
Fri, 1384° / 75°0.09
84 °
Guánica, Friday, 13 November
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.09 in
Chance of precipitation53%
Record high88° (2025)
Record low70° (1984)
Sat, 1484° / 75°0.05
84 °
Guánica, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.05 in
Chance of precipitation32%
Record high88° (1980)
Record low71° (1966)
Sun, 1584° / 76°0.07
84 °
Guánica, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.07 in
Chance of precipitation42%
Record high89° (2015)
Record low71° (1979)
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.