Monthly outlook for Arenales, PR: average high 84.4°, average low 77.2°. That is 0.5° above the climate normal for October. Precipitation is expected on 14 days (about 3.5 inches), against a normal of 12 days and 2.6 inches. The warmest day looks like 12 October (91°), the coolest 13 October (72.3°).
84.4°/77.2°
Average high / low
+0.5°
Above normal
14 / 12
Wet days / normal
3.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
84.8°
83.6°
+0.7°
22 October – 31 October
83.6°
83°
+0.3°
1 November – 10 November
at normal
82.3°
—
October records over 66 years
91.9°7 October 2023All-time high
70°25 October 2018All-time low
Climate normals and records are computed from the nearest reference point — Cabán (3 mi).
Tue, 1388° / 72°0.63
88 °
Arenales, Tuesday, 13 October
Heavy rain. High 88°, low 72°.
Pressure29.91 inHg
Wind12.4 mph E
Humidity81%
Visibility6.2 mi
Dew point76°
Wed, 1484° / 79°0.23
84 °
Arenales, Wednesday, 14 October
Rain. High 84°, low 79°.
Pressure29.94 inHg
Wind14.6 mph NE
Humidity82%
Visibility6.2 mi
Dew point77°
Thu, 1585° / 79°0.15
85 °
Arenales, Thursday, 15 October
Light rain. High 85°, low 79°.
Pressure29.94 inHg
Wind14 mph NE
Humidity79%
Visibility6.2 mi
Dew point77°
Fri, 1684° / 81°0.06
84 °
Arenales, Friday, 16 October
Light rain. High 84°, low 81°.
Pressure29.94 inHg
Wind12.1 mph E
Humidity81%
Visibility—
Dew point76°
Sat, 1783° / 80°0.28
83 °
Arenales, Saturday, 17 October
Rain. High 83°, low 80°.
Pressure29.94 inHg
Wind10.1 mph NE
Humidity79%
Visibility—
Dew point76°
Sun, 1884° / 78°0.36
84 °
Arenales, Sunday, 18 October
Rain. High 84°, low 78°.
Pressure29.97 inHg
Wind14.8 mph E
Humidity68%
Visibility—
Dew point72°
Mon, 1984° / 78°0.33
84 °
Arenales, Monday, 19 October
Rain. High 84°, low 78°.
Pressure29.97 inHg
Wind15.6 mph E
Humidity70%
Visibility—
Dew point73°
Tue, 2083° / 77°0.42
83 °
Arenales, Tuesday, 20 October
Rain. High 83°, low 77°.
Pressure29.88 inHg
Wind10.3 mph E
Humidity71%
Visibility—
Dew point72°
Wed, 2182° / 77°0.25
82 °
Arenales, Wednesday, 21 October
Light rain. High 82°, low 77°.
Pressure29.88 inHg
Wind10.3 mph SW
Humidity72%
Visibility—
Dew point71°
Thu, 2282° / 75°0.23
82 °
Arenales, Thursday, 22 October
Rain. High 82°, low 75°.
Pressure29.88 inHg
Wind12.8 mph SW
Humidity72%
Visibility—
Dew point71°
Fri, 2381° / 75°0.15
81 °
Arenales, Friday, 23 October
Light rain. High 81°, low 75°.
Pressure29.91 inHg
Wind6.4 mph W
Humidity69%
Visibility—
Dew point68°
Sat, 2484° / 77°0.09
84 °
Arenales, Saturday, 24 October
Light rain. High 84°, low 77°.
Pressure29.88 inHg
Wind18 mph SW
Humidity70%
Visibility—
Dew point72°
Sun, 2585° / 77°0.19
85 °
Arenales, Sunday, 25 October
Light rain. High 85°, low 77°.
Pressure29.94 inHg
Wind15.2 mph SW
Humidity69%
Visibility—
Dew point72°
Mon, 2684° / 78°0
84 °
Arenales, Monday, 26 October
Clear. High 84°, low 78°.
Pressure30.00 inHg
Wind10.8 mph E
Humidity66%
Visibility—
Dew point70°
Tue, 2784° / 77°0.02
84 °
Arenales, Tuesday, 27 October
Light rain. High 84°, low 77°.
Pressure29.97 inHg
Wind9 mph E
Humidity68%
Visibility—
Dew point72°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2883° / 75°0.18
83 °
Arenales, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high83°
Average low75°
Average precipitation0.18 in
Chance of precipitation65%
Record high89° (2025)
Record low70° (1982)
Thu, 2983° / 75°0.19
83 °
Arenales, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high83°
Average low75°
Average precipitation0.19 in
Chance of precipitation73%
Record high89° (2025)
Record low70° (2021)
Fri, 3083° / 75°0.18
83 °
Arenales, Friday, 30 October
Climate normal for this date — 60-year average.
Average high83°
Average low75°
Average precipitation0.18 in
Chance of precipitation73%
Record high89° (2021)
Record low71° (2021)
Sat, 3183° / 74°0.15
83 °
Arenales, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.15 in
Chance of precipitation65%
Record high88° (2023)
Record low71° (2021)
Sun, 0182° / 74°0.13
82 °
Arenales, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.13 in
Chance of precipitation60%
Record high87° (2014)
Record low71° (1976)
Mon, 0283° / 74°0.14
83 °
Arenales, Monday, 2 November
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.14 in
Chance of precipitation52%
Record high89° (2025)
Record low70° (1974)
Tue, 0382° / 74°0.13
82 °
Arenales, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.13 in
Chance of precipitation62%
Record high87° (2024)
Record low70° (1974)
Wed, 0482° / 74°0.13
82 °
Arenales, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.13 in
Chance of precipitation60%
Record high86° (2021)
Record low71° (2022)
Thu, 0582° / 74°0.15
82 °
Arenales, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.15 in
Chance of precipitation67%
Record high87° (2021)
Record low71° (2022)
Fri, 0682° / 74°0.15
82 °
Arenales, Friday, 6 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.15 in
Chance of precipitation65%
Record high87° (2021)
Record low71° (2022)
Sat, 0782° / 74°0.19
82 °
Arenales, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.19 in
Chance of precipitation63%
Record high87° (2021)
Record low71° (2020)
Sun, 0882° / 74°0.14
82 °
Arenales, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.14 in
Chance of precipitation67%
Record high87° (2021)
Record low70° (2021)
Mon, 0982° / 74°0.17
82 °
Arenales, Monday, 9 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.17 in
Chance of precipitation68%
Record high86° (1962)
Record low72° (1966)
Tue, 1082° / 74°0.14
82 °
Arenales, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high82°
Average low74°
Average precipitation0.14 in
Chance of precipitation65%
Record high86° (2025)
Record low71° (1974)
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 Arenales, 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 Arenales, 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.