As of 17:56 AST

Weather in Arenal, PR

85°Current weather

Arenal, Monday, 12 October, 17:56

Clear. Feels like 96°. High 88°, low 76°.

Pressure29.88 inHg
Wind1 mph W
Humidity78%
Visibility6.2 mi
Dew point78°

Monthly outlook for Arenal, PR: average high 86.6°, average low 76.9°. That is 1.1° above the climate normal for October. Precipitation is expected on 11 days (about 2.1 inches), against a normal of 11 days and 2.5 inches. The warmest day looks like 15 October (90.1°), the coolest 18 October (73.6°).

86.6°/76.9°
Average high / low
+1.1°
Above normal
11 / 11
Wet days / normal
2.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October87.9°84.7°+1.8°
22 October – 31 October84.5°84.3°+0.1°
1 November – 10 Novemberat normal83.7°—

October records over 66 years

94.6°2 October 2023All-time high
71.8°30 October 2018All-time low

Climate normals and records are computed from the nearest reference point — Salinas (1 mi).

Tue, 1388° / 74°0.17Rain
88 °Rain

Arenal, Tuesday, 13 October

Rain. High 88°, low 74°.

Pressure29.91 inHg
Wind12.2 mph SE
Humidity61%
Visibility6.2 mi
Dew point74°
Wed, 1489° / 74°0.08Light rain
89 °Light rain

Arenal, Wednesday, 14 October

Light rain. High 89°, low 74°.

Pressure29.94 inHg
Wind9.2 mph SE
Humidity59%
Visibility6.0 mi
Dew point73°
Thu, 1590° / 76°0.11Light rain
90 °Light rain

Arenal, Thursday, 15 October

Light rain. High 90°, low 76°.

Pressure29.94 inHg
Wind9.7 mph SE
Humidity56%
Visibility4.9 mi
Dew point73°
Fri, 1689° / 75°0.06Light rain
89 °Light rain

Arenal, Friday, 16 October

Light rain. High 89°, low 75°.

Pressure29.91 inHg
Wind10.6 mph SE
Humidity61%
Visibility6.2 mi
Dew point74°
Sat, 1789° / 74°0.1Light rain
89 °Light rain

Arenal, Saturday, 17 October

Light rain. High 89°, low 74°.

Pressure29.94 inHg
Wind8 mph SE
Humidity60%
Visibility—
Dew point72°
Sun, 1886° / 74°0Clear
86 °Clear

Arenal, Sunday, 18 October

Clear. High 86°, low 74°.

Pressure29.97 inHg
Wind13.2 mph SE
Humidity63%
Visibility—
Dew point70°
Mon, 1987° / 79°0Light rain
87 °Light rain

Arenal, Monday, 19 October

Light rain. High 87°, low 79°.

Pressure29.97 inHg
Wind16 mph SE
Humidity66%
Visibility—
Dew point73°
Tue, 2087° / 78°0.08Light rain
87 °Light rain

Arenal, Tuesday, 20 October

Light rain. High 87°, low 78°.

Pressure29.94 inHg
Wind17 mph SE
Humidity62%
Visibility—
Dew point71°
Wed, 2186° / 78°0.04Light rain
86 °Light rain

Arenal, Wednesday, 21 October

Light rain. High 86°, low 78°.

Pressure29.91 inHg
Wind12.3 mph SE
Humidity67%
Visibility—
Dew point72°
Thu, 2284° / 78°0.02Light rain
84 °Light rain

Arenal, Thursday, 22 October

Light rain. High 84°, low 78°.

Pressure29.91 inHg
Wind7.6 mph S
Humidity70%
Visibility—
Dew point73°
Fri, 2385° / 80°0.11Light rain
85 °Light rain

Arenal, Friday, 23 October

Light rain. High 85°, low 80°.

Pressure29.94 inHg
Wind11.7 mph SE
Humidity71%
Visibility—
Dew point74°
Sat, 2484° / 79°0.4Rain
84 °Rain

Arenal, Saturday, 24 October

Rain. High 84°, low 79°.

Pressure29.94 inHg
Wind20.6 mph E
Humidity76%
Visibility—
Dew point75°
Sun, 2584° / 79°0.52Light rain
84 °Light rain

Arenal, Sunday, 25 October

Light rain. High 84°, low 79°.

Pressure30.00 inHg
Wind17.1 mph SE
Humidity74%
Visibility—
Dew point74°
Mon, 2683° / 78°0.3Light rain
83 °Light rain

Arenal, Monday, 26 October

Light rain. High 83°, low 78°.

Pressure30.03 inHg
Wind10.9 mph E
Humidity77%
Visibility—
Dew point74°
Tue, 2786° / 80°0.04Light rain
86 °Light rain

Arenal, Tuesday, 27 October

Light rain. High 86°, low 80°.

Pressure29.97 inHg
Wind11.7 mph SE
Humidity66%
Visibility—
Dew point72°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2884° / 77°0.17Climate normal
84 °Climate normal

Arenal, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high84°
Average low77°
Average precipitation0.17 in
Chance of precipitation63%
Record high92° (2024)
Record low73° (1970)
Thu, 2984° / 76°0.15Climate normal
84 °Climate normal

Arenal, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.15 in
Chance of precipitation73%
Record high88° (2019)
Record low73° (2018)
Fri, 3084° / 76°0.16Climate normal
84 °Climate normal

Arenal, Friday, 30 October

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.16 in
Chance of precipitation68%
Record high89° (2019)
Record low72° (2018)
Sat, 3184° / 76°0.13Climate normal
84 °Climate normal

Arenal, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.13 in
Chance of precipitation72%
Record high89° (2019)
Record low74° (1961)
Sun, 0184° / 76°0.16Climate normal
84 °Climate normal

Arenal, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.16 in
Chance of precipitation62%
Record high89° (2020)
Record low71° (1976)
Mon, 0284° / 76°0.15Climate normal
84 °Climate normal

Arenal, Monday, 2 November

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.15 in
Chance of precipitation67%
Record high90° (2021)
Record low73° (1976)
Tue, 0384° / 76°0.14Climate normal
84 °Climate normal

Arenal, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.14 in
Chance of precipitation65%
Record high87° (2018)
Record low72° (1974)
Wed, 0484° / 76°0.15Climate normal
84 °Climate normal

Arenal, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.15 in
Chance of precipitation62%
Record high90° (2021)
Record low72° (2000)
Thu, 0584° / 76°0.17Climate normal
84 °Climate normal

Arenal, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.17 in
Chance of precipitation70%
Record high88° (2021)
Record low73° (2025)
Fri, 0684° / 76°0.18Climate normal
84 °Climate normal

Arenal, Friday, 6 November

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.18 in
Chance of precipitation63%
Record high89° (2019)
Record low74° (1974)
Sat, 0784° / 76°0.16Climate normal
84 °Climate normal

Arenal, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.16 in
Chance of precipitation58%
Record high89° (2021)
Record low73° (1961)
Sun, 0884° / 76°0.15Climate normal
84 °Climate normal

Arenal, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.15 in
Chance of precipitation70%
Record high88° (2021)
Record low74° (2022)
Mon, 0983° / 76°0.19Climate normal
83 °Climate normal

Arenal, Monday, 9 November

Climate normal for this date — 60-year average.

Average high83°
Average low76°
Average precipitation0.19 in
Chance of precipitation75%
Record high88° (2021)
Record low73° (1966)
Tue, 1083° / 76°0.15Climate normal
83 °Climate normal

Arenal, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high83°
Average low76°
Average precipitation0.15 in
Chance of precipitation77%
Record high88° (2018)
Record low72° (1984)

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 Arenal, 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 Arenal, 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.