Weather in Arenal, PR
Arenal, Thursday, 15 October, 18:11
Light rain. Feels like 95°. High 88°, low 78°.
Monthly outlook for Arenal, PR: average high 86.6°, average low 77.9°. That is 1.2° above the climate normal for October. Precipitation is expected on 9 days (about 3.0 inches), against a normal of 11 days and 2.5 inches. The warmest day looks like 17 October (91.2°), the coolest 20 October (74.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 87.4° | 84.6° | +1.6° |
| 25 October – 3 November | 85.3° | 84.1° | +0.6° |
| 4 November – 13 November | at normal | 83.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Salinas (1 mi).
0.01Arenal, Friday, 16 October
Light rain. High 89°, low 77°.
0
Arenal, Saturday, 17 October
Partly cloudy. High 91°, low 76°.
0.07Arenal, Sunday, 18 October
Light rain. High 90°, low 75°.
0.05Arenal, Monday, 19 October
Light rain. High 90°, low 75°.
0.07Arenal, Tuesday, 20 October
Light rain. High 89°, low 75°.
0.01Arenal, Wednesday, 21 October
Light rain. High 85°, low 75°.
0.18Arenal, Thursday, 22 October
Light rain. High 85°, low 78°.
0.56Arenal, Friday, 23 October
Rain. High 83°, low 80°.
0.71Arenal, Saturday, 24 October
Rain. High 84°, low 81°.
0.57Arenal, Sunday, 25 October
Rain. High 84°, low 81°.
0.55Arenal, Monday, 26 October
Rain. High 83°, low 80°.
0.13Arenal, Tuesday, 27 October
Light rain. High 84°, low 79°.
0.02Arenal, Wednesday, 28 October
Light rain. High 86°, low 79°.
0
Arenal, Thursday, 29 October
Clear. High 87°, low 79°.
0.03Arenal, Friday, 30 October
Light rain. High 87°, low 78°.
0.13Arenal, Saturday, 31 October
Climate normal for this date — 60-year average.
0.16Arenal, Sunday, 1 November
Climate normal for this date — 60-year average.
0.15Arenal, Monday, 2 November
Climate normal for this date — 60-year average.
0.14Arenal, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.15Arenal, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.17Arenal, Thursday, 5 November
Climate normal for this date — 60-year average.
0.18Arenal, Friday, 6 November
Climate normal for this date — 60-year average.
0.16Arenal, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15Arenal, Sunday, 8 November
Climate normal for this date — 60-year average.
0.19Arenal, Monday, 9 November
Climate normal for this date — 60-year average.
0.15Arenal, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.16Arenal, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.14Arenal, Thursday, 12 November
Climate normal for this date — 60-year average.
0.11Arenal, Friday, 13 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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