Weather in Arenas, PR
Arenas, Thursday, 8 October, 12:39
Rain. Feels like 103°. High 90°, low 75°.
Monthly outlook for Arenas, PR: average high 84.7°, average low 72.6°. That is 0.2° below the climate normal for October. Precipitation is expected on 16 days (about 4.5 inches), against a normal of 11 days and 2.4 inches. The warmest day looks like 8 October (90.4°), the coolest 13 October (68°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 86.4° | 85.1° | +0.7° |
| 18 October – 27 October | 81.8° | 84.6° | -1.5° |
| 28 October – 6 November | at normal | 84.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Yauco (3 mi).
0.23Arenas, Friday, 9 October
Rain. High 87°, low 74°.
0.35Arenas, Saturday, 10 October
Rain. High 86°, low 69°.
0.1Arenas, Sunday, 11 October
Light rain. High 86°, low 69°.
0.07Arenas, Monday, 12 October
Light rain. High 87°, low 70°.
0.11Arenas, Tuesday, 13 October
Light rain. High 88°, low 68°.
0.66Arenas, Wednesday, 14 October
Rain. High 88°, low 72°.
0.29Arenas, Thursday, 15 October
Rain. High 83°, low 75°.
0.28Arenas, Friday, 16 October
Rain. High 84°, low 75°.
0.3Arenas, Saturday, 17 October
Rain. High 85°, low 75°.
0.36Arenas, Sunday, 18 October
Light rain. High 80°, low 74°.
0.31Arenas, Monday, 19 October
Light rain. High 81°, low 73°.
0.46Arenas, Tuesday, 20 October
Rain. High 83°, low 73°.
0.6Arenas, Wednesday, 21 October
Rain. High 82°, low 73°.
0.11Arenas, Thursday, 22 October
Light rain. High 82°, low 72°.
0.09Arenas, Friday, 23 October
Light rain. High 83°, low 74°.
0.1Arenas, Saturday, 24 October
Climate normal for this date — 60-year average.
0.14Arenas, Sunday, 25 October
Climate normal for this date — 60-year average.
0.15Arenas, Monday, 26 October
Climate normal for this date — 60-year average.
0.19Arenas, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.16Arenas, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.15Arenas, Thursday, 29 October
Climate normal for this date — 60-year average.
0.15Arenas, Friday, 30 October
Climate normal for this date — 60-year average.
0.11Arenas, Saturday, 31 October
Climate normal for this date — 60-year average.
0.11Arenas, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Arenas, Monday, 2 November
Climate normal for this date — 60-year average.
0.12Arenas, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.13Arenas, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Arenas, Thursday, 5 November
Climate normal for this date — 60-year average.
0.13Arenas, Friday, 6 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 Arenas, 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 Arenas, 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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