Weather in Arecibo, PR
Arecibo, Thursday, 8 October, 06:03
Overcast. Feels like 76°. High 84°, low 75°.
Monthly outlook for Arecibo, PR: average high 84.9°, average low 75.1°. That is 0.8° below the climate normal for October. Precipitation is expected on 16 days (about 5.7 inches), against a normal of 12 days and 3.1 inches. The warmest day looks like 23 October (86.2°), the coolest 15 October (73.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 84.6° | 86.6° | -1.1° |
| 18 October – 27 October | 85.4° | 85.9° | -0.3° |
| 28 October – 6 November | at normal | 85.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Carrizales (4 mi).
0.06
Arecibo, Friday, 9 October
Light rain. High 86°, low 75°.
0.11Arecibo, Saturday, 10 October
Light rain. High 84°, low 77°.
0.16Arecibo, Sunday, 11 October
Light rain. High 84°, low 76°.
0.1Arecibo, Monday, 12 October
Light rain. High 85°, low 75°.
0.16Arecibo, Tuesday, 13 October
Rain. High 85°, low 76°.
0.56Arecibo, Wednesday, 14 October
Rain. High 85°, low 74°.
2.22Arecibo, Thursday, 15 October
Heavy rain. High 84°, low 74°.
0.16Arecibo, Friday, 16 October
Light rain. High 85°, low 74°.
0.18Arecibo, Saturday, 17 October
Rain. High 85°, low 76°.
0.35Arecibo, Sunday, 18 October
Rain. High 85°, low 75°.
0.34Arecibo, Monday, 19 October
Rain. High 85°, low 75°.
0.34Arecibo, Tuesday, 20 October
Rain. High 86°, low 75°.
0.41Arecibo, Wednesday, 21 October
Rain. High 85°, low 76°.
0.26Arecibo, Thursday, 22 October
Rain. High 85°, low 75°.
0.04Arecibo, Friday, 23 October
Light rain. High 86°, low 74°.
0.17Arecibo, Saturday, 24 October
Climate normal for this date — 60-year average.
0.19Arecibo, Sunday, 25 October
Climate normal for this date — 60-year average.
0.21Arecibo, Monday, 26 October
Climate normal for this date — 60-year average.
0.19Arecibo, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.17Arecibo, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.2Arecibo, Thursday, 29 October
Climate normal for this date — 60-year average.
0.19Arecibo, Friday, 30 October
Climate normal for this date — 60-year average.
0.19Arecibo, Saturday, 31 October
Climate normal for this date — 60-year average.
0.18Arecibo, Sunday, 1 November
Climate normal for this date — 60-year average.
0.15Arecibo, Monday, 2 November
Climate normal for this date — 60-year average.
0.16Arecibo, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.15Arecibo, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.19Arecibo, Thursday, 5 November
Climate normal for this date — 60-year average.
0.18Arecibo, 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 Arecibo, 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 Arecibo, 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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