Weather in Rio Piedras, PR
Rio Piedras, Saturday, 31 October, 03:21
Mostly clear. Feels like 79°. High 88°, low 76°.
Monthly outlook for Rio Piedras, PR: average high 86.8°, average low 75.6°. That is 1.1° above the climate normal for October. Precipitation is expected on 12 days (about 2.5 inches), against a normal of 13 days and 3.0 inches. The warmest day looks like 3 November (88.8°), the coolest 15 November (74.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 86.7° | 85.1° | +0.9° |
| 10 November – 19 November | 86.9° | 84.3° | +1.4° |
| 20 November – 29 November | at normal | 83.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — San Juan (1 mi).
0.03
Rio Piedras, Sunday, 1 November
Light rain. High 89°, low 77°.
0.48Rio Piedras, Monday, 2 November
Rain. High 84°, low 75°.
0.03Rio Piedras, Tuesday, 3 November
Light rain. High 89°, low 77°.
0.13Rio Piedras, Wednesday, 4 November
Light rain. High 87°, low 75°.
0.13Rio Piedras, Thursday, 5 November
Light rain. High 86°, low 75°.
0.28Rio Piedras, Friday, 6 November
Rain. High 87°, low 75°.
0.24Rio Piedras, Saturday, 7 November
Rain. High 87°, low 75°.
0.41Rio Piedras, Sunday, 8 November
Rain. High 86°, low 76°.
0.17Rio Piedras, Monday, 9 November
Light rain. High 86°, low 75°.
0.31Rio Piedras, Tuesday, 10 November
Rain. High 86°, low 75°.
0.01Rio Piedras, Wednesday, 11 November
Light rain. High 88°, low 76°.
0.04Rio Piedras, Thursday, 12 November
Light rain. High 88°, low 77°.
0.14Rio Piedras, Friday, 13 November
Light rain. High 87°, low 76°.
0.11Rio Piedras, Saturday, 14 November
Light rain. High 87°, low 75°.
0
Rio Piedras, Sunday, 15 November
Partly cloudy. High 85°, low 75°.
0.13Rio Piedras, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Rio Piedras, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.16Rio Piedras, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.15Rio Piedras, Thursday, 19 November
Climate normal for this date — 60-year average.
0.13Rio Piedras, Friday, 20 November
Climate normal for this date — 60-year average.
0.12Rio Piedras, Saturday, 21 November
Climate normal for this date — 60-year average.
0.18Rio Piedras, Sunday, 22 November
Climate normal for this date — 60-year average.
0.13Rio Piedras, Monday, 23 November
Climate normal for this date — 60-year average.
0.12Rio Piedras, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.11Rio Piedras, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.11Rio Piedras, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Rio Piedras, Friday, 27 November
Climate normal for this date — 60-year average.
0.11Rio Piedras, Saturday, 28 November
Climate normal for this date — 60-year average.
0.08Rio Piedras, Sunday, 29 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 Rio Piedras, 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 Rio Piedras, 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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