Weather in San Isidro, PR
San Isidro, Monday, 9 November, 07:32
Partly cloudy. Feels like 78°. High 89°, low 76°.
Monthly outlook for San Isidro, PR: average high 86.6°, average low 76.4°. That is 1.9° above the climate normal for November. Precipitation is expected on 10 days (about 2.5 inches), against a normal of 12 days and 2.5 inches. The warmest day looks like 10 November (91.5°), the coolest 21 November (74.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 November – 18 November | 88.3° | 83.3° | +2.8° |
| 19 November – 28 November | 83.7° | 82.7° | +0.6° |
| 29 November – 8 December | at normal | 81.9° | — |
November records over 66 years
0.05
San Isidro, Tuesday, 10 November
Light rain. High 91°, low 77°.
0San Isidro, Wednesday, 11 November
Light rain. High 90°, low 77°.
0
San Isidro, Thursday, 12 November
Mostly clear. High 90°, low 78°.
0San Isidro, Friday, 13 November
Mostly clear. High 90°, low 80°.
0.02San Isidro, Saturday, 14 November
Light rain. High 91°, low 79°.
0.03San Isidro, Sunday, 15 November
Light rain. High 86°, low 77°.
0.01San Isidro, Monday, 16 November
Light rain. High 86°, low 75°.
0.04San Isidro, Tuesday, 17 November
Light rain. High 84°, low 75°.
0.22San Isidro, Wednesday, 18 November
Light rain. High 85°, low 76°.
0.19San Isidro, Thursday, 19 November
Light rain. High 84°, low 76°.
0.76San Isidro, Friday, 20 November
Rain. High 82°, low 75°.
0.4San Isidro, Saturday, 21 November
Rain. High 83°, low 74°.
0.28San Isidro, Sunday, 22 November
Light rain. High 83°, low 75°.
0.09San Isidro, Monday, 23 November
Light rain. High 85°, low 76°.
0.16San Isidro, Tuesday, 24 November
Rain. High 86°, low 76°.
0.11San Isidro, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.11San Isidro, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09San Isidro, Friday, 27 November
Climate normal for this date — 60-year average.
0.11San Isidro, Saturday, 28 November
Climate normal for this date — 60-year average.
0.08San Isidro, Sunday, 29 November
Climate normal for this date — 60-year average.
0.09San Isidro, Monday, 30 November
Climate normal for this date — 60-year average.
0.1San Isidro, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.09San Isidro, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.08San Isidro, Thursday, 3 December
Climate normal for this date — 60-year average.
0.1San Isidro, Friday, 4 December
Climate normal for this date — 60-year average.
0.11San Isidro, Saturday, 5 December
Climate normal for this date — 60-year average.
0.08San Isidro, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09San Isidro, Monday, 7 December
Climate normal for this date — 60-year average.
0.09San Isidro, Tuesday, 8 December
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 San Isidro, 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 San Isidro, 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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