Weather in Sierra Bayamón, PR
Sierra Bayamón, Sunday, 9 August, 01:29
Mostly clear. Feels like 90°. High 90°, low 78°.
Monthly outlook for Sierra Bayamón, PR: average high 91.3°, average low 77.4°. That is 1.4° above the climate normal for August. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 10 days and 1.8 inches. The warmest day looks like 19 August (94.5°), the coolest 22 August (76.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 90.6° | 88.9° | +0.9° |
| 19 August – 28 August | 92.6° | 88.8° | +2.1° |
| 29 August – 7 September | at normal | 88.8° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Bayamón (2 mi).
0
Sierra Bayamón, Monday, 10 August
Partly cloudy. High 92°, low 78°.
0.02
Sierra Bayamón, Tuesday, 11 August
Light rain. High 91°, low 77°.
0
Sierra Bayamón, Wednesday, 12 August
Overcast. High 92°, low 77°.
0.02Sierra Bayamón, Thursday, 13 August
Light rain. High 91°, low 78°.
0.02Sierra Bayamón, Friday, 14 August
Light rain. High 90°, low 78°.
0.02Sierra Bayamón, Saturday, 15 August
Light rain. High 90°, low 79°.
0.01Sierra Bayamón, Sunday, 16 August
Light rain. High 90°, low 76°.
0.1Sierra Bayamón, Monday, 17 August
Light rain. High 88°, low 78°.
0.49Sierra Bayamón, Tuesday, 18 August
Rain. High 91°, low 78°.
0.02Sierra Bayamón, Wednesday, 19 August
Light rain. High 95°, low 77°.
0
Sierra Bayamón, Thursday, 20 August
Clear. High 93°, low 78°.
0Sierra Bayamón, Friday, 21 August
Clear. High 92°, low 76°.
0Sierra Bayamón, Saturday, 22 August
Light rain. High 92°, low 76°.
0Sierra Bayamón, Sunday, 23 August
Light rain. High 91°, low 77°.
0
Sierra Bayamón, Monday, 24 August
Mostly clear. High 92°, low 78°.
0.1Sierra Bayamón, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.11Sierra Bayamón, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Sierra Bayamón, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Sierra Bayamón, Friday, 28 August
Climate normal for this date — 60-year average.
0.1Sierra Bayamón, Saturday, 29 August
Climate normal for this date — 60-year average.
0.19Sierra Bayamón, Sunday, 30 August
Climate normal for this date — 60-year average.
0.12Sierra Bayamón, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Sierra Bayamón, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Sierra Bayamón, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Sierra Bayamón, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Sierra Bayamón, Friday, 4 September
Climate normal for this date — 60-year average.
0.21Sierra Bayamón, Saturday, 5 September
Climate normal for this date — 60-year average.
0.2Sierra Bayamón, Sunday, 6 September
Climate normal for this date — 60-year average.
0.12Sierra Bayamón, Monday, 7 September
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 Sierra Bayamón, 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 Sierra Bayamón, 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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