Weather in San Mateo, CA
San Mateo, Sunday, 15 November, 06:10
Fog. Feels like 54°. High 65°, low 53°.
Monthly outlook for San Mateo, CA: average high 59.6°, average low 52.4°. That is 0.3° below the climate normal for November. Precipitation is expected on 9 days (about 3.4 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 15 November (65°), the coolest 17 November (50°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 59.2° | 60.8° | -0.9° |
| 25 November – 4 December | 60.3° | 58.7° | +0.9° |
| 5 December – 14 December | at normal | 57° | — |
November records over 66 years
0.13
San Mateo, Monday, 16 November
Rain. High 59°, low 52°.
0
San Mateo, Tuesday, 17 November
Clear. High 58°, low 50°.
1.06San Mateo, Wednesday, 18 November
Heavy rain. High 59°, low 51°.
0.66San Mateo, Thursday, 19 November
Rain. High 52°, low 50°.
0.13San Mateo, Friday, 20 November
Light rain. High 56°, low 51°.
0.02San Mateo, Saturday, 21 November
Light rain. High 60°, low 52°.
0.46San Mateo, Sunday, 22 November
Rain. High 59°, low 54°.
0
San Mateo, Monday, 23 November
Overcast. High 61°, low 53°.
0.38San Mateo, Tuesday, 24 November
Rain. High 62°, low 55°.
0San Mateo, Wednesday, 25 November
Overcast. High 59°, low 52°.
0San Mateo, Thursday, 26 November
Overcast. High 61°, low 52°.
0.24San Mateo, Friday, 27 November
Rain. High 63°, low 54°.
0.06San Mateo, Saturday, 28 November
Light rain. High 60°, low 56°.
0San Mateo, Sunday, 29 November
Overcast. High 59°, low 52°.
0San Mateo, Monday, 30 November
Clear. High 61°, low 52°.
0.11
San Mateo, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.17San Mateo, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.12San Mateo, Thursday, 3 December
Climate normal for this date — 60-year average.
0.07San Mateo, Friday, 4 December
Climate normal for this date — 60-year average.
0.08San Mateo, Saturday, 5 December
Climate normal for this date — 60-year average.
0.07San Mateo, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09San Mateo, Monday, 7 December
Climate normal for this date — 60-year average.
0.07San Mateo, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.07San Mateo, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.12San Mateo, Thursday, 10 December
Climate normal for this date — 60-year average.
0.13San Mateo, Friday, 11 December
Climate normal for this date — 60-year average.
0.13San Mateo, Saturday, 12 December
Climate normal for this date — 60-year average.
0.11San Mateo, Sunday, 13 December
Climate normal for this date — 60-year average.
0.13San Mateo, Monday, 14 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 Mateo, CA 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 Mateo, CA 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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