Monthly outlook for San Mateo, CA: average high 59.2°, average low 51.5°. That is 0.8° below the climate normal for November. Precipitation is expected on 4 days (about 3.0 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 14 November (65.3°), the coolest 14 November (45.4°).
59.2°/51.5°
Average high / low
−0.8°
Below normal
4 / 4
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
58.1°
61.3°
-1.8°
23 November – 2 December
61°
59°
+1.1°
3 December – 12 December
at normal
57.5°
—
November records over 66 years
84°4 November 1976All-time high
36°24 November 2010All-time low
Sat, 1465° / 45°0.02
65 °
San Mateo, Saturday, 14 November
Light rain. High 65°, low 45°.
Pressure29.97 inHg
Wind2.8 mph E
Humidity67%
Visibility6.2 mi
Dew point50°
Sun, 1563° / 56°0.49
63 °
San Mateo, Sunday, 15 November
Heavy rain. High 63°, low 56°.
Pressure30.00 inHg
Wind11.8 mph S
Humidity69%
Visibility4.5 mi
Dew point53°
Mon, 1659° / 53°0.01
59 °
San Mateo, Monday, 16 November
Light rain. High 59°, low 53°.
Pressure30.15 inHg
Wind8.5 mph NW
Humidity59%
Visibility6.2 mi
Dew point44°
Tue, 1758° / 51°0
58 °
San Mateo, Tuesday, 17 November
Clear. High 58°, low 51°.
Pressure30.12 inHg
Wind11.8 mph NW
Humidity57%
Visibility—
Dew point40°
Wed, 1857° / 52°0.55
57 °
San Mateo, Wednesday, 18 November
Rain. High 57°, low 52°.
Pressure30.15 inHg
Wind10.7 mph S
Humidity94%
Visibility—
Dew point53°
Thu, 1952° / 48°1.03
52 °
San Mateo, Thursday, 19 November
Heavy rain. High 52°, low 48°.
Pressure29.97 inHg
Wind16.7 mph SE
Humidity86%
Visibility—
Dew point45°
Fri, 2054° / 48°0
54 °
San Mateo, Friday, 20 November
Overcast. High 54°, low 48°.
Pressure29.94 inHg
Wind5.6 mph N
Humidity57%
Visibility—
Dew point37°
Sat, 2154° / 46°0
54 °
San Mateo, Saturday, 21 November
Clear. High 54°, low 46°.
Pressure30.00 inHg
Wind4.8 mph SW
Humidity63%
Visibility—
Dew point39°
Sun, 2257° / 51°0.02
57 °
San Mateo, Sunday, 22 November
Light rain. High 57°, low 51°.
Pressure30.15 inHg
Wind6.6 mph NW
Humidity64%
Visibility—
Dew point42°
Mon, 2357° / 49°0
57 °
San Mateo, Monday, 23 November
Clear. High 57°, low 49°.
Pressure30.24 inHg
Wind5.7 mph NW
Humidity64%
Visibility—
Dew point42°
Tue, 2460° / 52°0
60 °
San Mateo, Tuesday, 24 November
Overcast. High 60°, low 52°.
Pressure30.27 inHg
Wind5.9 mph N
Humidity65%
Visibility—
Dew point45°
Wed, 2561° / 54°0
61 °
San Mateo, Wednesday, 25 November
Overcast. High 61°, low 54°.
Pressure30.27 inHg
Wind6.5 mph NW
Humidity67%
Visibility—
Dew point47°
Thu, 2664° / 58°0
64 °
San Mateo, Thursday, 26 November
Overcast. High 64°, low 58°.
Pressure30.27 inHg
Wind9.4 mph NW
Humidity78%
Visibility—
Dew point55°
Fri, 2761° / 56°0
61 °
San Mateo, Friday, 27 November
Overcast. High 61°, low 56°.
Pressure30.15 inHg
Wind7 mph NW
Humidity85%
Visibility—
Dew point54°
Sat, 2863° / 56°0
63 °
San Mateo, Saturday, 28 November
Overcast. High 63°, low 56°.
Pressure30.03 inHg
Wind5.3 mph SW
Humidity70%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2959° / 47°0.11
59 °
San Mateo, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.11 in
Chance of precipitation25%
Record high69° (1977)
Record low38° (2006)
Mon, 3058° / 47°0.16
58 °
San Mateo, Monday, 30 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.16 in
Chance of precipitation25%
Record high67° (2008)
Record low39° (2007)
Tue, 0159° / 47°0.11
59 °
San Mateo, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.11 in
Chance of precipitation27%
Record high67° (2021)
Record low40° (2007)
Wed, 0258° / 47°0.17
58 °
San Mateo, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.17 in
Chance of precipitation25%
Record high68° (1986)
Record low39° (2022)
Thu, 0359° / 47°0.12
59 °
San Mateo, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.12 in
Chance of precipitation27%
Record high70° (1979)
Record low40° (2005)
Fri, 0458° / 47°0.07
58 °
San Mateo, Friday, 4 December
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (1979)
Record low37° (1971)
Sat, 0558° / 47°0.08
58 °
San Mateo, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.08 in
Chance of precipitation25%
Record high65° (1962)
Record low36° (1972)
Sun, 0658° / 47°0.07
58 °
San Mateo, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.07 in
Chance of precipitation30%
Record high67° (1962)
Record low36° (1978)
Mon, 0758° / 46°0.09
58 °
San Mateo, Monday, 7 December
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (1975)
Record low33° (1978)
Tue, 0857° / 46°0.07
57 °
San Mateo, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high57°
Average low46°
Average precipitation0.07 in
Chance of precipitation20%
Record high68° (1990)
Record low31° (1972)
Wed, 0958° / 46°0.07
58 °
San Mateo, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.07 in
Chance of precipitation32%
Record high68° (1990)
Record low26° (1972)
Thu, 1057° / 46°0.12
57 °
San Mateo, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high57°
Average low46°
Average precipitation0.12 in
Chance of precipitation25%
Record high65° (1962)
Record low29° (1972)
Fri, 1156° / 45°0.13
56 °
San Mateo, Friday, 11 December
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.13 in
Chance of precipitation28%
Record high65° (1988)
Record low31° (1972)
Sat, 1256° / 46°0.13
56 °
San Mateo, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.13 in
Chance of precipitation28%
Record high65° (1988)
Record low36° (2013)
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.