Climate averages 1991–2020

Redwood City weather
in March.

A mild, moderately wet month: the 9th warmest and the 9th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 16.2°C Daytime mean, March
Average low 8.6°C Night-time mean, March
Rainfall 82 mm 9 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Redwood City · average highYear overview

March is a mild month in Redwood City: daytime highs average 16.2°C and nights cool to about 8.6°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 82 mm of rain on roughly 9 days, which makes March a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.

The nearest other city in this atlas is San Mateo (12 km away). In March its highs average 16.1°C, about as warm as Redwood City, with 82 mm of rain.

Among the 498 cities listed in the United States, Redwood City ranks joint 247th of 498 for the warmest March highs and joint 286th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Redwood City is 1.3°C warmer than that mean.

From March to April, average highs rise by 1.4°C to 17.6°C, and monthly rainfall falls from 82 mm to 41 mm.

The annual picture

March in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Redwood City climate table

1991–2020
Monthly climate averages for Redwood City, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 14.1°C6.9°C6.9°C999.49.910 h
February 14.9°C7.6°C7.6°C1079.510.811 h
March, selected 16.2°C8.6°C8.6°C829.111.912 h
April 17.6°C9.4°C9.4°C415.613.113 h
May 19.8°C10.9°C10.9°C203.314.214 h
June 22.5°C12.4°C12.4°C3.90.914.715 h
July 24.2°C13.9°C13.9°C0.50.214.514 h
August 24.5°C14.4°C14.4°C0.70.113.614 h
September 24.6°C14.5°C14.5°C1.80.412.512 h
October 22.1°C13.1°C13.1°C233.011.311 h
November 17.2°C10.1°C10.1°C516.010.210 h
December 13.8°C7.5°C7.5°C949.39.610 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

March in nearby cities

Distance from Redwood City

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Redwood City) is explained once on the Redwood City year overview and on the Sources, method and limits page.

San Mateo lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.