Foster City Weather History California, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Mon 23 Jun, 2025 Weather in Foster City

Sunrise: 05:49 AM Sunset: 08:34 PM	Moonrise: 03:43 AM Moonset: 07:23 PM	Max: 17.8 °c	Min: 11.0 °c	Avg: 13.5 °c	Precip: 0.00 mm	Max Wind: 16.9 kph

	Mon 23 0:00 am	Mon 23 3:00 am	Mon 23 6:00 am	Mon 23 9:00 am	Mon 23 12:00 pm	Mon 23 3:00 pm	Mon 23 6:00 pm	Mon 23 9:00 pm
Icon
Temp	11.2°c	11.0°c	11.2°c	12.1°c	15.7°c	17.8°c	16.0°c	13.2°c
Wind	7.9 kmph	6.1 kmph	5.8 kmph	6.5 kmph	9.0 kmph	16.9 kmph	14.0 kmph	9.0 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	100%	100%	99%	95%	60%	31%	43%	64%
Humidity	94%	95%	95%	91%	76%	64%	72%	84%
Pressure	1014 mb	1013 mb	1013 mb	1014 mb	1013 mb	1013 mb	1013 mb	1013 mb

Foster City Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	14°C / 58°F	8°C / 46°F	11°C / 51°F	217 hours	83.09 mm / 3.27 In	6 days	1020 mb / 31 In
February	15°C / 59°F	8°C / 46°F	11°C / 52°F	202 hours	87.22 mm / 3.43 In	5 days	1019 mb / 31 In
March	16°C / 60°F	8°C / 47°F	12°C / 53°F	196 hours	82.46 mm / 3.25 In	6 days	1018 mb / 31 In
April	18°C / 64°F	9°C / 48°F	13°C / 55°F	249 hours	29.78 mm / 1.17 In	3 days	1017 mb / 31 In
May	19°C / 67°F	10°C / 51°F	14°C / 58°F	293 hours	14.35 mm / 0.56 In	2 days	1015 mb / 30 In
June	22°C / 72°F	12°C / 54°F	17°C / 62°F	318 hours	3.75 mm / 0.15 In	1 days	1013 mb / 30 In
July	24°C / 75°F	14°C / 56°F	18°C / 64°F	349 hours	0.77 mm / 0.03 In	0 days	1014 mb / 30 In
August	24°C / 75°F	14°C / 58°F	18°C / 65°F	351 hours	0.17 mm / 0.01 In	0 days	1013 mb / 30 In
September	24°C / 75°F	15°C / 58°F	19°C / 65°F	322 hours	2.63 mm / 0.10 In	0 days	1013 mb / 30 In
October	22°C / 71°F	13°C / 56°F	17°C / 63°F	300 hours	27.70 mm / 1.09 In	2 days	1015 mb / 30 In
November	17°C / 63°F	10°C / 51°F	13°C / 56°F	255 hours	50.13 mm / 1.97 In	3 days	1018 mb / 31 In
December	14°C / 57°F	8°C / 47°F	11°C / 52°F	205 hours	103.16 mm / 4.06 In	6 days	1019 mb / 31 In

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