Baby clothes in San Francisco, CA: the weather each month
In shortIn San Francisco, CA, the average temperature goes from 52 °F (11.2 °C) in January to 63 °F (17.2 °C) in September, a swing of 11 °F (6 °C). Here the birth month does not change the clothes: a baby born on the 15th of any month needs 7 long-sleeve bodysuits by 6 months.
The typical weather in San Francisco
| Month | Average | Low | High |
|---|---|---|---|
| January | 52 °F (11.2 °C) | 47 °F (8.1 °C) | 58 °F (14.3 °C) |
| February | 54 °F (12.3 °C) | 48 °F (8.8 °C) | 60 °F (15.8 °C) |
| March | 56 °F (13.1 °C) | 49 °F (9.4 °C) | 62 °F (16.7 °C) |
| April | 56 °F (13.6 °C) | 50 °F (9.8 °C) | 63 °F (17.2 °C) |
| May | 58 °F (14.3 °C) | 51 °F (10.8 °C) | 64 °F (17.8 °C) |
| June | 60 °F (15.4 °C) | 53 °F (11.7 °C) | 67 °F (19.2 °C) |
| July | 60 °F (15.7 °C) | 54 °F (12.4 °C) | 66 °F (19.1 °C) |
| August | 62 °F (16.5 °C) | 56 °F (13.1 °C) | 68 °F (19.9 °C) |
| September | 63 °F (17.2 °C) | 56 °F (13.1 °C) | 70 °F (21.2 °C) |
| October | 62 °F (16.7 °C) | 54 °F (12.4 °C) | 70 °F (21.0 °C) |
| November | 57 °F (14.0 °C) | 51 °F (10.4 °C) | 64 °F (17.6 °C) |
| December | 53 °F (11.4 °C) | 47 °F (8.3 °C) | 58 °F (14.4 °C) |
Typical weather, the average of many years; not a forecast. Climate normals: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020, station SAN FRANCISCO DWTN, CA US (USW00023272). Palecki, M., Durre, I., Applequist, S., Arguez, A., Lawrimore, J. (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). https://doi.org/10.25921/wck8-er13. Accessed 2026-10-13.
What a baby born in San Francisco needs, by birth month
The birth month does not change the clothes: a baby born on the 15th of any month needs 7 long-sleeve bodysuits, 7 short-sleeve bodysuits, and 2 fleece sleepers by 6 months.
Without heating at home, a baby born on January 15 would need 12 long-sleeve bodysuits.
Cotokim's list engine, balanced style, laundry every 2 days, for 1 baby born on the 15th of each month, with a clothes dryer and a home heated in winter (the tool's starting answers in this country). A month is cold when its average is below 64 °F (18 °C), and hot from 75 °F (24 °C) up. The exact due date changes the numbers a little; the tool does the math for your month.
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The list for your baby in San Francisco
Pick the due month: the list follows the weather of each month your baby wears each size, with the reason behind every number.
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