| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 14.8° | 7.9° | 93.4mm | 10.5 | 62 |
| February | 15.2° | 8° | 101.2mm | 10.3 | 64 |
| March | 15.4° | 8.7° | 73.4mm | 10 | 65 |
| April | 15.1° | 9.1° | 34.9mm | 6 | 72 |
| May | 15.1° | 10.3° | 16mm | 3 | 78 |
| June | 15.5° | 11.2° | 2.8mm | 1 | 84 |
| July | 16° | 12.2° | 0.2mm | 0.3 | 87 |
| August | 16.8° | 12.7° | 1mm | 0.5 | 89 |
| September | 17.9° | 12.4° | 2.2mm | 0.9 | 91 |
| October | 18.4° | 11.4° | 22.4mm | 3.3 | 88 |
| November | 17.1° | 9.9° | 57.7mm | 6.9 | 77 |
| December | 14.9° | 7.7° | 123.6mm | 12.3 | 59 |
January in Daly City averages a daily high of 14.8°C with nights around 7.9°C. Expect roughly 10.5 wet days totalling 93.4mm. Generally workable, with some weather to plan around.
February in Daly City averages a daily high of 15.2°C with nights around 8°C. Expect roughly 10.3 wet days totalling 101.2mm. Generally workable, with some weather to plan around.
March in Daly City averages a daily high of 15.4°C with nights around 8.7°C. Expect roughly 10 wet days totalling 73.4mm. Generally workable, with some weather to plan around.
April in Daly City averages a daily high of 15.1°C with nights around 9.1°C. Expect roughly 6 wet days totalling 34.9mm. Generally workable, with some weather to plan around.
May in Daly City averages a daily high of 15.1°C with nights around 10.3°C. Expect roughly 3 wet days totalling 16mm. Comfortable conditions for being outdoors all day.
June in Daly City averages a daily high of 15.5°C with nights around 11.2°C. Rain is rare — about 1 wet days and 2.8mm across the month. Comfortable conditions for being outdoors all day.
July in Daly City averages a daily high of 16°C with nights around 12.2°C. Rain is rare — about 0.3 wet days and 0.2mm across the month. Comfortable conditions for being outdoors all day.
August in Daly City averages a daily high of 16.8°C with nights around 12.7°C. Rain is rare — about 0.5 wet days and 1mm across the month. Comfortable conditions for being outdoors all day.
September in Daly City averages a daily high of 17.9°C with nights around 12.4°C. Rain is rare — about 0.9 wet days and 2.2mm across the month. Comfortable conditions for being outdoors all day.
October in Daly City averages a daily high of 18.4°C with nights around 11.4°C. Expect roughly 3.3 wet days totalling 22.4mm. Comfortable conditions for being outdoors all day.
November in Daly City averages a daily high of 17.1°C with nights around 9.9°C. Expect roughly 6.9 wet days totalling 57.7mm. Comfortable conditions for being outdoors all day.
December in Daly City averages a daily high of 14.9°C with nights around 7.7°C. Expect roughly 12.3 wet days totalling 123.6mm. Generally workable, with some weather to plan around.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Daly City peaks at 91.
Based on 30 years of records, June–October scores highest for comfort in Daly City, balancing daytime temperature against rainfall.
October is the warmest, averaging a daily high of 18.4°C.
December is the wettest, averaging 123.6mm of rain across roughly 12.3 wet days.
January is the coolest month, with average daily highs around 14.8°C.