| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 12.7° | 7.2° | — | — | 71 |
| February | 14.3° | 7.8° | — | — | 76 |
| March | 15.6° | 8° | — | — | 80 |
| April | 17.7° | 8.6° | — | — | 87 |
| May | 20.4° | 9.6° | — | — | 94 |
| June | 24.5° | 11.6° | — | — | 94 |
| July | 27.6° | 12.3° | — | — | 92 |
| August | 27.4° | 12.7° | — | — | 92 |
| September | 26.6° | 13.9° | — | — | 94 |
| October | 22.7° | 13.2° | — | — | 94 |
| November | 16.3° | 9.8° | — | — | 82 |
| December | 12.2° | 7.1° | — | — | 69 |
January in Novato averages a daily high of 12.7°C with nights around 7.2°C. Generally workable, with some weather to plan around.
February in Novato averages a daily high of 14.3°C with nights around 7.8°C. Comfortable conditions for being outdoors all day.
March in Novato averages a daily high of 15.6°C with nights around 8°C. Comfortable conditions for being outdoors all day.
April in Novato averages a daily high of 17.7°C with nights around 8.6°C. Comfortable conditions for being outdoors all day.
May in Novato averages a daily high of 20.4°C with nights around 9.6°C. Comfortable conditions for being outdoors all day.
June in Novato averages a daily high of 24.5°C with nights around 11.6°C. Comfortable conditions for being outdoors all day.
July in Novato averages a daily high of 27.6°C with nights around 12.3°C. Comfortable conditions for being outdoors all day.
August in Novato averages a daily high of 27.4°C with nights around 12.7°C. Comfortable conditions for being outdoors all day.
September in Novato averages a daily high of 26.6°C with nights around 13.9°C. Comfortable conditions for being outdoors all day.
October in Novato averages a daily high of 22.7°C with nights around 13.2°C. Comfortable conditions for being outdoors all day.
November in Novato averages a daily high of 16.3°C with nights around 9.8°C. Comfortable conditions for being outdoors all day.
December in Novato averages a daily high of 12.2°C with nights around 7.1°C. 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. Novato peaks at 94.
Based on 30 years of records, April–October scores highest for comfort in Novato, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 27.6°C.
January is the wettest, averaging —mm of rain across roughly — wet days.
December is the coolest month, with average daily highs around 12.2°C.