| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 16.3° | 5.5° | 170.5mm | 11 | 66 |
| February | 17.1° | 6.1° | 146mm | 10.3 | 70 |
| March | 18.6° | 6.7° | 99.1mm | 9 | 78 |
| April | 20° | 7.8° | 54.8mm | 6.5 | 87 |
| May | 21.5° | 9.6° | 22.9mm | 3.6 | 93 |
| June | 22.8° | 11.1° | 4.3mm | 1.1 | 98 |
| July | 23° | 12.6° | 0.4mm | 0.6 | 99 |
| August | 23.7° | 12.8° | 1mm | 0.8 | 98 |
| September | 24.3° | 11.8° | 3mm | 1.2 | 98 |
| October | 22.5° | 9.8° | 35.3mm | 3.8 | 92 |
| November | 18.7° | 7.4° | 87.7mm | 7.2 | 81 |
| December | 15.8° | 5.3° | 164.6mm | 10.7 | 65 |
January in Santa Cruz averages a daily high of 16.3°C with nights around 5.5°C. Expect roughly 11 wet days totalling 170.5mm. Generally workable, with some weather to plan around.
February in Santa Cruz averages a daily high of 17.1°C with nights around 6.1°C. Expect roughly 10.3 wet days totalling 146mm. Generally workable, with some weather to plan around.
March in Santa Cruz averages a daily high of 18.6°C with nights around 6.7°C. Expect roughly 9 wet days totalling 99.1mm. Comfortable conditions for being outdoors all day.
April in Santa Cruz averages a daily high of 20°C with nights around 7.8°C. Expect roughly 6.5 wet days totalling 54.8mm. Comfortable conditions for being outdoors all day.
May in Santa Cruz averages a daily high of 21.5°C with nights around 9.6°C. Expect roughly 3.6 wet days totalling 22.9mm. Comfortable conditions for being outdoors all day.
June in Santa Cruz averages a daily high of 22.8°C with nights around 11.1°C. Rain is rare — about 1.1 wet days and 4.3mm across the month. Comfortable conditions for being outdoors all day.
July in Santa Cruz averages a daily high of 23°C with nights around 12.6°C. Rain is rare — about 0.6 wet days and 0.4mm across the month. Comfortable conditions for being outdoors all day.
August in Santa Cruz averages a daily high of 23.7°C with nights around 12.8°C. Rain is rare — about 0.8 wet days and 1mm across the month. Comfortable conditions for being outdoors all day.
September in Santa Cruz averages a daily high of 24.3°C with nights around 11.8°C. Rain is rare — about 1.2 wet days and 3mm across the month. Comfortable conditions for being outdoors all day.
October in Santa Cruz averages a daily high of 22.5°C with nights around 9.8°C. Expect roughly 3.8 wet days totalling 35.3mm. Comfortable conditions for being outdoors all day.
November in Santa Cruz averages a daily high of 18.7°C with nights around 7.4°C. Expect roughly 7.2 wet days totalling 87.7mm. Comfortable conditions for being outdoors all day.
December in Santa Cruz averages a daily high of 15.8°C with nights around 5.3°C. Expect roughly 10.7 wet days totalling 164.6mm. 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. Santa Cruz peaks at 99.
Based on 30 years of records, May–October scores highest for comfort in Santa Cruz, balancing daytime temperature against rainfall.
September is the warmest, averaging a daily high of 24.3°C.
January is the wettest, averaging 170.5mm of rain across roughly 11 wet days.
December is the coolest month, with average daily highs around 15.8°C.