| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 23° | 12.9° | 17.2mm | 1.3 | 97 |
| February | 23.8° | 13° | 32.1mm | 2.3 | 95 |
| March | 24.7° | 14.3° | 21.6mm | 2.8 | 94 |
| April | 25.5° | 15.8° | 51.2mm | 6.1 | 88 |
| May | 24.8° | 16.5° | 380.9mm | 19 | 70 |
| June | 24.3° | 16.4° | 393.3mm | 19.6 | 70 |
| July | 23.1° | 16.2° | 635.7mm | 24.5 | 70 |
| August | 22.4° | 16.1° | 914.8mm | 24.7 | 70 |
| September | 23.2° | 16.1° | 476.5mm | 22.7 | 70 |
| October | 23.4° | 15.5° | 296.4mm | 13.4 | 73 |
| November | 24° | 15.1° | 155.9mm | 10.3 | 79 |
| December | 23.7° | 14.1° | 79mm | 6 | 88 |
January in San Fernando averages a daily high of 23°C with nights around 12.9°C. Rain is rare — about 1.3 wet days and 17.2mm across the month. Comfortable conditions for being outdoors all day.
February in San Fernando averages a daily high of 23.8°C with nights around 13°C. Rain is rare — about 2.3 wet days and 32.1mm across the month. Comfortable conditions for being outdoors all day.
March in San Fernando averages a daily high of 24.7°C with nights around 14.3°C. Rain is rare — about 2.8 wet days and 21.6mm across the month. Comfortable conditions for being outdoors all day.
April in San Fernando averages a daily high of 25.5°C with nights around 15.8°C. Expect roughly 6.1 wet days totalling 51.2mm. Comfortable conditions for being outdoors all day.
May in San Fernando averages a daily high of 24.8°C with nights around 16.5°C. Expect roughly 19 wet days totalling 380.9mm. Generally workable, with some weather to plan around.
June in San Fernando averages a daily high of 24.3°C with nights around 16.4°C. Expect roughly 19.6 wet days totalling 393.3mm. Generally workable, with some weather to plan around.
July in San Fernando averages a daily high of 23.1°C with nights around 16.2°C. Expect roughly 24.5 wet days totalling 635.7mm. Generally workable, with some weather to plan around.
August in San Fernando averages a daily high of 22.4°C with nights around 16.1°C. Expect roughly 24.7 wet days totalling 914.8mm. Generally workable, with some weather to plan around.
September in San Fernando averages a daily high of 23.2°C with nights around 16.1°C. Expect roughly 22.7 wet days totalling 476.5mm. Generally workable, with some weather to plan around.
October in San Fernando averages a daily high of 23.4°C with nights around 15.5°C. Expect roughly 13.4 wet days totalling 296.4mm. Generally workable, with some weather to plan around.
November in San Fernando averages a daily high of 24°C with nights around 15.1°C. Expect roughly 10.3 wet days totalling 155.9mm. Comfortable conditions for being outdoors all day.
December in San Fernando averages a daily high of 23.7°C with nights around 14.1°C. Expect roughly 6 wet days totalling 79mm. Comfortable conditions for being outdoors all day.
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. San Fernando peaks at 97.
Based on 30 years of records, January–March scores highest for comfort in San Fernando, balancing daytime temperature against rainfall.
April is the warmest, averaging a daily high of 25.5°C.
August is the wettest, averaging 914.8mm of rain across roughly 24.7 wet days.
August is the coolest month, with average daily highs around 22.4°C.