| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 16.4° | 6.8° | 73.4mm | 8.7 | 71 |
| February | 17.7° | 7.6° | 47.9mm | 6.3 | 80 |
| March | 19.8° | 9.7° | 62.4mm | 8.3 | 83 |
| April | 21.9° | 11.8° | 44.1mm | 6.7 | 87 |
| May | 25° | 14.5° | 27.6mm | 3.7 | 93 |
| June | 28.1° | 17.7° | 3.8mm | 1.1 | 93 |
| July | 30.5° | 19.6° | 0.5mm | 0.3 | 85 |
| August | 30.8° | 20° | 1.9mm | 0.6 | 84 |
| September | 28.1° | 18° | 24.6mm | 3.3 | 89 |
| October | 25.2° | 15.2° | 75mm | 7.2 | 86 |
| November | 20.1° | 10.5° | 86.3mm | 8.4 | 83 |
| December | 17.3° | 8° | 89.4mm | 9.4 | 73 |
January in El Puerto de Santa María averages a daily high of 16.4°C with nights around 6.8°C. Expect roughly 8.7 wet days totalling 73.4mm. Generally workable, with some weather to plan around.
February in El Puerto de Santa María averages a daily high of 17.7°C with nights around 7.6°C. Expect roughly 6.3 wet days totalling 47.9mm. Comfortable conditions for being outdoors all day.
March in El Puerto de Santa María averages a daily high of 19.8°C with nights around 9.7°C. Expect roughly 8.3 wet days totalling 62.4mm. Comfortable conditions for being outdoors all day.
April in El Puerto de Santa María averages a daily high of 21.9°C with nights around 11.8°C. Expect roughly 6.7 wet days totalling 44.1mm. Comfortable conditions for being outdoors all day.
May in El Puerto de Santa María averages a daily high of 25°C with nights around 14.5°C. Expect roughly 3.7 wet days totalling 27.6mm. Comfortable conditions for being outdoors all day.
June in El Puerto de Santa María averages a daily high of 28.1°C with nights around 17.7°C. Rain is rare — about 1.1 wet days and 3.8mm across the month. Comfortable conditions for being outdoors all day.
July in El Puerto de Santa María averages a daily high of 30.5°C with nights around 19.6°C. Rain is rare — about 0.3 wet days and 0.5mm across the month. Comfortable conditions for being outdoors all day.
August in El Puerto de Santa María averages a daily high of 30.8°C with nights around 20°C. Rain is rare — about 0.6 wet days and 1.9mm across the month. Comfortable conditions for being outdoors all day.
September in El Puerto de Santa María averages a daily high of 28.1°C with nights around 18°C. Expect roughly 3.3 wet days totalling 24.6mm. Comfortable conditions for being outdoors all day.
October in El Puerto de Santa María averages a daily high of 25.2°C with nights around 15.2°C. Expect roughly 7.2 wet days totalling 75mm. Comfortable conditions for being outdoors all day.
November in El Puerto de Santa María averages a daily high of 20.1°C with nights around 10.5°C. Expect roughly 8.4 wet days totalling 86.3mm. Comfortable conditions for being outdoors all day.
December in El Puerto de Santa María averages a daily high of 17.3°C with nights around 8°C. Expect roughly 9.4 wet days totalling 89.4mm. 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. El Puerto de Santa María peaks at 93.
Based on 30 years of records, April–July scores highest for comfort in El Puerto de Santa María, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 30.8°C.
December is the wettest, averaging 89.4mm of rain across roughly 9.4 wet days.
January is the coolest month, with average daily highs around 16.4°C.