Weather in La Gomera in September

How September compares

September is the 2nd warmest month of the year in La Gomera and ranks 75th of 134 destinations we compare for September - see where else is hot in September. Within Spain it is 34th of 87 (Spain in September). Against London's average high of 18.6°C in September, La Gomera is 7.7°C warmer by day and 12.2°C warmer at night.

Daytime and night-time in September

The typical September day in La Gomera peaks at 26.3°C, but that is an average: the warmest 10% of days reach 27.8°C or more. About 85% of days top 25°C and 1 in 42 pass 30°C. Nights average 23.4°C; one night in ten drops to 21.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest September day here reached 34.3°C (2020-09-16) and the coldest night 17.8°C (2019-09-21).

Rain in September

Dry (3 rainy days or fewer): about 1 days with 1 mm or more, 5 mm in total. Year to year it varies a lot - the wettest September was 2010 with 43 mm, the driest 2003 with 0 mm. Humidity averages 76%.

Sea temperature in September

The sea averages 23.7°C - warm enough to swim (22°c+). Depending on the year it ranges from 23.0°C to 24.3°C. This is the warmest the sea gets here all year.

Sunshine and daylight

Around 9.2 hours of sunshine a day (estimated from cloud cover), 12.2 hours of daylight: the sun rises about 07:54 and sets about 20:14 local time in mid-September. Average cloud cover is 24%.

Is September a good time to visit La Gomera?

Yes - it is one of the better months: hot days, little rain and long sunny days. The best months for La Gomera on our scoring are July, August, June; months averaging 25°C or more: Jul, Aug, Sep, Oct.

Expect reliable warmth, not constant extreme heat

Days reach 25°C on 85% of occasions, so pack mainly light clothing rather than planning around cool spells. Compared with London's September daytime high of 18.6°C, La Gomera averages 7.7°C warmer: a noticeable change if you are leaving autumn weather behind. Days reaching 30°C are uncommon, but that does not make midday ideal for strenuous activity. With humidity at 76%, the warmth can feel close, and average night lows of 23.4°C mean bedrooms may stay warm too. If you sleep badly in heat, prioritise accommodation with cooling. Keep more energetic plans for earlier or later in the day, and bring a light layer for any cooler evenings.

Good conditions for swimming and outdoor plans

Rain is unlikely to dominate your holiday: September averages about 1 rainy day, making it a sensible month for plans that depend on being outdoors. That is not a guarantee of an entirely dry stay, so leave some flexibility rather than treating every day as fixed. The sea averages 23.7°C, comfortably in swimming territory, with the year-to-year range staying between 23°C and 24°C. This is a strong reason to choose September if swimming matters more to you than avoiding heat. Light clothes and sun protection deserve more packing space than wet-weather gear, though keeping a light waterproof handy is sensible. Use the warm evenings for time outside when midday feels too hot.