Lanzarote in September: weather, sea and trip planning

Daytime high: 24.6 C
Night low: 21.5 C
Sea temperature: 22.9 C
Days with rain: 0 of the month

September keeps much of August's warmth while the sea reaches its highest monthly average, 22.9°C. Daytime highs average 24.6°C, nights 21.5°C and sunshine 7.7 hours a day. With 0 days with rain on average, it suits a beach-led holiday more readily than October, though those averages cannot promise a completely dry stay.

Weather and sea

Average daytime highs of 24.6°C are just below August's 24.7°C and above October's 23.4°C. Nights remain at August's 21.5°C before falling to 20.5°C in October. The sea moves differently: September's 22.9°C is warmer than August's 22.3°C and October's 22.6°C, making this the strongest month in the annual averages for water temperature. Sunshine averages 7.7 hours daily, down from 8.6 in August but ahead of October's 6.3. September and August both average 0 days with rain, compared with 2 in October. That rounded monthly figure is not a dry-weather guarantee. The balance favours time by the water, but the sea temperature alone says nothing about waves or swimming conditions at a particular beach.

Who September suits

September suits travellers who want the beach to be the main purpose of their stay, with sightseeing fitted around it. Playas de Papagayo, Playa Dorada and Playa Grande are options to consider; a warm monthly sea average is a reason to plan swimming, not a promise about conditions on arrival. A day at Timanfaya National Park or a visit to Fundación César Manrique can give the trip a different focus without abandoning a beach-led plan. This is less suitable for someone seeking the cooler daytime averages of late autumn for a sightseeing-heavy holiday. It also does not suit expectations of uninterrupted sunshine: September has fewer average sunshine hours than August, despite almost matching its daytime high.

August, September and October compared

Month	Day	Night	Sea	Rain days	Sunshine
August	24.7 C	21.5 C	22.3 C	0	8.6 h
September	24.6 C	21.5 C	22.9 C	0	7.7 h
October	23.4 C	20.5 C	22.6 C	2	6.3 h

Questions about September

Is September better than October for swimming in Lanzarote?

September has a slightly warmer average sea than October, at 22.9°C compared with 22.6°C. It also has higher daytime temperatures and more sunshine, so it is the stronger choice if time in and beside the water is your priority. Neither monthly average establishes safe swimming conditions, and personal comfort in the water varies.

Does it rain in Lanzarote in September?

Rain is still possible, although September averages 0 days with rain. August has the same average, while October rises to 2 days. This makes September a reasonable choice for a beach-focused plan, but the monthly figure should not be read as a guarantee that every day of your stay will be dry.