Lanzarote stays warm through the week but turns markedly more changeable, with the AEMET forecast holding daytime highs between 28°C and 31°C and, unusually for August, a real chance of rain by Friday and Saturday.
The first half of the week is the dry, brighter spell, before thickening cloud brings showers to the weekend. The wind is light for most of the week, a gentle northerly rarely above 25 km/h.
Monday 17 August starts the run at 29°C with cloud clearing through the afternoon and a northerly around 25 km/h. Tuesday eases to 28°C under broken cloud with the wind dropping right off to 15 km/h, and Wednesday is the calmest and clearest day of the week, 31°C with light winds of 10 to 15 km/h. Thursday holds at 31°C with more cloud drifting in.
Overnight lows sit at 22°C to 23°C all week, so there is no real cooling off after dark. Evenings stay shirt sleeve warm and mornings start mild.
Lanzarote weather forecast
Lanzarote weather forecast
17 - 23 August 2026
Source: AEMET (Spanish State Meteorological Agency)
Day
Low
High
Conditions
UV
Rain
Monday
17 August
22°C
29°C
9
0%
Tuesday
18 August
22°C
28°C
9
0%
Wednesday
19 August · Clearest
23°C
31°C
9
0%
Thursday
20 August
23°C
31°C
9
5%
Friday
21 August · Wettest
23°C
30°C
9
55%
Saturday
22 August
22°C
30°C
65%
Sunday
23 August
22°C
29°C
20%
UV 8 to 10 very high
Rain likely
Cloud
UV 9 very high
Chance of rain Friday and Saturday
The weekend is where this week departs from the usual August script. Friday brings thickening cloud and a 55% chance of light rain, and Saturday raises that to 65% with showers likely at times, before Sunday clears back to cloudy spells and a 20% chance. None of it amounts to much by northern European standards, likely brief and light rather than washout rain, but it is worth knowing about on an island where a drop rarely falls in August. AEMET has no weather warnings in place for the island.
High UV Levels
The UV index reads 9 through to Friday, near the top of the very high band, and the cloud makes little difference to it. Plenty of ultraviolet gets through a hazy or lightly clouded sky, so the burn risk is much the same whether the sun is out or hidden, which is exactly how people get caught out on an overcast day. Skin starts to burn in around twenty minutes at this level.
Factor 30 or higher before you leave, another coat around lunchtime, and a hat for anything that involves walking. Get into that routine on day one and the burn never happens.
The Lanzarote Weather this week
Monday through Thursday is the drier, brighter half of the week, and Wednesday is the pick of it, clear skies, 31°C and light winds. This is the stretch for the beach, the boat trips and the volcanic walks. The wind stays gentle throughout, a light northerly that rarely troubles 25 km/h, so the exposed north and west coasts are calmer than they have been of late, though Famara will still carry some swell.
From Friday the cloud builds and the showers become possible, so the back end of the week is the time to keep something indoors in reserve. The temperature barely moves, holding at 29°C to 30°C right through the weekend, so it stays warm even under cloud.
Coast Versus Inland
With the wind light all week, the usual north-south split matters less than it does in a strong northerly, and most of the coast is comfortable. Playa Blanca, Puerto del Carmen and the Papagayo beaches stay the most sheltered, while Costa Teguise and Famara catch what breeze there is. The sea is at its August warmest now, so a midday swim is a pleasure rather than a shock.
Inland it is hotter and stiller. Timanfaya, La Geria and the villages around Tinajo and Yaiza get almost none of the coastal air, and the black volcanic ground holds the heat all afternoon. At 31°C the lava fields are hard going by late morning, so the volcanic walks want doing early, and ideally in the drier first half of the week before the weekend cloud and showers arrive.
Take Care in High Temperatures
Nothing this week is extreme by Canarian standards, but a run of warm days and warm nights adds up, particularly for anyone who has just arrived. Factor 30 minimum, topped up every couple of hours and every time you come out of the water. Wide hat, proper sunglasses, light and loose clothing.
Two to three litres of water a day for most adults, more if you are walking or cycling. Drinks by the pool are part of the holiday, but alcohol works against you in this heat, so keep water alongside. Children, older visitors and anyone with a heart or respiratory condition should stay out of the direct sun between 11am and 4pm, and it is worth keeping an eye on the group for headaches, dizziness or someone going quiet, which is usually the first sign.
Beaches, Boats and Early Starts
With the wind light, the sea is kinder this week than last, so the crossing to La Graciosa from Órzola and the smaller boat trips should run without much trouble in the first half. If you have a catamaran cruise or a diving session booked for the weekend, keep half an eye on the forecast, since the building cloud and showers from Friday could affect conditions.
The drier early week is the time for anything on the water, snorkelling and diving, and walkers and cyclists should still be out early, before eight if possible, while the air is cool. AEMET updates the forecast daily, so if your plans depend on the weekend rain it is worth a look the night before. Otherwise this is a warm, mostly dry August week with only the weekend showers to plan around.
Finding a space in the centre of Playa Blanca has just got a little easier. Yaiza council has opened 65 new free parking spaces along Avenida Papagayo, on the stretch between the El Carmen church and Maciot street, in one of the busiest parts of the resort.
Lanzarote stays warm through the week but turns markedly more changeable, with the AEMET forecast holding daytime highs between 28°C and 31°C and, unusually for August, a real chance of rain by Friday and Saturday.
Tonight's partial solar eclipse reaches nearly 74 per cent coverage over Lanzarote. The eclipse begins at 6.56pm and ends at 7.51pm so you will want an open view towards the western horizon with nothing blocking the low sun.
The busy sea crossing between Playa Blanca and Corralejo has a new boat working it. Líneas Romero put its latest ferry, the Juan Jorge R., into service on 31 July 2026, replacing an older vessel on the short hop between Lanzarote and Fuerteventura. The company describes the new boat as part of a steady modernisation of its fleet, aimed at…
Determined not to miss the first family holiday abroad, a British couple and their two young children abandoned their taxi and walked down the M6 with their suitcases when a crash shut the motorway on the way to their Birmingham flight to Lanzarote.
