Guide · Best time

What time is the best for stargazing on Teide?

What time is the best for stargazing depends on three clocks: the season, the Moon and the hour of the night. Here is how each one works on Teide, with the mountain's own records.

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Editorial team, tenerifestargazingtour.comUpdated October 23, 20266-minute read19 sources

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Quick answer

01All year: Turismo de Tenerife says the stars can be observed well practically all year round.¹
02Clearest months: June to August, with 23.8 to 27.0 cloudless days a month at Izaña.²
03Longest nights: Mid-December: about 10.4 hours of daylight, by our calculation.³
04The Moon: Avoid full Moon, which rises at sunset and lights the sky all night.⁴
05Hour of the night: After your eyes adapt: 15 to 30 minutes without bright light.⁵

Three clocks decide your night

Ask what time is the best for stargazing and you get three answers at once. The season decides how often the sky is clear and how long the night lasts. The Moon decides how dark that night is. And the hour decides what is above the horizon and whether your eyes are ready to see it.

The good news first. Turismo de Tenerife says that, thanks to the climate, the transparency of the sky and the hours of useful observation, the stars can be observed well practically all year round.¹ There is no closed season for the sky over Teide, only better and worse odds.

The odds come from the records of AEMET, Spain's weather agency, at its Izaña station, 2,369 m up beside the Teide Observatory.⁶ Its 1981 to 2010 normals count the cloudless days of every month, which is the closest public measure of how often the sky above the park is clear.⁷ ² Read them as a guide to your chances, not a promise: a cloudless afternoon can still be followed by a misty night, and a gray day can clear completely after sunset as the air cools.

One lunar month

How the Moon moves through your trip

New Moon

Dark all night

The Moon is up during the day with the Sun.⁸
First quarter

Bright evening

It sets around the middle of the night.⁹
Full Moon

Bright all night

It rises at sunset and sets at sunrise.⁴
Third quarter

Dark evening

It rises around the middle of the night.¹⁰
Next new Moon

Dark again

The cycle repeats about every 29.5 days.¹¹

Month by month: clear days at Izaña

Summer is the clear season on the mountain. Izaña averages 23.8 cloudless days in June, 27.0 in July and 24.2 in August.² Spring builds towards it, with 13.6 in April and 16.4 in May, and September still manages 16.5.² ¹²

Late autumn and winter are cloudier. October averages 11.7 cloudless days, November 9.4 and December 10.8.¹² February and March come in at 12.7 and 13.4, and AEMET gives no cloudless-day figure for January.¹³ Rain at Izaña adds up to 392 mm in an average year, most of it outside summer.¹⁴

These are daytime counts from a weather station, not a forecast of your particular night, but they show the pattern clearly. If your dates are flexible, a summer week gives you the best chance of several clear evenings in a row. If they are fixed, book early in your stay so a cloudy night still leaves time to try again.

Month by month

Daylight and rain at Izaña

Hours without sunDays with precipitationSeason

The bars are hours without sun at mid-month, from our own daylight calculation; the line marks how many days bring 1 mm or more of rain or snow, AEMET station Izaña, 1981 to 2010.³

Seasons compared

The stargazing year on Teide

Season	Cloudless days	In the sky	Cold
Summer	23.8 to 27.0 a month	Milky Way, Summer Triangle	July low 14 °C
Autumn	9.4 to 16.5 a month	Long, cooler evenings	November low 4.5 °C
Winter	10.8 to 12.7 a month	Geminids in December	January low 1.1 °C
Spring	13.4 to 16.4 a month	Lengthening dark hours	April low 3.5 °C

Cloudless days and lows are AEMET's 1981 to 2010 normals for Izaña at 2,369 m; January has no cloudless-day figure.¹³ ² ¹² ³ ¹⁵ ¹⁶

Three kinds of night

Summer, winter or a Moon night

Best odds

A summer night

Clearest season

Cloudless days: Up to 27.0
Night length: Shortest
Highlight: Milky Way

Check dates

Dress warm

A winter night

Longest darkness

Cloudless days: Around 11
Night length: Longest
Highlight: Geminids

Check dates

Moon views

A full Moon night

Any month

Faint stars: Washed out
Telescope: Lunar craters
Darkness: Lowest

Check dates

Decision helper

Which night should you book?

Match your dates to what you want to see

I want the best chance of a clear sky I want the Milky Way I want to see shooting stars I only have one night I love the Moon

July

Izaña averages 27.0 cloudless days in July.²

A summer night, no Moon

Summer shows the Milky Way at its fullest.¹⁵

August or December

The Perseids and the Geminids are the best-known showers.¹⁶

Book it early

Free cancellation up to 24 hours before keeps it movable.

Near full Moon

It rises at sunset and stays up all night.⁴

These factors mean that the stars can be observed optimally practically all year round.

Turismo de Tenerife (webtenerife.co.uk, official tourism site)Source 1

Long winter nights against short summer ones

The trade-off is darkness. By our own calculation the sun is above the horizon at Izaña for about 13.9 hours in mid-June and about 10.4 hours in mid-December.³ A winter night is several hours longer, and the sky is fully dark much earlier in the evening.

That matters for tours that start at sunset. A December evening reaches real darkness early, so the guided session fits comfortably before midnight. In June the sunset is late, and the full dark sky arrives late too, which pushes the end of the evening deep into the night.

Winter also brings cold. The average low at Izaña is 1.1 °C in January, and AEMET counts 12.3 frost days that month.³ ¹³ The IAC suspends its own visits to the Teide Observatory from December to March because of adverse weather, a reminder that winter on the high mountain is real winter.¹⁷

Checklist

Choosing your stargazing night

Check

The Moon's phase on your dates
The sky in the days before you go
Your free-cancellation deadline

Plan

Book an early night of the trip
Not on the evening you land
Winter: dress for frost

Video

Under the sky of Tenerife, a night-sky timelapse

No video data loads before you press play.

The Moon: the clock that matters most

The Moon goes through its whole cycle of phases about every 29.5 days.¹¹ Around full Moon it rises at sunset and sets at sunrise, so it lights the sky all night and drowns the faint stars and the Milky Way.⁴ It is a wonderful sight in a telescope, but not the night for deep-sky viewing.

The phases either side of full Moon split the night. A first quarter Moon rises around midday and sets around the middle of the night, so the evening is bright and the hours after it darker.⁹ A third quarter Moon rises around the middle of the night, which leaves the evening, when tours run, dark.¹⁰

Around new Moon the Moon is up during the day with the Sun, so the whole night is dark.⁸ Turismo de Tenerife's advice is simply to avoid the Moon, especially when it is full.¹⁸ One telescope operator also asks guests to keep the Moon's phase in mind when booking. Check a phase calendar for your dates before you choose a night.

What the Teide night sky shows in each season

The Teide night sky changes through the year. In summer the Milky Way is at its fullest, and the Summer Triangle of Vega, Altair and Deneb stands high overhead.¹⁵ Summer is also when most nights are clear, so it is the season for Milky Way photographs.²

Meteor showers add their own dates. The Perseids in August and the Geminids in December are the best-known showers seen from Tenerife.¹⁶ A shooting star is never guaranteed, but on those nights the odds of seeing several in an evening are far better than usual.

Winter skies are just as rich, with different constellations and the longest dark hours of the year. The telescope views do not depend on the season as much as the naked-eye sky does: planets, clusters and galaxies appear in different months, and a good guide shows whatever is best placed on your night. That is one of the quiet advantages of a guided evening: you do not need to know in advance what will be up, because the person with the laser pointer does, and the telescope is aimed at the best target of the hour rather than at a list you prepared at home.

What time of night to look up

Most guided sessions follow the sunset rather than the clock. The session near the Ermita de las Nieves begins 40 minutes after sunset, and the large-telescope session sets its start by the sunset too, so it moves with the seasons.

The evening booked on this site watches the sunset first and then spends 2.25 hours stargazing at a second viewpoint. Its exact pickup or meeting time is sent by WhatsApp on the day, so you do not need to work out sunset times yourself.

On your own, give yourself time to adapt. The human eye needs 15 to 30 minutes to adjust to darkness, and a bright light resets it for another 15 minutes.⁵ Arrive before the sky is fully dark, set up, then let the stars come to you instead of hunting for them with a torch. The sky also turns as the night goes on, so stars that rise in the east after dinner stand high by midnight. If you are on your own and the evening is clear, staying an extra hour often shows you a different sky from the one you arrived under.

How to book around the weather

The park's climate is dry, with strong contrasts between day and night and often strong winds.¹⁹ Clouds and wind can change within hours, so the most useful thing you can do is keep a spare evening. Book for one of the first nights of your trip rather than the last, then move it if the sky looks poor.

Free cancellation helps. On the evening booked here, cancelling costs nothing until 24 hours ahead, and paying can wait. If wind, cloud or cold make its upper viewpoint unsuitable on the night, the guides keep the group at the lower one rather than cancel the evening.

Avoid booking the night you arrive. The operator recommends against the same night if your plane lands in the afternoon, because the time arrives by WhatsApp and pickup follows the sunset. A rested first full day, with the stargazing that evening, is the calmer plan. It also leaves you the rest of the week as a buffer if the first night turns cloudy, which on a mountain is always a possibility, whatever the month.

Your night on Teide