San Juan/Castillo weather today
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Thursday, 10 September 2026
Photo: Mentxuwiki · CC BY-SA 4.0 · Commons
Tenerife · San Cristóbal de La Laguna
28°
Sunny
· 26° sea
Morning
Sunny
Afternoon
Sunny
Max temperature
28°C
Water temperature
26°C
Wind
Moderate
Waves
Moderate
Feels like
Pleasantly warm
UV index
8
Very high
Very high UV — SPF 50+, cover up and avoid the sun from 12:00 to 16:00.
Is it sunny at San Juan/Castillo today?
Yes — Sunny this morning at San Juan/Castillo, with around 28°C in the air, a sea temperature of 26°C and a UV index of 8.
San Juan/Castillo sea temperature today
The sea at San Juan/Castillo is 26°C right now, from AEMET's official beach measurements.
3-day forecast
Today
28°
26° sea
UV 8
Tomorrow
26°
26° sea
UV 8
Sa 12
27°
26° sea
UV 8
Sea conditions (open water)
Today
1.28 m
period 7.1 s
25.0°C
Tomorrow
1.4 m
period 7.4 s
25.0°C
Sa 12
1.54 m
period 7.35 s
25.2°C
Open-water model data from ~11.5 km offshore — conditions right at the shore can differ.
Sea data: Open-Meteo.com (CC BY 4.0)
Weather history at San Juan/Castillo — measured daily
Measured over the last 14 days at San Juan/Castillo: the sea averaged 25.9°C, 43% of mornings were sunny, and daytime highs reached up to 28°C.
Air maxSea
Show the daily measurements
| Day |
Air max |
Sea |
UV |
| 10 Sep |
28°C |
26°C |
8 |
| 9 Sep |
27°C |
26°C |
9 |
| 8 Sep |
25°C |
26°C |
9 |
| 7 Sep |
28°C |
26°C |
9 |
| 6 Sep |
26°C |
26°C |
9 |
| 5 Sep |
23°C |
26°C |
9 |
| 4 Sep |
25°C |
26°C |
9 |
| 3 Sep |
26°C |
26°C |
9 |
| 2 Sep |
27°C |
26°C |
9 |
| 1 Sep |
27°C |
26°C |
9 |
| 31 Aug |
28°C |
26°C |
9 |
| 30 Aug |
28°C |
26°C |
9 |
| 29 Aug |
28°C |
25°C |
9 |
| 28 Aug |
27°C |
25°C |
9 |
| 27 Aug |
26°C |
26°C |
9 |
| 26 Aug |
28°C |
26°C |
9 |
| 25 Aug |
27°C |
26°C |
9 |
| 24 Aug |
28°C |
26°C |
9 |
| 23 Aug |
27°C |
26°C |
9 |
| 22 Aug |
27°C |
26°C |
9 |
| 21 Aug |
27°C |
26°C |
9 |
| 20 Aug |
28°C |
26°C |
9 |
| 19 Aug |
28°C |
26°C |
9 |
| 18 Aug |
28°C |
26°C |
9 |
| 17 Aug |
27°C |
25°C |
9 |
| 16 Aug |
27°C |
25°C |
9 |
| 15 Aug |
28°C |
25°C |
9 |
| 14 Aug |
27°C |
25°C |
10 |
| 13 Aug |
28°C |
25°C |
10 |
| 12 Aug |
28°C |
25°C |
10 |
Nearby beaches
All beaches on Tenerife →
Tenerife weather in September: monthly averages
· Sea temperature
· Sunniest island right now
Data source: AEMET © Agencia Estatal de Meteorología · Updated today at 05:51 · checked 19 min ago