Balearic Islands

Sant Antoni de Portmany, Spain Climate

1991-2020 means of the daily record at Ibiza/Escodola (GHCN SPE00119855), 14 km from Sant Antoni de Portmany

The warmest month is August, with an average high of 30°C; the coldest is January, with an average low of 8°C. A normal year brings 436 mm of precipitation.

Temperature through the year

The normal daily high and low and the record for every date at Ibiza/Escodola, since 1944. The line marks today.

Normal daily high and low temperature at Sant Antoni de Portmany through the year, in °C, with the record for each date.-10010203040JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Record high
  • Record low

Normals for Oct 1

Normal high
26°C
Normal low
19°C
Record high
30°Cin 1990
Record low
13°Cin 2022
Chance of a wet day
26%
Daylight
11 h 47 min

Month by month

Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.

MonthAvg highAvg lowRecord highRecord lowPrecipitationWet days
January16°C8°C25°C (2021)-1°C (2005)43 mm9.3
February16°C8°C24°C (2000)-2°C (1965)33 mm5.7
March18°C9°C27°C (2023)1°C (1965)23 mm6.2
April20°C12°C28°C (1992)3°C (2022)29 mm6.0
May23°C15°C31°C (2015)4°C (1973)24 mm6.2
June27°C18°C37°C (2003)10°C (1984)8 mm3.0
July30°C22°C37°C (2000)14°C (1978)3 mm0.0
August30°C22°C37°C (2018)11°C (1969)19 mm3.1
September28°C20°C38°C (2016)11°C (1972)67 mm9.0
October24°C16°C32°C (2014)7°C (2012)63 mm9.3
November19°C12°C28°C (2013)1°C (1965)67 mm9.0
December17°C9°C24°C (2010)1°C (2010)58 mm9.3
Year22°C14°C436 mm76

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.

436 mm in a normal year, most in September.

Chance of a wet day

The chance of at least 1 mm of precipitation in the reanalysis on each date at Sant Antoni de Portmany, in percent.010203040JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Sant Antoni de Portmany.

The muggiest month is August, when 91 percent of days are muggy or worse, with a mean dew point of 18°C or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January9°C76%96%4%0%0%0%0%
February9°C76%97%3%0%0%0%0%
March10°C78%90%10%0%0%0%0%
April12°C77%66%34%1%0%0%0%
May14°C77%22%45%31%2%0%0%
June18°C76%3%14%41%38%4%0%
July20°C74%0%2%13%51%33%1%
August21°C73%0%1%8%37%52%2%
September19°C73%1%10%27%47%14%0%
October16°C75%12%27%37%23%2%0%
November12°C74%53%33%13%0%0%0%
December10°C76%84%16%0%0%0%0%

Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is July, with the sky 30 percent covered on average; the cloudiest is November, at 60 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is November, averaging 21.2 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 20, with 14 h 55 min of daylight; the shortest is Dec 17, with 9 h 26 min.

Hours of daylight at Sant Antoni de Portmany through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

Month pages

The weather in Sant Antoni de Portmany in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

A record is the highest or lowest value on the date in every year the station has reported, back to 1944. It rests on one station, so a neighbor a few miles away can hold different ones.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Records: NOAA GHCN-Daily, station SPE00119855, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.