Spain · 1991–2020

Best time to visit
Portugalete

For Portugalete, June has the most comfortable weather in our climate comparison. Typical daytime highs are 23.5°C, nights average 13.8°C, and rainfall totals about 62 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthJune
Typical daytime high23.5°C
Typical night-time low13.8°C
June rainfall62 mm
Overall comfort

June

Other strong months: July and September

88/100 weather score
Beach weather

August

Other strong months: July and June

69/100 weather score
Outdoor sightseeing

May

Other strong months: June and April

78/100 weather score

Make the answer personal

Choose the weather
that suits you.

Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.

4 months fit your choices for Portugalete

June23.5°C day · 62 mm rain · 7.6 wet days
July25.4°C day · 55 mm rain · 7.9 wet days
August26.3°C day · 57 mm rain · 7.9 wet days
September24.5°C day · 81 mm rain · 9.6 wet days

January has the lowest comfort score at 24 out of 100, compared with June at 88. The main reason is that days reach only 13.5°C, 10° below the 24°C the score treats as ideal.

Quick answers

Planning a trip to Portugalete?

These answers come from the same measured monthly climate record shown on this page.

When is the best time to visit Portugalete?

June is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.5°C and 62 mm of rain.

What is the hottest month in Portugalete?

August is hottest in this record, with a typical daytime high of 26.3°C and a night-time low of 16.1°C.

Which month has the least rain?

July has the lowest monthly rainfall total at 55 mm.

Is this a weather forecast?

No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.

Month by month

See how the weather
changes through the year.

The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.

Jan
2413.5° / 5.3°
Feb
3114.2° / 5.1°
Mar
4416.6° / 6.7°
Apr
5018.1° / 8.1°
May
6921° / 11°
Jun
8823.5° / 13.8°
Jul
8725.4° / 15.8°
Aug
8326.3° / 16.1°
Sep
8424.5° / 13.9°
Oct
6521.4° / 11.7°
Nov
3216.5° / 8.2°
Dec
2814.1° / 6.1°
Monthly climate evidence for Portugalete — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 10 km away
MonthDayNightRainWet daysSeaDaylightComfortCoverage
January13.5°C5.3°C138 mm13.613.0°C9 h 1824Strong coverage
February14.2°C5.1°C114 mm11.812.5°C10 h 2631Strong coverage
March16.6°C6.7°C103 mm11.112.6°C11 h 4744Strong coverage
April18.1°C8.1°C102 mm12.613.4°C13 h 2150Strong coverage
May21°C11°C81 mm11.115.2°C14 h 3969Strong coverage
June23.5°C13.8°C62 mm7.618.0°C15 h 2388Strong coverage
July25.4°C15.8°C55 mm7.920.5°C15 h 0687Strong coverage
August26.3°C16.1°C57 mm7.921.7°C13 h 5783Strong coverage
September24.5°C13.9°C81 mm9.620.4°C12 h 2784Strong coverage
October21.4°C11.7°C122 mm11.818.2°C10 h 5765Strong coverage
November16.5°C8.2°C184 mm14.815.8°C9 h 3832Strong coverage
December14.1°C6.1°C135 mm13.214.1°C8 h 5928Strong coverage

What has changed

Recent daytime highs are
1.5°C warmer in Portugalete.

Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.

Jan
+0.9
Feb
+0.9
Mar
+1.3
Apr
+2.5
May
+1.6
Jun
+1.7
Jul
+1.0
Aug
+1.9
Sep
+1.1
Oct
+1.7
Nov
+1.3
Dec
+1.9
June daytime highs, 2011–2025. Last recorded: 26.9°C.
Records at BILBAO AEROPUERTO, 1947–2026
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January25.1°C1 Jan 2023-7.6°C15 Jan 196395 mm16 Jan 2023327 mm1978 · driest 6 mm in 199378
February27.1°C24 Feb 2026-8.6°C3 Feb 196380 mm27 Feb 2016345 mm2016 · driest 15 mm in 194979
March31.0°C17 Mar 1947-5.0°C4 Mar 194984 mm24 Mar 1991215 mm2008 · driest 4 mm in 196180
April33.1°C28 Apr 2010-1.2°C22 Apr 199192 mm3 Apr 1989260 mm1989 · driest 10 mm in 198280
May36.4°C22 May 20260.4°C1 May 196093 mm31 May 2008215 mm1977 · driest 14 mm in 195280
June42.7°C24 Jun 20263.6°C2 Jun 1975108 mm16 Jun 2010240 mm2010 · driest 5 mm in 197680
July42.0°C26 Jul 19476.6°C8 Jul 195468 mm16 Jul 1997193 mm1977 · driest 6 mm in 198479
August44.0°C23 Aug 20236.8°C14 Aug 194992 mm27 Aug 1983374 mm1983 · driest 6 mm in 195579
September41.7°C7 Sep 19883.8°C28 Sep 1972173 mm26 Sep 1953279 mm1959 · driest 0 mm in 198579
October36.7°C2 Oct 20230.6°C31 Oct 1949117 mm14 Oct 1953432 mm1992 · driest 4 mm in 196979
November27.7°C8 Nov 2015-6.2°C23 Nov 198885 mm21 Nov 2006371 mm2019 · driest 10 mm in 198879
December25.2°C31 Dec 2021-7.4°C25 Dec 196268 mm19 Dec 1967464 mm1950 · driest 11 mm in 201578
Typical days per month at BILBAO AEROPUERTO, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)
January0035
February<1024
March10<13
April2<1<13
May7103
June9302
July16302
August19502
September12402
October7<104
November<10<16
December0024

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 93); on 2011–2025 it is June (95). Both are scored the same way, from the same station — only the climate underneath changed.

How often different weather occurs at BILBAO AEROPUERTO, based on its daily record
MonthDry days reaching 20°CWet daysDays with heavy rainWeeks with 3+ wet daysTypical high by year
January3%45%16%60%11.2–15.4°C
February9%42%14%57%10.8–17.2°C
March18%38%10%50%14.0–18.6°C
April21%42%13%57%15.1–20.1°C
May36%38%9%51%17.8–22.6°C
June59%28%7%32%20.7–25.3°C
July73%25%5%24%23.1–27.0°C
August72%27%7%31%23.7–27.6°C
September64%32%9%42%22.2–26.6°C
October48%35%13%47%18.9–24.2°C
November16%46%20%61%14.0–18.8°C
December4%44%16%58%11.2–16.2°C

A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.

1948Each stripe is one year’s mean temperature against the 75-year average. Warmest: 2022. Coolest: 1956.2025

The evidence behind this page

Where these figures
come from.

Place identity
GeoNames 3113082
NOAA station
SPE00120611 · BILBAO AEROPUERTO
Station distance
9.6 km from the place centre
Climate period
1991–2020
Minimum month coverage
29 usable years
Daylight
Calculated from latitude 43.32°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature
NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 10 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

Next step

Choose your month.
Then plan the details.

The weather comparison for Portugalete is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.

How travel partnerships will work

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Same climate evidence,
different places.

These places read the same station, so their climate numbers are identical. Their setting, population and distance from BILBAO AEROPUERTO are not.