AI-generatedOlhão at a glance
- Best time
- Jun – Sep
- Warmest month
- Aug · 27°
- Warmest sea
- Aug · 21.5°
- Sunshine a year
- 3,160 h
- Rain a year
- 415 mm
- Climate
- Mediterranean
- Time zone
- UTC+0 / UTC+1
- Elevation
- 11 m
Climate in Olhão
Olhão has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 27 °C, while January is the coolest at 15 °C. With around 3,160 hours of sunshine a year, Olhão is very sunny; July is the sunniest month with 12.3 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Good
Best time to visit: June – September
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 18°
- Midday, 13:00: about 21°
- Afternoon, 16:00: about 22°
- Evening, 20:00: about 20°
- Night, 23:00: about 19°
07:3818:56
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:22–08:13 · evening 18:21–19:12
- Blue hour
- Morning 07:12–07:22 · evening 19:12–19:22
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Olhão in October?
In October, Olhão is warm: daytime highs average 22 °C, and nights cool down to about 18 °C. The sea averages 20.8 °C – refreshing for a swim. The sun shines for around 8 hours a day. Rain falls on about 6 days, adding up to 59 mm. All in all, October is a good month for a holiday in Olhão.
More details for October
- Daylight
- 11 h 18 min07:38 – 18:56
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 4 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 46 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+1Europe/Lisbon
How the score comes together
- Temperatureweight 35 %48 %
- Seaweight 25 %54 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 20 %83 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
Sea temperature in Olhão
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 19.7 – 21.8 °C
Swimming season: Jul – Oct
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Olhão ranges from 16.0 °C in February to 21.5 °C in August. It is warm enough for a comfortable swim (20 °C and more) from July to October.
From November to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 20.2 and 22.8 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 16.6° | 16.0° | 17.2° | cold |
| FebruaryFeb | 16.0° | 15.3° | 16.5° | cold |
| MarchMar | 16.0° | 15.5° | 16.6° | cold |
| AprilApr | 16.8° | 16.1° | 17.5° | cold |
| MayMay | 18.1° | 17.3° | 19.1° | fresh |
| JuneJun | 19.9° | 18.7° | 21.4° | fresh |
| JulyJul | 21.0° | 19.8° | 22.1° | refreshing |
| AugustAug | 21.5° | 20.2° | 22.8° | refreshing |
| SeptemberSep | 21.3° | 20.2° | 22.5° | refreshing |
| OctoberOct | 20.8° | 19.7° | 21.8° | refreshing |
| NovemberNov | 19.1° | 18.4° | 19.8° | fresh |
| DecemberDec | 17.6° | 16.7° | 18.5° | fresh |
Sunshine hours in Olhão
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.5 of 11.3 hours of daylight in Olhão, 66 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Olhão
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 10).
Minutes until sunburn in October
- Very fair skin
- about 30 min
- Fair skin
- about 35 min
- Light brown skin
- about 50 min
- Olive skin
- about 65 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Olhão: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Olhão has about 6 rainy days with 59 mm of rain in total.
Wind and clouds in Olhão
How breezy and how cloudy Olhão is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Olhão typically peaks at 16 km/h during the day: Beaufort 3, light breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 46 % of the sky over Olhão: variable cloud, with about 7.5 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Olhão
How often the day gets hot in Olhão (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Olhão has about 0 hot days, with an average daytime high of 22 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Olhão
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
PleasantOctober: nights around 18°. Ideal for sleeping, often with the window open. Muggy on about 4 days (dew point 18 °C or more).
The coolest nights are in January (11°), the warmest in August (21°). Tropical nights of 20 °C and more are the rule from July to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from May to June and from September to October.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 26 | 15° | 11° | 16.6° | 5.9 h | 6 | 43 |
| FebruaryFeb | 31 | 16° | 11° | 16.0° | 6.8 h | 5 | 39 |
| MarchMar | 31 | 17° | 12° | 16.0° | 7.8 h | 7 | 53 |
| AprilApr | 36 | 19° | 14° | 16.8° | 8.9 h | 6 | 44 |
| MayMay | 55 | 21° | 16° | 18.1° | 10.3 h | 5 | 29 |
| JuneJun | 80 | 24° | 18° | 19.9° | 11.7 h | 1 | 5 |
| JulyJul | 89 | 26° | 20° | 21.0° | 12.3 h | 0 | 1 |
| AugustAug | 91 | 27° | 21° | 21.5° | 11.5 h | 0 | 2 |
| SeptemberSep | 87 | 24° | 19° | 21.3° | 9.4 h | 3 | 24 |
| OctoberOct | 62 | 22° | 18° | 20.8° | 7.5 h | 6 | 59 |
| NovemberNov | 35 | 18° | 14° | 19.1° | 6.3 h | 7 | 53 |
| DecemberDec | 26 | 16° | 12° | 17.6° | 5.4 h | 7 | 64 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
37.03° N, 7.84° W · 11 m · Europe/Lisbon
Best time to visit Olhão
The best time to visit Olhão is from June to September. For a beach holiday with the sea above 21 °C, go from July to September. For sightseeing, day trips and hiking, the weather is pleasant all year round. The wettest month is December with 64 mm of precipitation.
Olhão through the seasons
How the weather changes over the seasons, with averages for each.
Olhão in spring
Mar – May
Fair
- 17–21 °C by day
- Sea 17 °C
- 9 h of sun a day
- 19 rainy days in all
Olhão in summer
Jun – Aug
Excellent
- 24–27 °C by day
- Sea 21 °C
- 12 h of sun a day
- 2 rainy days in all
Olhão in autumn
Sep – Nov
Good
- 18–24 °C by day
- Sea 20 °C
- 8 h of sun a day
- 16 rainy days in all
Olhão in winter
Dec – Feb
Poor
- 15–16 °C by day
- Sea 17 °C
- 6 h of sun a day
- 18 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Olhão for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Compare two months in Olhão
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Olhão: score 91 against 62. In August, days are 5 °C warmer than in October. The sea is 1 °C warmer in August. August has 6 fewer rainy days. The sun shines 4 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Weather score | 62 | 91better |
| Day high | 22° | 27° |
| Night low | 18° | 21° |
| Sea | 20.8° | 21.5° |
| Sunshine | 7.5 h | 11.5 hbetter |
| Rainy days | 6 | 0better |
| Rainfall | 59 mm | 2 mmbetter |
| Muggy days | 4better | 6 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
Jul – Sep
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
All year
15–28 °C and not too much rain
Olhão month by month
The typical weather for every month at a glance.
26January15° · Sea 17° · 6 h
In January, Olhão is cool: daytime highs average 15 °C, and nights cool down to about 11 °C. The sea averages 16.6 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain falls on about 6 days, adding up to 43 mm. All in all, January is not an ideal month for a holiday in Olhão.
Olhão in January31February16° · Sea 16° · 7 h
In February, Olhão is cool: daytime highs average 16 °C, and nights cool down to about 11 °C. The sea averages 16.0 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain falls on about 5 days, adding up to 39 mm. All in all, February is not an ideal month for a holiday in Olhão.
Olhão in February31March17° · Sea 16° · 8 h
In March, Olhão is mild: daytime highs average 17 °C, and nights cool down to about 12 °C. The sea averages 16.0 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 53 mm. All in all, March is not an ideal month for a holiday in Olhão.
Olhão in March36April19° · Sea 17° · 9 h
In April, Olhão is mild: daytime highs average 19 °C, and nights cool down to about 14 °C. The sea averages 16.8 °C – swimming is only for the hardy. The sun shines for around 9 hours a day. Rain falls on about 6 days, adding up to 44 mm. All in all, April is not an ideal month for a holiday in Olhão.
Olhão in April55May21° · Sea 18° · 10 h
In May, Olhão is warm: daytime highs average 21 °C, and nights cool down to about 16 °C. The sea averages 18.1 °C – bracing, so a wetsuit helps for longer swims. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 5 days, adding up to 29 mm. All in all, May is a so-so month for a holiday in Olhão.
Olhão in May80June24° · Sea 20° · 12 h
In June, Olhão is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 19.9 °C – bracing, so a wetsuit helps for longer swims. With around 12 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, June is an excellent month for a holiday in Olhão.
Olhão in June89July26° · Sea 21° · 12 h
In July, Olhão is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. The sea averages 21.0 °C – refreshing for a swim. With around 12 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, July is an excellent month for a holiday in Olhão.
Olhão in July91August27° · Sea 22° · 12 h
In August, Olhão is warm: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 21.5 °C – refreshing for a swim. With around 12 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, August is an excellent month for a holiday in Olhão.
Olhão in August87September24° · Sea 21° · 9 h
In September, Olhão is warm: daytime highs average 24 °C, and nights cool down to about 19 °C. The sea averages 21.3 °C – refreshing for a swim. With around 9 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 24 mm in total. All in all, September is an excellent month for a holiday in Olhão.
Olhão in September62October22° · Sea 21° · 8 h
In October, Olhão is warm: daytime highs average 22 °C, and nights cool down to about 18 °C. The sea averages 20.8 °C – refreshing for a swim. The sun shines for around 8 hours a day. Rain falls on about 6 days, adding up to 59 mm. All in all, October is a good month for a holiday in Olhão.
Olhão in October35November18° · Sea 19° · 6 h
In November, Olhão is mild: daytime highs average 18 °C, and nights cool down to about 14 °C. The sea averages 19.1 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain falls on about 7 days, adding up to 53 mm. All in all, November is not an ideal month for a holiday in Olhão.
Olhão in November26December16° · Sea 18° · 5 h
In December, Olhão is mild: daytime highs average 16 °C, and nights cool down to about 12 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain falls on about 7 days, adding up to 64 mm. All in all, December is not an ideal month for a holiday in Olhão.
Olhão in DecemberOlhão compared
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Olhão vs. Faro
In October the holiday weather in Olhão and Faro is about equally good (score 62 vs. 61). During the day it is about as warm in Faro as in Olhão. The sea is about equally warm. Faro gets one hour less sunshine a day.
| in October | Olhão | Faro |
|---|---|---|
| Holiday score | 62 | 61 |
| Daytime high | 22° | 22° |
| Sea | 21° | 21° |
| Sunshine | 8 h | 7 h |
| Rainy days | 6 | 7 |
| Best time | Jun – Sep | Jun – Sep |
Through the year
Portugal in October: the best places
In October, Olhão ranks 12 of 24 destinations in this country.
- Lisbon21°19°80
- 2Amadora21°19°80
- 3Sintra20°80
- 4Fátima21°74
- 5Coimbra22°74
- 6Funchal21°23°74
- 7Porto21°17°69
- 8Guimarães20°68
- 12OlhãoThis page22°21°62
Planning a trip to Olhão
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Olhão in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Olhão has its best school-holiday weather during the summer holidays (score 90) and its weakest during the Christmas holidays (score 26).
- 35
Easter holidays
Mar – Apr
Poor
- 18 °C by day
- Sea 17 °C
- 8.6 h of sun a day
- 7 rainy days a month
Good for: Sightseeing & walks
- 60
May half-term
May – Jun
Good
- 22 °C by day
- Sea 18 °C
- 10.6 h of sun a day
- 4 rainy days a month
Good for: Sightseeing & walks
- 90
Summer holidays
Jul – Aug
ExcellentBest holidays
- 27 °C by day
- Sea 21 °C
- 11.8 h of sun a day
- 0 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 62
October half-term
Oct
Good
- 22 °C by day
- Sea 21 °C
- 7.5 h of sun a day
- 6 rainy days a month
Good for: Sightseeing & walks
- 26
Christmas holidays
Dec – Jan
Poor
- 16 °C by day
- Sea 17 °C
- 5.7 h of sun a day
- 6 rainy days a month
Good for: Sightseeing & walks
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 2 h 35 min
- Distance
- 1,710 km
- Time zone
- UTC+1
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Olhão
When is the best time to visit Olhão?
The best time to visit Olhão is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Olhão?
The sea temperature in Olhão ranges from 16.0 °C in February to 21.5 °C in August. It is warm enough for a comfortable swim (20 °C and more) from July to October.
Can you swim in Olhão in October?
Yes. In October the sea averages 20.8 °C – refreshing for a swim.
What is the warmest month in Olhão?
August is the warmest month, with average highs of 27 °C and nights around 21 °C. January is the coolest month at 15 °C.
When does it rain most in Olhão?
The wettest month is December with 64 mm of precipitation. The driest month is July with 1 mm.
How many hours of sunshine does Olhão get?
Olhão gets around 3,160 hours of sunshine a year. The sunniest month is July with 12.3 hours a day; in December there are 5.4 hours a day.
What time zone is Olhão in?
Olhão uses the time zone Europe/Lisbon: UTC+0 in January and UTC+1 in July.
How long is the flight from London to Olhão?
A nonstop flight from London to Olhão takes about 2 h 35 min, for a straight-line distance of about 1,710 km.
Which school holidays are best for Olhão?
Olhão has its best school-holiday weather during the summer holidays (score 90) and its weakest during the Christmas holidays (score 26). Holiday ratings (0–100): Easter holidays 35, May half-term 60, Summer holidays 90, October half-term 62, Christmas holidays 26.
Near Olhão
Other destinations close by.
Places with a climate like Olhão
Destinations whose weather through the year is closest to Olhão's – good alternatives.