Lagos (Algarve) weather in March
March in Lagos: nice, a little rain, with clean air — a great time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#8 of 12 months in Lagos · #668 of 1413 destinations to visit in March · comfort 76/100 (tier B)
- Days
- 18°C
- Nights
- 11°C
- Wet days
- 10
- Sun
- 10.1 h
- Humidity
- 75%
- Daylight
- 12 h

Traveller notes on Lagos in March
Other months in Lagos
Regulars are specific the dry season is well established here by the end of this month, with real rain typically not returning until the end of September, though an earlier shower or two in the first half remains a genuine possibility. Our row backs that mild, genuinely dry read, 23.4C over 15.1C nights feeling 14C, with rain light at 21.5mm across 3.7 days and a real 22.1 kph wind. Regulars are consistent the wind here makes conditions feel cooler than the number alone suggests, especially after dark, a jacket worth having even after a warm, sunny day. Mosquito repellent is a genuinely practical addition to the packing list alongside the usual sun protection. The sea sits at 17.2C. The record: 12.7 hours of sun, humidity 68 percent and AQI 46.
Lagos-forum threads on November weather describe a genuinely mixed month: some days cool and cloudy or wet, others warm enough for a light jacket to come off entirely, with the southern Algarve running noticeably drier and milder than Lisbon or the country's north during the same stretch. What sets Lagos apart from the Algarve's smaller resort towns, per regulars, is that it keeps functioning through the winter - a real year-round local population means cafes and shops stay open, and accommodation prices sit at their lowest. The catch some posters flag: on a genuinely bad-weather day, the town can turn notably windy and quiet after dark. Regulars still call most November days mild enough for a coastal walk or sightseeing. The record: 19.2C days feeling like 18C, 13.2C nights, 47mm across 8.1 days, a 17.1C sea, 78 percent humidity and 8.4 hours of sun.
Lagos-forum threads on September weather describe warm, lovely days undercut by cool, windy evenings - the far-western Algarve is called always windy, which makes the coast feel cooler than the daytime number suggests, and posters recommend a jacket, a wrap and an umbrella even on a sunny-looking day. Precipitation is called unusual through the early part of the month, with the back half more unsettled. The trade-off is worth it by most accounts: good weather, a fair number of tourists but not overwhelming, everything still open with nightlife running. The record: 26.8C days feeling like 27C, 18.1C nights, just 11mm across two days, a 17.6C sea still cool for swimming, and 11.1 hours of sun.
June in Lagos is dry and warm on land and cold in the water, and the forum's explanation is one sentence: this is the Atlantic, not the Mediterranean. The regional sea runs about 18 to 20C in June, and Lagos, Sagres and the west-facing coast sit at the cold end of that, below 20, because water comes up from the Atlantic depths regardless of what the Gulf Stream is doing 30km offshore. Our row says 18.4C. The sea can also be rough here in summer. The air is the opposite story - normally in the 30s, occasionally to 40 in the region - though our row's 25.9C for Lagos itself is tempered by a 23 kph wind. The record: 17.3C nights, 2 precipitation days carrying 6.1mm and 13.1 hours of sun.
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Lagos climate normals — March
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Lagos in March
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsEaster week, Easter holidays in Portugal, school holidays in 4 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Lagos's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherLagos's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Lagos in March
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Holiday
Easter week
29 Mar – 5 AprEaster & Holy WeekCrowdedClosuresGood Friday is a national holiday and Easter Sunday a day for family lunches. Many Portuguese take the week around it off, so hotels fill and rates rise for the first busy spell of the year, and some shops and museums close on Friday and Sunday. Source ↗
- Season
West coast swell season
15 Sep – 30 AprSurf seasonWinter lows put swell on the exposed west coast around Sagres and Arrifana, forty minutes away, while the south-facing town beaches stay flat. That split is why people base here.
- Season
Low season
1 Nov – 15 MarOff-season shutdownClosuresA share of the restaurants and most of the boat operators shut, and the marina goes quiet, but the town has enough residents to stay open. Rooms are a third of the August price.
Nearby, and something's on
Within 300 km of Lagos — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Lagos?
Lagos in March — FAQ
- Is March a good time to visit Lagos?
- March in Lagos: nice, a little rain, with clean air — a great time to visit. It ranks #8 of 12 months for Lagos on SeasonMap's comfort score (76/100).
- What is the weather like in Lagos in March?
- In March, Lagos averages a daily high of 18°C and a low of 11.2°C, with about 78.4 mm of rain over roughly 10.1 rainy days.
- What is the air quality in Lagos in March?
- Lagos has a mean US Air Quality Index of about 44 in March.
Within 300 km: Faro's Winter birds on the Ria Formosa around 1 Nov – 31 Mar, and Tavira's Waders on the Ria Formosa around 1 Oct – 31 Mar.