Best Time to Visit Funchal: Month-by-Month Weather, Sea Temperature and the Quiet Season

FUNCHAL · MADEIRA · BEST TIME TO VISIT

Funchal is the rare Atlantic city where the calendar argues over degrees rather than seasons. August afternoons average 80.2°F, February afternoons 67.8°F, and nothing in between ever asks for a winter coat. What actually separates a good week from a soggy one is rain, and rain here is concentrated: 0.05 inches in August, 3.73 in December.

So the question is not whether Funchal will be warm. It will. The question is whether the sea is warm enough to swim, whether your week lands in the wet half of the year, and whether the levadas above town are walkable or streaming. Below is the full twelve months from the national weather service, then a straight answer.

On this page

• Funchal weather month by monthThe twelve-month table, highs to sea temperature
• The single best month to bookSeptember, and the figures behind it
• When the sea is warm enough to swimSea temperature from July to November
• The quiet weeks in FunchalJanuary to March, read off the calendar
• The month to avoidDecember, 8.6 wet days and 10 h 04 of light
• May, June or October insteadHow the shoulder months compare with August

One number frames the whole year: 12.4 degrees separate the coolest month’s average high from the warmest. Funchal does not have a cold season, so the trade you are making is between water temperature, daylight and wet days, not between summer and winter.

Funchal weather month by month: highs, lows, rain and sea

Read the rain column and the year sorts itself: a bone-dry core from May to September, and a wet half running October to March that peaks at 3.73 inches in December. Temperature barely moves by comparison, with every month between 67.8°F and 80.2°F.

Two hinges do most of the work. Between May and June the rain collapses from 1.07 inches to 0.31 and wet days from 3.3 to 1.0, which is when Funchal’s summer really starts. Between September and October it reverses harder than anyone expects: afternoons give up only 2.5 degrees (79.9°F to 77.4°F) while rainfall jumps from 0.91 inches to 3.59 and wet days go from 3.1 to 7.0.

December is the year’s most awkward month, and awkward for a specific traveler. Anyone on a fixed seven-day trip faces 8.6 days of measurable rain and 3.5 days of 10 mm or more in an average December, plus the shortest daylight of the year at 10 hours 04 minutes. A beach week survives that badly. A city-and-restaurants week barely notices.

Every figure here comes from IPMA station 522, a real thermometer standing in Funchal at 58.0 meters, on the 1991-2020 normals period, not a model grid cell and not a proxy on another coast. It describes the city alone: high ground on the island is colder and far wetter. Note the rain-day thresholds too, 1 mm (0.04 inch) and 10 mm (0.39 inch), set by the Portuguese national service. They are not the 0.10-inch threshold American tables use, and the counts do not convert.

When is the best time to visit Funchal?

September. Average high 79.9°F, low 68.7°F, a sea averaging 76.1°F, 0.91 inches of rain spread over 3.1 wet days, and 12 hours 24 minutes of daylight on the 15th. That combination puts swimming, hillside walking and late dinners in the same week, which no other month on the table quite manages.

August beats it on paper by margins you cannot feel: 0.3 degrees of air and 0.5 degrees of water, against the island’s busiest fortnight and the highest airfares of the year out of the US. October is the trap on the other side. It keeps 77.4°F afternoons, then delivers close to four times September’s rainfall, 3.59 inches, across more than double the wet days. September sits in the gap, and the gap is narrow.

Two nights in Funchal covers the old town, the market and the cable car up to Monte, but the island rewards a week: most visitors pair the city with the north coast and the peaks. Plan the rest of the trip with our Madeira guide, weigh it against the mainland in the Portugal twelve-month verdict, and check routings in flights from the US before you fix the dates.

When can you swim in Funchal? Sea temperature month by month

Call 73°F the line at which most Americans get in without thinking about it, and five months clear it off Funchal: July at 75.0°F, August at 76.6°F, September at 76.1°F, October at 75.6°F and November at exactly 73.0°F. June comes close at 71.6°F. The cold end of the year sits lower than Madeira’s reputation suggests, with March at 66.9°F, February at 67.2°F and April at 68.0°F, all swimmable for the determined and brisk for everyone else.

One caveat about those water figures. They are the mean of daily maxima from the Open-Meteo Marine API over 2015-2024, so they run a shade warmer than a 24-hour average, and they come from a different source and a different period than the air normals above. Morning swims, before the surface has taken any sun, will feel a touch cooler than the column says.

When is Funchal quietest?

The lull runs from mid-January to the end of March, after the New Year’s Eve crowds have flown home and before Easter refills the hotels. That is a calendar fact rather than a price claim: we carry no price series for Funchal, and this page ranks nothing by cost.

What those weeks buy is walking weather. February records 5.5 days of rain at 1 mm or more, the fewest of the wet half of the year, against 8.6 in December and 7.3 in November, and afternoons still average 67.8°F. March adds real daylight, 12 hours 01 minute on the 15th, almost two hours more than January’s 10 hours 17. Trails and viewpoints have room in them.

The losses are specific. The sea bottoms out in March at 66.9°F, its coldest of the twelve months, so a swimming holiday is off. January still carries 2.3 days of 10 mm or more and 10 hours 17 minutes of light, over four hours less than June’s 14 hours 20. Evenings arrive while you are still looking for lunch’s second coffee.

Which month should you avoid in Funchal?

December, if your trip depends on being outside. It is the wettest month of the twelve, 3.73 inches of it, with 8.6 days recording at least 1 mm and 3.5 days recording 10 mm or more, and the shortest daylight of the year at 10 hours 04 minutes. Hikers and photographers lose more of a week to that than to any other month. October deserves the same warning from the opposite direction: warm at 77.4°F, and wet at 7.0 days.

December still has an argument. Its average high of 69.8°F matches April’s exactly, its sea at 70.3°F is warmer than anything from January through May, and the city ends the month with the harbor fireworks that fill every hotel on the bay. Come for the town and the food and December pays; come for the levadas and it charges you.

Is the shoulder season worth it in Funchal?

The shoulder here is May and June at the front, October at the back. May averages 71.6°F, a full 8.6 degrees below August’s 80.2°F. June averages 74.7°F, 5.5 degrees below. On rain, June has already joined summer: 0.31 inches over a single wet day, against August’s 0.05 inches over 0.4.

June’s advantage is light and comfort. The sun is up for 14 hours 20 minutes on the 15th, the longest stretch of the year and 57 minutes more than August gives, which matters on a full-day walk with a bus at each end. Afternoons in the high 70s make the climb above Monte a different proposition from the same climb at 80.2°F.

The water is what the shoulder takes away. May averages 69.9°F and June 71.6°F, so both sit under the comfort line, 6.7 and 5.0 degrees below August. October keeps the sea at 75.6°F but hands back 3.59 inches of rain over 7.0 days, the second-wettest month on the table.

So split it by what you came for. Hiking and long daylight point at June, with the sea as a bonus you may skip. Swimming points at September, where 76.1°F water and 3.1 wet days coexist. May is the compromise, driest of the three at 1.07 inches over 3.3 days, and the one where you should pack for the trail rather than the beach. Our packing guide covers the layers this island demands.

The last word

Choose September and stop optimizing. If those weeks are spoken for, take June for the trails and accept a 71.6°F sea, or take March, when the sun rises at 7:15 and sets at 7:16 in the evening for 12 hours 01 minute of light, the almond blossom is out on the terraces, and the city belongs to the people who live in it. Just do not book Funchal in December expecting a beach week, and do not pack for the peaks using a thermometer that stands at 58 meters.

Sources & data for this guide

• Air normals, rainfall and rain days at the 1 mm and 10 mm thresholds · IPMA, Instituto Português do Mar e da Atmosfera, 1991-2020 normals, station 522 Funchal, altitude 58.0 m · checked Sep 12, 2026
• Sea surface temperature, mean of daily maxima 2015-2024 · Open-Meteo Marine API · checked Sep 12, 2026
• Daylight length, sunrise and sunset on the 15th of each month · sunrise-sunset.org, converted to Atlantic/Madeira · checked Sep 12, 2026
• The 73°F swim line is our editorial call, not a figure published by any source above.
• We hold no price series for Funchal, so the quiet season here is named by the calendar and nothing is ranked by cost.
• Festival dates, ferry and cable car hours change · check operators when you book.