LISBON · JULY · 38.72° N
July hands Lisbon its most predictable weather of the year. The IPMA normal for the month is an average high of 82.9°F and an average low of 64.4°F, with 0.11 inch of rain spread across all thirty-one days. The sun clears the rooftops before 06:30 and stays up past 21:00, so a single day can hold Belém in the morning, a shaded lunch, and a viewpoint at nine in the evening.
What the month takes back is room to improvise. Monuments run at their annual ceiling, and Jerónimos Monastery states outright that its tickets frequently sell out and then cannot be bought on the day of the visit. The Atlantic stays Atlantic too, averaging 66.7°F off the city. Travelers who want the same dry light with softer demand should read the June figures before booking anything.
THE MONTH AT A GLANCE · LISBON IN JULY
July is Lisbon’s driest, brightest month at 82.9°F and 0.11 inch of rain, and also its most booked: buy the timed monument tickets before you fly, and treat the 66.7°F Atlantic as a rinse rather than a beach day.
IPMA 1991-2020 NORMALS · STATION 579 LISBOA GAGO COUTINHO · PEAK DEMAND
Go for: reliable dry heat, 14 h 39 min of daylight on July 15, dinner outdoors after a 21:02 sunset, and a swimmable coast one train ride from the center.
Think twice before: counting on walk-up tickets or a warm swim: Jerónimos sells out online first, and the sea averages 66.7°F.
Climate: IPMA station 579 · Sea: Open-Meteo Marine · Fares: Metropolitano de Lisboa and Carris 2026 · full sources at the end
On this page
- Lisbon weather in JulyHighs of 82.9°F and 0.4 rain days
- Can you swim in July?A 66.7°F sea, measured as daily maxima
- How busy and how expensive July isPeak demand, sold-out tickets, the city tax
- Things to do with prices and hoursJerónimos at €18, Oceanário from €25
- A two-day plan for the heatTwo days timed to a 21:02 sunset
- July vs June and AugustThe three-month table, heat, rain and sea
- Should I shift my dates?The July verdict, and the month to move to
July is the driest of Lisbon’s three summer months in the IPMA record, at 0.11 inch against 0.53 inch in June and 0.20 inch in August. Everything that follows about heat, water and queues sits on top of that one number.
Lisbon weather in July: average highs, lows and rain days
| Measure | July normal (1991-2020) |
|---|---|
| Average high | 82.9°F |
| Average low | 64.4°F |
| Precipitation, whole month | 0.11 in |
| Days at 1 mm (0.04 in) or more | 0.4 |
| Days at 10 mm (0.39 in) or more | 0.1 |
| Daylight on July 15 | 14 h 39 min |
| Sea surface, mean of daily maxima | 66.7°F |
Every figure here comes from one place: IPMA’s 1991-2020 climatological normals for station 579, Lisboa Gago Coutinho, at 103.9 meters above the city. That distinction is worth a sentence, because those numbers come off a real thermometer with a station number rather than a model grid cell averaged over a square of coastline. The July line reads 82.9°F by day, 64.4°F at night, and 0.11 inch of rain for the entire month.
Rain days in that record are counted at the national service’s own thresholds, not the 0.10-inch line American tables use, so the two sets of counts do not swap. The count at 1 mm (0.04 inch) or more is 0.4 days in an average July. Anything reaching 10 mm (0.39 inch) happens on 0.1 day. Practically, a wet afternoon in Lisbon in July is a story you tell later, and the rain shell stays at the bottom of the bag.
The gap between 82.9°F and 64.4°F is 18.5 degrees, and it arrives exactly where you spend it: on a miradouro at ten in the evening, in the wind off the river, inside a tiled church that never warmed up. One light layer covers all three. The daytime half asks for the opposite, plus shoes that grip cobbles, since the hills are the real exertion of any Lisbon day. The packing list goes further.
On July 15 the city collects 14 hours 39 minutes of daylight, with sunrise at 05:23 UTC and sunset at 20:02 UTC. Lisbon runs an hour ahead of UTC in summer, so those are 06:23 and 21:02 on local clocks. Dinner at 20:30 happens in full light. Sightseeing splits cleanly into 09:00 to 13:00 and anything after 18:00, with the four hours between them best spent indoors or under a tree.
Can you swim in Lisbon in July? A 66.7°F sea, measured as daily maxima
Sea surface off Lisbon averages 66.7°F in July in the Open-Meteo Marine record for 2015 to 2024. Read the small print on that figure: it is the mean of daily maxima, which makes it a shade warmer than a mean taken across full 24-hour days. The water you walk into at eight in the morning sits a little under 66.7°F, and the number matches what you feel by mid-afternoon.
Set 66.7°F against an 82.9°F air temperature and you get a 16-degree step down, which is why Atlantic swimming here works in bursts. Adults tend to last a few minutes before the shoulders object, children last as long as they are allowed, and everyone warms up again in ninety seconds of July sun. Cascais and the Estoril line are the standard fix from the center, a short train ride covered by the €11.40 version of the 24-hour ticket.
On wind and swell, our sources carry no July value for Lisbon, so no figure appears here instead of an invented one. The exposure is documented another way: Belém Tower can close whenever weather compromises visitor safety, according to the monument itself. Take that as the coast’s standing reminder that the Atlantic writes the terms even in the driest month of the year.
How busy is Lisbon in July? Peak demand, sold-out tickets and the city tourist tax
July sits inside Lisbon’s demand peak, and we hold no verified occupancy or price index for the city to hang a percentage on. The measurable proxy is ticket supply. Jerónimos tells visitors to buy online because tickets frequently sell out and then cannot be bought on the day of the visit. That sentence comes from the monument, not from us.
Booking order follows from it. Timed monument tickets are the piece to lock before you fly, and we would buy Jerónimos and the Oceanário in the same sitting as the flights, roughly six to eight weeks out (est.). Rooms and the Sintra day form the next tier. The €0.50 navegante card can wait until you land, since machines sell it at every metro station and it reloads for a year.
Lisbon charges a municipal tourist tax per night on top of the room rate, and no amount appears here. Neither primary source would open to us on September 8, 2026: the city’s information portal returned a 403, and the Diário da República requires JavaScript. Ask the property to state the per-night figure in writing when you book, and keep it out of your nightly-rate math.
One upgrade earns its money in July, and it is the fare that gets you out of the city on the hottest afternoon. The 24-hour Carris and Metro ticket costs €7.25. The version adding the CP suburban trains toward Sintra and Cascais costs €11.40, so €4.15 buys the coast on a day averaging 82.9°F. The €10.35 version adds the Cacilhas ferry instead, for a river crossing rather than a swim.
Things to do in Lisbon in July: hours, ticket prices and the free windows
What July gives that the shoulder months cannot is a plan that holds its shape. With 0.4 rain days and 14 hours 39 minutes of light, an evening built outdoors for July 12 almost certainly happens on July 12. The monument calendar runs clean as well: the Jerónimos closure list (January 1, Easter Sunday, May 1, June 13, December 25) falls entirely outside the month, leaving Mondays as the only locked door.
Jerónimos cloister: €18, Tuesday to Sunday 09:30 to 17:30, last entry 17:00, and no audio guides provided. The church keeps its own hours, 10:30 to 17:00 Tuesday to Saturday, 14:00 to 17:00 on Sunday. Belém Tower: €15, closable in rough weather. The Oceanário runs 10:00 to 20:00 with last entry at 19:00, €29 for adults in the 10:00 to 11:30 slot against €25 from 16:00, 5 percent off online, 90 to 120 minutes inside. The Gulbenkian opens Wednesday to Monday, 10:00 to 18:00, shut Tuesdays, €18 all inclusive or €12 for the CAM.
Free admission in July comes with conditions worth reading twice. The Gulbenkian is free on Saturdays from 18:00 to 21:00 for under-30s carrying the Cartão Gulbenkian, which costs nothing to join. Sunday from 14:00 is free only for under-18s and for holders of the Gulbenkian Mais, ICOM, AICA and APOM cards, not for the general public. And the Acesso 52 free entry at Jerónimos and Belém Tower covers Portuguese nationals and residents only, so an American visitor pays €18 and €15 on any day of the year, whatever the guides promising a free Sunday morning say.
Lisbon in July: a two-day itinerary
Day one belongs to Belém. Take the 09:30 opening at Jerónimos with the €18 ticket already bought online, then Belém Tower at €15 before the river wind picks up. Get off the street between 13:00 and 17:00: a long lunch, then the Gulbenkian until its 18:00 close, reached on a €1.90 Carris and Metro ticket loaded onto the navegante card. From 19:00 the city sheds a degree at a time. Aim at a miradouro for the 21:02 sunset and eat afterward, on local time.
Day two goes to water and the modern riverside. Buy the €11.40 24-hour ticket, ride the CP line to Cascais while the air is still short of its 82.9°F ceiling, swim briefly in the 66.7°F Atlantic, and come back inland by mid-afternoon. Should the weather turn, and 0.4 rain days say it rarely does, the Oceanário’s 16:00 to 18:30 slot at €25 is the indoor answer, with last entry at 19:00. Belém Tower may well be shut on that kind of day anyway.
Lisbon in July vs June and August
| Measure | June | July | August |
|---|---|---|---|
| Average high | 79.0°F | 82.9°F | 84.2°F |
| Average low | 61.7°F | 64.4°F | 65.3°F |
| Precipitation | 0.53 in | 0.11 in | 0.20 in |
| Days at 1 mm (0.04 in) or more | 2.0 | 0.4 | 1.0 |
| Sea surface (daily maxima) | 66.8°F | 66.7°F | 66.2°F |
Read as one series, the three months form a long dry stretch with a hot middle. June averages 79.0°F by day and 61.7°F at night, July 82.9°F and 64.4°F, August 84.2°F and 65.3°F. Rain separates them further than heat does: 0.53 inch across 2.0 days in June, 0.11 inch across 0.4 days in July, 0.20 inch across 1.0 day in August. The sea hardly notices, moving from 66.8°F to 66.7°F to 66.2°F.
Shift four weeks back and you take 3.9 degrees off the daytime high and keep the same water, within a tenth of a degree, in exchange for nearly five times July’s rain total. Shift four weeks forward and August adds 1.3 degrees, holds the dryness, and cools the sea by half a degree. The full cases sit in the June page and the August page, with the twelve-month verdict for dates still fully open.
Is July a good time to visit Lisbon?
Yes for travelers whose plan lives outdoors and who accept a booking discipline: the driest normals of the year, more than 14 hours of light, evenings usable to midnight. No for anyone hoping for a warm Mediterranean swim, quiet monuments, or the freedom to decide over breakfast what to see at eleven. Jerónimos does not sell to walk-ups once its online allocation is gone.
If that reads as no, June is the month to move to. Daytime highs drop to 79.0°F, the water is 66.8°F rather than 66.7°F, and demand sits a notch under the peak. June charges for it in rain, 0.53 inch over 2.0 days, and in one closure that can wreck a Belém morning: Jerónimos shuts on June 13 for Lisbon’s Santo António holiday.
No other month pairs those two numbers: 0.11 inch of rain, the driest of the three summer months, wrapped inside 14 hours 39 minutes of daylight.
The last word
Decide the month on the water, not the air: 66.7°F is the figure that settles whether Lisbon in July becomes a beach trip or a city trip with a cold rinse at the end. Then give two minutes to fares before you land. A metro ride paid from a zapping balance costs €1.72, the identical ride tapped with a contactless bank card costs €1.92, and the €1.90 Carris and Metro ticket is the one that also covers trams, buses and funiculars. The card holding any of it costs €0.50 and reloads for a year.
Sources & data for this guide
- July normals (82.9°F / 64.4°F / 0.11 in) and rain-day counts · IPMA climatological normals 1991-2020, station 579 Lisboa Gago Coutinho, altitude 103.9 m · checked Sep 10, 2026
- June and August normals used in the comparison table · same IPMA 1991-2020 series, station 579 · checked Sep 10, 2026
- Sea surface 66.7°F, mean of daily maxima 2015-2024 · Open-Meteo Marine API · checked Sep 10, 2026
- Daylight 14 h 39 min, sunrise 05:23 UTC and sunset 20:02 UTC on July 15 · sunrise-sunset.org, converted to Europe/Lisbon · checked Sep 10, 2026
- Fares: €1.90 Carris/Metro ticket, €0.50 navegante card, €1.72 zapping and €1.92 contactless metro rides, 24-hour tickets at €7.25 / €10.35 / €11.40 · Metropolitano de Lisboa Tarifas 2026 and Carris Novo Tarifário 2026, in force since January 1, 2026 · checked Sep 10, 2026
- Jerónimos €18, hours, closure list, no audio guides, sell-out warning · Belém Tower €15 and weather closures · Acesso 52 free entry restricted to Portuguese nationals and residents · official monument sites · checked Sep 10, 2026
- Oceanário time-slot prices (€29 / €27 / €25 adult), 10:00 to 20:00 hours, last entry 19:00, 5 percent online discount · Oceanário de Lisboa tickets page · checked Sep 10, 2026
- Gulbenkian prices, Wednesday to Monday hours and the two free windows · Fundação Calouste Gulbenkian · checked Sep 10, 2026
- Lisbon’s municipal tourist tax: we could not read the per-night amount on a primary source, so no figure is served. The city information portal returned a 403 and Diário da República requires JavaScript · attempted Sep 8, 2026
- No July event dates appear on this guide because our sources carry none for 2026 · editorial note. Prices, hours and closures change · confirm with each operator when you book.