Early May 1 May
71°F
Typical afternoon high
22% historical wet-day frequency
Portugal · Beach
Óbidos, Nazaré & the Tagus Valley
in May.
Is May a good time?
Warm days.
More overnight stays than April.
May averages 76°F afternoons and 61°F seas, with about 4 rain days. Later May is typically warmer.
- Afternoons
- 76°F
- Sea
- 61°F
- Visitor demand
- 55%of August peak
Historical Oeste e Vale do Tejo regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Óbidos, Nazaré and Tomar; conditions vary within the region.
Overall match
8.3/10 · scores & prioritiesWhat matters most?
Weather 50% · Crowds 30% · Cost 20%
#4 of 12 months here · Balanced mix
Weather8.5/10Very good
CrowdsModerate seasonvs its own year; overnight stays do not measure queuesFor its size, typical for Europe this month
CostCheapfor Europe
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your May
What to expect.
What should I pack?
Afternoons around 76°F (24°C): T-shirt weather; nights around 52°F (11°C): a sweater and a light jacket. About 14 hours of daylight. About 4 rain days in a typical May.
Can I swim in May?
The sea averages 61°F. Our swimming guide: cold: short dips, or a wetsuit. Your comfort will vary. This is open water near the coast, not a beach-specific reading.
Monthly coastal averages from NOAA, 2011–2025. Sea temperature is separate from the weather and Overall scores.
A typical day: temperatures & daylightAfternoons, nights, sea temperature & daylight Show detailsHide details
About 14 hours of daylight.
The sun rises about 06:22 and sets about 20:40 (local time, mid-month). Mornings start around 52°F (11°C); afternoons reach about 76°F (24°C). Expect rain on about 4 days in a typical May.
Typical afternoon
76°F (24°C)
average daily high, 15 recent Mays
Night low
52°F (11°C)
average daily minimum
Sea
61°F (16°C)
cold; open water near the coast, NOAA satellite record 2011–2025
Daylight
14h 18m
on the 15th, computed from latitude
Early, middle or late?
Early or late May?
Late May is typically warmer. The afternoon high averages 71°F on the 1st, versus 78°F on the 31st. Historical wet-day frequency falls from 22% to 10% between those dates.
Mid May 15 May
75°F
Typical afternoon high
15% historical wet-day frequency
Late May 31 May
78°F
Typical afternoon high
10% historical wet-day frequency
Historical daily averages from 2011–2025, smoothed over two weeks. A seasonal pattern, not a forecast. This does not establish which week has the lowest prices or fewest visitors.
Public holidays · 2027: 1 May Labor Day; 27 May Corpus Christi.
Daily calendar & holiday datesMay 2027 · historical weather & dated holidays Show calendarHide calendar
May 2027 calendar
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 171° | 272° | |||||
| 372° | 472° | 573° | 673° | 773° | 874° | 974° |
| 1075° | 1175° | 1275° | 1375° | 1475° | 1575° | 1675° |
| 1776° | 1876° | 1976° | 2076° | 2176° | 2277° | 2377° |
| 2477° | 2577° | 2678° | 2778° | 2878° | 2978° | 3078° |
| 3178° |
Afternoon high rain likely (25%+) local school holidays public holiday event
Afternoons warm from about 72°F (22°C) in the first week to 78°F (26°C) in the last. The chance of a wet day runs 8–22%.
No school holidays here in May 2027. Public holidays: 1 May Labor Day; 27 May Corpus Christi. Elsewhere in May 2027, the share of people living where schools are out on a typical day: Germany 13%, Greece 29%. (School holidays: OpenHolidays, ODbL.)
Crowds and cost
Visitor season
Will it be busy?
Moderate season. May averages 55% of August's overnight stays per day. More overnight stays than April.
Overnight stays across Oeste e Vale do Tejo do not measure queues, day visitors or congestion at individual sights. For its size, typical for Europe this month.
Hotel price season
Will it be cheaper?
About usual. Historical regional hotel revenue (2024–2025 monthly average): €45 per guest-night. An average, not a booking quote.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
Historical hotel average
€45
2024–2025 monthly average; hotel revenue per guest-night; not a current booking quote. +3% vs this region's usual month.
Portugal as a whole
Well below EU average
2024 restaurants and hotels price level: 76 where the EU average is 100. A relative index, not a room rate.
The historical regional amount comes from INE Portugal, Inquérito à Permanência de Hóspedes: hotel room revenue per guest-night; the country price level is national. Hotel averages are not live booking quotes.
Year-to-year variation
How much does May vary?
Across the recorded years
In the 15 years from 2011 to 2025, the month's afternoons averaged between 71°F (21°C) and 80°F (27°C); in 8 of them they were within 3°F (1.5°C) of the typical 76°F (24°C). Rain days ranged from 2 to 10; half the years had 2–7.
Rain days in each May
Rain days
4
at least 1 mm, typical year; about 8 in a wet year
Mostly sunny days
10 of 31
cloud cover under 30%
Years with a 95°F+ day
4 of 15
of the last 15 Mays had at least one day at or above 95°F (35°C)
Good weather days
23 of 31
rated very good or better
See every recorded MayHistorical monthly averages, year by year Show detailsHide details
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 78°F | 9 |
| 2012 | 76°F | 8 |
| 2013 | 71°F | 3 |
| 2014 | 75°F | 4 |
| 2015 | 78°F | 2 |
| 2016 | 71°F | 10 |
| 2017 | 77°F | 5 |
| 2018 | 72°F | 3 |
| 2019 | 79°F | 2 |
| 2020 | 78°F | 7 |
| 2021 | 72°F | 2 |
| 2022 | 80°F | 2 |
| 2023 | 78°F | 4 |
| 2024 | 74°F | 3 |
| 2025 | 75°F | 4 |
Checked against official climate averages for Alcobaca (Estacao de Fruticultura Vieira Natividade) and Santarem (Fonte Boa). How we check
Compare dates
April, May
or June?
| Typical conditions | Apr | May | Jun |
|---|---|---|---|
| Afternoons | 70°F | 76°F | 80°F |
| Sea | 59°F | 61°F | 64°F |
| Rain days | 9 | 4 | 2 |
| Overnight demand | 48% | 55% | 58% |
April: Cooler afternoons, cooler sea and more rain days than May. Less overnight demand. April guide →
June: Warmer afternoons, warmer sea and fewer rain days than May. June guide →
Overnight demand measures accommodation stays, not queues. Sea temperatures are monthly coastal averages.
Compare any of the 12 monthsChoose another month and compare it with May Show comparisonHide comparison
Yellow marks the top three months on the Balanced mix. May stays as your reference.
June has a Weather score at least 1.0 point higher than May, without a substantially busier visitor season.
Your comparison
May or April?
Overnight stays are 48% of the busiest month.
Historical regional hotel revenue (2024–2025 monthly average): €41 per guest-night. An average, not a booking quote.
Read the April guide →| Typical conditions | May | April |
|---|---|---|
| Afternoons | 76°F | 70°F |
| Nights | 52°F | 50°F |
| Sea | 61°F | 59°F |
| Rain days | 4 | 9 |
| Visitor season | Moderate season | Moderate season |
| Overall / 10 | 8.3 | 7.6 |
| Month rank | #4 | #7 |
Every month, in detail Show detailsHide details
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 6.3 | #12 | 60°F | 45°F | 59°F | 8 | 4.3 | Low season |
| February | 6.9 | #10 | 62°F | 46°F | 58°F | 9 | 4.9 | Low season |
| March | 7.3 | #8 | 65°F | 47°F | 58°F | 8 | 5.6 | Moderate season |
| April | 7.6 | #7 | 70°F | 50°F | 59°F | 9 | 6.7 | Moderate season |
| May | 8.3 | #4 | 76°F | 52°F | 61°F | 4 | 8.5 | Moderate season |
| June | 8.7 | #1 | 80°F | 55°F | 64°F | 2 | 9.5 | Moderate season |
| July | 8.5 | #3 | 85°F | 57°F | 65°F | 0 | 10.0 | Busy season |
| August | 7.9 | #5 | 86°F | 58°F | 65°F | 0 | 10.0 | Peak season |
| September | 8.6 | #2 | 82°F | 58°F | 66°F | 3 | 9.7 | Busy season |
| October | 7.9 | #6 | 75°F | 57°F | 65°F | 9 | 7.8 | Moderate season |
| November | 7.2 | #9 | 65°F | 50°F | 63°F | 10 | 5.5 | Moderate season |
| December | 6.8 | #11 | 61°F | 46°F | 60°F | 8 | 4.8 | Low season |
Near here
Nearby places in May
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
LisbonPortugal · about 40 miles
Balanced Overall 8.2 · Excellent weather, 72°F (22°C) · Steady all year · Cost pricey
Setúbal PeninsulaPortugal · about 50 miles
Balanced Overall 8.5 · Very good weather, 74°F (23°C) · Moderate season · Cost cheap
Central Portugalabout 80 miles
Balanced Overall 8.2 · Very good weather, 74°F (23°C) · Moderate season · Cost cheap
The AlgarvePortugal · about 140 miles
Balanced Overall 8.6 · Excellent weather, 77°F (25°C) · Moderate season · Cost cheap
Porto & northern Portugalabout 160 miles
Balanced Overall 7.2 · Very good weather, 72°F (22°C) · Busy season · Cost moderate
Elsewhere in Europe
Better May weather than Óbidos, Nazaré & the Tagus Valley
Óbidos, Nazaré & the Tagus Valley's weather ranks 26 of 77 beach regions this month. These beach regions outside Portugal have clearly better weather on your dates, nearest first, each compared with Óbidos, Nazaré & the Tagus Valley.
AndalusiaSpain · about 250 miles
Excellent weather (9.7): 5°F warmer afternoons, pricier
CeutaSpain · about 300 miles
Excellent weather (9.5): 3°F cooler afternoons, 2 fewer rain days, pricier
MurciaSpain · about 400 miles
Excellent weather (9.9): 5°F warmer afternoons, 2 fewer rain days
MelillaSpain · about 420 miles
Excellent weather (10.0): 6°F warmer afternoons, 2 fewer rain days, pricier
Valencia & the Costa BlancaSpain · about 430 miles
Excellent weather (9.8): 3°F warmer afternoons, pricier
How we knowSources, regional scope & scoring method Show detailsHide details
It's moderate season, 55% of the busiest month and 8% above its average month. That means about 12,000 overnight visitors on a typical May night across the region, 45% of them from Portugal itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 4,100 more: 34 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Beach, 0–100) | 78 |
| How our weather was checked | Official climate averages for Alcobaca (Estacao de Fruticultura Vieira Natividade) and Santarem (Fonte Boa) from the national weather service, every month: afternoon highs typically within 1°F (0.6°C), night lows within 3°F (1.4°C). |
| Tourist nights per 1,000 residents per day | 14 |
| Busiest month here | August · 26 |
| Visitors as share of people present | 1.4% |
| Rank among Europe's regions this month | 50th percentile |
| Domestic share of nights | 45% |
| Platform rental nights per 100 counted nights | 34 |
| Visitor share if every platform night were extra | 1.9% |
| Population used | 865,000 |
| Statistical region | PT1D · Oeste e Vale do Tejo |
Crowds: Eurostat nights spent at tourist accommodation, by month and NUTS 2 region, 2024–2025 average. Overnight visitors per night is the month's nights divided by its days; the per-1,000 figure is Eurostat's, against each year's population. Platform rentals: Eurostat nights booked via Airbnb, Booking, Expedia and Tripadvisor, 2024–2025 average, shown separately because some properties are in both counts. Weather: Holiday Climate Index computed from ERA5 reanalysis with daily highs, night lows and rain days corrected from open national weather-service station records, 2011–2025, population-weighted to the region; day-by-day figures are the same data averaged by date. Heat and rain odds are counted across those years. Sunrise and sunset: NOAA solar equations, local time. Prices: Eurostat price level index and HICP, national; the first figure is regional (INE Portugal, Inquérito à Permanência de Hóspedes: hotel room revenue per guest-night). Full method · this region's data.