Backdoor
Surf spot · Brazil
Is it worth the trip?
30Poor out of 100 for your dates
Best on Sat 7: 3 ft swell at 5 s
Mon 2 · 28 out of 100
- Swell
- 2 ft4 s
- Energy
- 13kJ
- Wind
- ENE 7 kn
- Temp
- 26°C
Tue 3 · 28 out of 100
- Swell
- 2 ft5 s
- Energy
- 11kJ
- Wind
- SW 1 kn
- Temp
- 27°C
Wed 4 · 28 out of 100
- Swell
- 2 ft4 s
- Energy
- 20kJ
- Wind
- NE 8 kn
- Temp
- 27°C
Thu 5 · 16 out of 100
- Swell
- 2 ft4 s
- Energy
- 12kJ
- Wind
- NNE 11 kn
- Temp
- 27°C
Fri 6 · 31 out of 100
- Swell
- 3 ft5 s
- Energy
- 53kJ
- Wind
- N 11 kn
- Temp
- 27°C
Sat 7 · 40 out of 100
- Swell
- 3 ft5 s
- Energy
- 54kJ
- Wind
- NNE 7 kn
- Temp
- 27°C
Sun 8 · 26 out of 100
- Swell
- 3 ft5 s
- Energy
- 41kJ
- Wind
- N 13 kn
- Temp
- 27°C
Tap a day for waves, wind and the temperature. Full forecast
Forecast: next 10 days
Full forecast- Mon 217, too small
- Tue 319, too small
- Wed 422, too small
- Thu 511, too small
- Fri 634, poor
- Sat 743, poor
- Sun 825, poor
- Mon 963, good
- Tue 1011, too small
- Wed 1125, poor
The spot in six facts
- Faces Etakes swell from the E
- Offshore: Wwind from the land
- Intermediate +who it suits
- Works 2–8 ftof swell
- Water 27 °Cno wetsuit
- Best in Mar4 good days in 7
Full forecast
every day, every number
The score doesn't know rips, currents, rocks or your skill.
| Day | Score for intermediates | Swell | Energy | Wind | Temp |
|---|---|---|---|---|---|
| Mon 2Nov | 17, too small | 2 ft4 s2 ft at break (est.) | 13kJ | wind from the east-north-east, 7 knots | 26°C |
| Tue 3Nov | 19, too small | 2 ft5 s2 ft at break (est.) | 11kJ | offshorewind from the south-west, 1 knot, offshore | 27°C |
| Wed 4Nov | 22, too small | 2 ft4 s3 ft at break (est.) | 20kJ | wind from the north-east, 8 knots | 27°C |
| Thu 5Nov | 11, too small | 2 ft4 s2 ft at break (est.) | 12kJ | wind from the north-north-east, 11 knots | 27°C |
| Fri 6Nov | 34, poor | 3 ft5 s4 ft at break (est.) | 53kJ | wind from the north, 11 knots | 27°C |
| Sat 7Nov | 43, poor | 3 ft5 s4 ft at break (est.) | 54kJ | wind from the north-north-east, 7 knots | 27°C |
| Sun 8Nov | 25, poor | 3 ft5 s4 ft at break (est.) | 41kJ | wind from the north, 13 knots | 27°C |
| Mon 9Nov | 63, good | 3 ft5 s4 ft at break (est.) | 56kJ | wind from the north-north-east, 1 knot | 27°C |
| Tue 10Nov | 11, too small | 2 ft6 s3 ft at break (est.) | 36kJ | wind from the south, 15 knots | 25°C |
| Wed 11Nov | 25, poor | 4 ft6 s4 ft at break (est.) | 76kJ | wind from the south, 15 knots | 26°C |
Energy is the swell's power, in kJ per metre of wave. Wind is in knots, the arrow where it blows to; green is offshore. More
Tide
- Mon 2 NovLow 03:42 −0.6 mHigh 10:06 +0.5 mLow 16:21 −0.4 mHigh 22:19 +0.6 m
- Tue 3 NovLow 05:03 −0.7 mHigh 11:20 +0.6 mLow 17:32 −0.5 mHigh 23:31 +0.7 m
- Wed 4 NovLow 06:05 −0.7 mHigh 12:15 +0.7 mLow 18:26 −0.6 m
Local clock times; heights about mean sea level. On open coasts the times are usually within a quarter of an hour; in bays, estuaries and on the Gulf of Mexico they can be an hour or more out. Tide: EOT20 global ocean tide model, Hart-Davis et al. 2021, DGFI-TUM (doi:10.17882/79489), CC BY 4.0. Times and heights computed by us. A model, not a tide table: check a local table before you go.
Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.
Best time to go
best in Mar
Good days in a typical week, each month, for intermediate surfers, from 2016 on (history scored the same way).
- Jan2of 7: a trip from Sat 2 Jan
- Feb3of 7: a trip from Sat 6 Feb
- Mar4of 7: a trip from Sat 6 Mar
- Apr3of 7: a trip from Sat 3 Apr
- May2of 7: a trip from Sat 1 May
- Jun2of 7: a trip from Sat 5 Jun
- Jul2of 7: a trip from Sat 3 Jul
- Aug2of 7: a trip from Sat 7 Aug
- Sep1of 7: a trip from Sat 4 Sept
- Oct1of 7: a trip from Sat 2 Oct
- Nov2of 7: a trip from Tue 3 Nov
- Dec2of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical, not a forecast.
Map
the spot and its town
Backdoor on Google Maps · Directions
Each place wears its best day on these dates, a surf spot for intermediates: green good, amber fair, pale red poor, as the key says.
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More surf near here
2 places
- tirraras point 12.6 km away
- Sirihyba 12.8 km away
About
the place in full, sources, credits
About Backdoor
Facing, offshore wind, exposure, level and swell range are estimated.
The spot faces E (85°), so it takes swell from the E. The wind blows offshore from the W (265°). It is exposed to the open swell. It suits intermediate surfers and up. It works in 2–8 ft of swell. The sea is about 26°C in July, its coldest month (no wetsuit), and 29°C in February, its warmest (no wetsuit). For intermediate surfers the best month is usually March, with about 4 good days in 7; in September and October, about 1. From the weather of past years. The town to stay in is Ilhéus, 7.1 km away (about 15 min by car).
Water about 27°C: no wetsuit. Typical sea temperature for the time of year, not a forecast.
The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).
Rough cost (estimate): about US$971–US$1,870 each
about US$971–US$1,870 each · 6 nights, 2 sharing: flights, taxi, stay, food, board and wetsuit.
Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to IOS, estimated from distance and season, changing at GRU, full-service airlines, with a hold bag | about US$543–US$1,130 |
| Taxi | airport and back, shared | about US$20–US$33 |
| Stay | 6 nights, a mid-range double, shared | about US$174–US$295 |
| Food | 7 days eating out | about US$161–US$295 |
| Board and wetsuit | 5 days, or about US$114 to fly your own | about US$74–US$121 |
| Total | about US$971–US$1,870 |
For 2 people sharing a room. Lessons, lift-pass deals and insurance are extra. Prices from public sources, checked in 2026.
Where to stay: Ilhéus
Ad Links marked Ad may pay us if you book. You pay the same, and they never change a score. How we earn
about 15 min by car · 33 places to stay
about US$67/nightcountry average
About Ilhéus its beds, food and every spot near it
About US$67 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
Getting there: about 20h 45m
About 20h 45m door to door from Chicago
Fly ORD → IOS, changing at São Paulo/Guarulhos–Governor André Franco Montoro International Airport (GRU), then 30 min by road
Flights ORD → IOS on your dates · AviasalesAdeSIM for your phone · Search on AiraloAd
An estimate, one way; the journey never changes the score.
Saved: this link opens the same trip
The link holds the trip itself: nothing about you is kept. Check the forecast again before you book.