San Bartolo - Derechitas Surf Break

Lat Long: 12.39° S 76.78° W

San Bartolo - Derechitas Surf Forecast and Surf Report

Issued: 6 am 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's San Bartolo - Derechitas sea temperature is
21.3° C
4.9° 

San Bartolo - Derechitas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


San Bartolo - Derechitas surf forecast from 6 Aug 2026:

  • Best quality surf: Monday 10 Aug, 7AM (local time) - 4.5ft (1.3m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Tuesday 11 Aug, 4AM (local time) - 6ft (1.9m), 15s period, SSW swell with 1,652 kJ wave energy.
  • Next surfable swell (1★+): Saturday 8 Aug, 4AM (local time) - 3.5ft (1.1m), 13s period with SW swell.

Best Forecast Surf Conditions for San Bartolo - Derechitas this week:

The surf forecast for San Bartolo - Derechitas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 08) at 4AM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 1.3m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at San Bartolo - Derechitas in the next 16 days are 1.9m 15s and forecast to arrive on Tuesday (Aug 11) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 10s period and expected on Friday (Aug 07) at 4AM.

Wave TypeTime (-05) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 8th Aug)3.5ft (1.1m) 13s
Best Surf 7AM (Mon 10th Aug)4.5ft (1.3m) 14s
Most Powerful 4AM (Tue 11th Aug)6ft (1.9m) 15s

Table - best surf conditions forecast for San Bartolo - Derechitas over the next 16 days.


The Lowdown

Alright, let’s get this out there. The next couple of weeks are looking a bit ordinary, to be honest. We’ve got a run of small, cross-onshore surf that’s going to keep things grovelly and a little bumpy. Nothing on the horizon screams “drop everything and go,” but there might be a couple of windows where it cleans up enough to be worth a paddle.

The first few days, from Thursday the 6th through the weekend, are pretty uninspiring. The swell is small, mostly around the 3ft mark, with a light cross-onshore breeze. The water is a warm 70°, which is a whopping 9° warmer than normal for this time of year – that’s wild, really unusual. The wave energy is moderate, but the wind keeps it from being clean. It’s not going to be a total washout, but you’ll be hunting for the better lines.

The following week, starting Monday the 10th and running through to about Thursday the 14th, sees a bit more size push through, with some sets reaching 5ft. The period is decent, around 13-15 seconds, which gives it a bit more push. However, the wind remains a persistent cross-onshore, so the surface will stay a little lumpy. The standout here is looking like the morning of Friday the 14th. The swell is 5ft from the SW, with a 16-second period, and the wind is light and offshore from the WSW. That’s our best chance for the cleanest, most lined-up waves this week. It won’t be perfect, but it’ll be the most fun you’ll have.

The period from the 15th to the 21st is more of the same; small, choppy, and generally unremarkable. There is a brief pulse of short-period swell on Monday the 17th, with 6ft but only an 8-second period, which usually means it’ll be a bit soft and messy. The wind is offshore, though, so it might be worth a look if you’re desperate, but it’s not going to be great. The energy is moderate, and the swell direction is a bit south, which isn't ideal for this spot.

To be honest, if you’re an absolute beginner, the waves are mostly small enough to be manageable, but the chop will make it tricky. When it pushes over 5ft, like on Tuesday the 11th, it might be too much for the less experienced. The spot is fairly consistent, so there’s always something, but it’s not going to be a classic stretch. The bigger picture looks like a long period of mediocrity. Keep your expectations low, and you might get a fun one in the right bank.

Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Fri morning, min 18°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Tue morning, min 18°C on Sun night). Wind will be generally light.

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
3
1
2
2
2
2
2
1
1
2
2
2
3
2
2
2
3
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SW
17
1.5
SW
16
1.5
SW
16
1.4
SW
14
1.3
SW
14
1.1
SW
13
1
SW
13
0.9
SW
13
1.3
S
8
1.3
S
9
0.9
SSW
15
1.1
SSW
15
1.3
SSW
14
1.5
SSW
13
1.6
SSW
13
1.1
SSW
15
1.7
SSW
14
1.6
SSW
13
1.6
S
13
1.1
SSW
12
1.1
S
12
Wave Graph
Metric surfscale
Energy kJ
587
1109
1068
833
667
458
326
238
208
257
382
530
653
817
888
537
1127
823
878
392
347
Wind (km/h)
10
SW
10
SSW
10
S
10
SW
10
SSW
5
S
10
SW
10
SW
10
SSW
10
SW
10
SSW
5
SSW
10
SSW
15
SSW
10
S
15
SSW
15
SSW
10
SSE
10
SSW
10
SSW
10
S
Wind State
cross-on
cross-on
cross
on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
High Tide
10:20AM0.62m
00:52AM0.72m
11:25AM0.56m
2:08AM0.79m
12:52PM0.52m
3:13AM0.87m
2:18PM0.51m
4:08AM0.95m
3:31PM0.54m
4:57AM1.02m
4:33PM0.58m
5:42AM1.06m
5:28PM0.62m
Low Tide
5:22PM0.18m
7:14AM0.47m
6:29PM0.15m
8:57AM0.43m
7:40PM0.12m
10:02AM0.36m
8:46PM0.07m
10:52AM0.30m
9:43PM0.02m
11:35AM0.25m
10:36PM0.00m
12:16PM0.21m
11:25PM0.01m
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:22
6:22
6:22
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
6:00
6:01
6:01
6:01
 mm
Temp °C
21
20
19
22
21
18
22
21
19
21
20
18
21
21
19
22
22
19
22
20
19
Feels °C
20
20
19
21
21
19
21
21
20
20
20
19
21
21
19
22
22
19
22
20
20
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the San Bartolo - Derechitas Surf forecast

The above surf forecast table for San Bartolo - Derechitas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at San Bartolo - Derechitas can be found by selecting the local surf guide option on the grey menu. Our San Bartolo - Derechitas surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (San Bartolo - Derechitas) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for San Bartolo - Derechitas may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

San Bartolo - Derechitas is 34 km (21 miles) from the very large city of Mala. If you plan a holiday in Lima, look for hotels and other accommodation in Mala. Mala has rooms for a wide range of budgets as well as cheap car hire and transport links.

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