This is a regional read for the whole Guatemala & El Salvador Pacific coast — global wave model only — no public buoys nearby, so treat ranges as rougher. Mornings lean toward cross-shore winds (86% of the morning windows with data). Confidence is reasonable for the first 4 days and drops to "trend only" after that.
Board ranges below are each board's full min→max spectrum from the Quivr catalog — the same chart the app draws — and "fits" counts how many of this week's half-day windows a board's wave and power windows overlap. Nothing here is a guess about a particular beach.
Estimates come from a global ocean wave model sampled offshore and translated into ranges. Actual size varies from beach to beach along this stretch; sheltered spots run smaller. Reads describe the whole coast, not one break — check wind and tide at your spot before paddling out. Reads are refreshed weekly on this page and several times a day in the Quivr app, which also matches each day against the boards in your own quiver. Notes on this week's data: The main swell comes from a direction this coast is largely shielded from. Size is a rough guess and likely smaller than open-ocean numbers suggest. The main swell arrives at an angle to this coast, so expect the smaller end of the range on most beaches.
Day by day: Sep 21–27, 2026
Morning is 6am–noon, afternoon is noon–7pm local. Words come straight from the regional read; "No data" means the wave model had no hours for that window.
| Day | Morning | Afternoon | Confidence |
|---|---|---|---|
| Mon Sep 21 | Chest- to head-high · moderate push · light wind | Chest- to head-high · moderate push · light wind | Fairly confident |
| Tue Sep 22 | Chest- to head-high · moderate push · light cross-shore wind | Chest- to head-high · moderate push · light wind | Fairly confident |
| Wed Sep 23 | Chest- to head-high · moderate push · light cross-shore wind | Chest- to head-high · moderate push · light cross-shore wind | Reasonable estimate |
| Thu Sep 24 | Chest- to head-high · moderate push · moderate cross-shore wind — some texture | Chest- to head-high · moderate push · light cross-shore wind | Reasonable estimate |
| Fri Sep 25 | Knee- to waist-high · mellow, not much push · moderate cross-shore wind — some texture | Waist- to chest-high · mellow, not much push · light cross-shore wind | Trend only |
| Sat Sep 26 | Head- to overhead · moderate push · moderate cross-shore wind — some texture | Head- to overhead · moderate push · light cross-shore wind | Rough estimate |
| Sun Sep 27 | Head- to overhead · moderate push · light cross-shore wind | Head- to overhead · moderate push · light wind | Rough estimate |
Boards that fit the Guatemala & El Salvador Pacific coast this week
| Board | Fits | Wave size | Power | Skill |
|---|---|---|---|---|
| Webber Surfboards Fatburner | 14 of 14 windows | Knee-high → double-overhead+ | Moderate | Intermediate to advanced |
| TC Surfboards Retro Single Fin | 14 of 14 windows | Knee-high → overhead | Moderate | Beginner-friendly to intermediate |
| Infinity Slinger Twin | 14 of 14 windows | Knee-high → overhead | Moderate | Intermediate to advanced |
| Kazuma Surfboards Kazuma Classic | 14 of 14 windows | Knee-high → double-overhead+ | Moderate | Beginner-friendly to intermediate |
| Channel Islands CI Mid | 14 of 14 windows | Waist-high → double-overhead+ | Moderate | Beginner-friendly to intermediate |
| Almond Surfboards Andy's Arrowhead | 14 of 14 windows | Knee-high → overhead | Soft | Beginner-friendly to advanced |
| TC Surfboards Twinnister | 14 of 14 windows | Waist-high → overhead | Moderate | Intermediate to advanced |
The picks, in order
1. Webber Surfboards Fatburner
Webber Surfboards Fatburner runs knee-high to double-overhead+; that wave window overlaps every one of the 14 half-day windows we have data for this week. Its moderate power midpoint is mellower than the week's typical push, so expect it to feel liveliest on the softer windows. A small-wave shortboard with an intermediate to advanced skill window.
Quivr catalog read: The Webber Fatburner is perfect for intermediate to advanced surfers looking for a buoyant board that excels in small to medium-sized waves.
Category: Small-wave shortboard · Swallow tail · Catalog ability: intermediate
2. TC Surfboards Retro Single Fin
TC Surfboards Retro Single Fin runs knee-high to overhead; that wave window overlaps every one of the 14 half-day windows we have data for this week. Its moderate power midpoint is mellower than the week's typical push, so expect it to feel liveliest on the softer windows. A longboard with a beginner-friendly to intermediate skill window.
Quivr catalog read: The Retro Single Fin offers a nostalgic ride reminiscent of the 70s, perfect for stylish turns in a variety of wave conditions.
Category: Longboard · Catalog ability: intermediate
3. Infinity Slinger Twin
Infinity Slinger Twin runs knee-high to overhead; that wave window overlaps every one of the 14 half-day windows we have data for this week. Its moderate power midpoint is mellower than the week's typical push, so expect it to feel liveliest on the softer windows. A small-wave shortboard with an intermediate to advanced skill window.
Quivr catalog read: The Slinger Twin offers a fast and agile ride, perfect for intermediate to advanced surfers looking to maximize their performance in small to medium waves.
Category: Small-wave shortboard · Swallow tail · Catalog ability: intermediate · 4.0★ from 1 Quivr rating
4. Kazuma Surfboards Kazuma Classic
Kazuma Surfboards Kazuma Classic runs knee-high to double-overhead+; that wave window overlaps every one of the 14 half-day windows we have data for this week. Its moderate power midpoint sits close to the week's typical push. A longboard with a beginner-friendly to intermediate skill window.
Quivr catalog read: The Kazuma Classic is perfect for surfers of all skill levels, providing a smooth ride and responsive turns.
Category: Longboard · Catalog ability: beginner
5. Channel Islands CI Mid
Channel Islands CI Mid runs waist-high to double-overhead+; that wave window overlaps every one of the 14 half-day windows we have data for this week. Its moderate power midpoint is mellower than the week's typical push, so expect it to feel liveliest on the softer windows. A midlength with a beginner-friendly to intermediate skill window.
Quivr catalog read: The CI Mid is a versatile midlength board that excels in shoulder-high to nearly double overhead waves.
Category: Midlength · Catalog ability: intermediate · 4.0★ from 1 Quivr rating
6. Almond Surfboards Andy's Arrowhead
Almond Surfboards Andy's Arrowhead runs knee-high to overhead; that wave window overlaps every one of the 14 half-day windows we have data for this week. Its soft power midpoint is mellower than the week's typical push, so expect it to feel liveliest on the softer windows. A midlength with a beginner-friendly to advanced skill window.
Quivr catalog read: The Andy's Arrowhead offers a retro speed approach that excels in critical wave conditions.
Category: Midlength · Catalog ability: intermediate · 5.0★ from 1 Quivr rating
7. TC Surfboards Twinnister
TC Surfboards Twinnister runs waist-high to overhead; that wave window overlaps every one of the 14 half-day windows we have data for this week. Its moderate power midpoint is mellower than the week's typical push, so expect it to feel liveliest on the softer windows. A twin fin with an intermediate to advanced skill window.
Quivr catalog read: The Twinnister is a high-performance twin fin that feels like a shortboard while offering the speed and maneuverability of a twin.
Category: Twin fin · Catalog ability: intermediate
Best fit by shape this week
One board per shape, chosen by how many of this week's 14 windows its wave and power windows overlap. Only shapes that overlap at least half the week are listed.
| Shape | Board | Fits | Wave size | Power |
|---|---|---|---|---|
| Shortboard | Webber Surfboards Fatburner | 14 of 14 windows | Knee-high → double-overhead+ | Moderate |
| Groveler | Webber Surfboards Fatburner | 14 of 14 windows | Knee-high → double-overhead+ | Moderate |
| Fish | TC Surfboards Uhu | 14 of 14 windows | Knee-high → overhead | Soft |
| Twin fin | TC Surfboards Twinnister | 14 of 14 windows | Waist-high → overhead | Moderate |
| Midlength | Channel Islands CI Mid | 14 of 14 windows | Waist-high → double-overhead+ | Moderate |
| Longboard | TC Surfboards Retro Single Fin | 14 of 14 windows | Knee-high → overhead | Moderate |
| Step-up | Panda Surfboards Middle Age Rage | 14 of 14 windows | Waist-high → double-overhead+ | Soft |
What this week asks of a board on the Guatemala & El Salvador Pacific coast
The week spreads from knee-high to overhead, so a single board with a wide wave window covers more sessions than a specialist. If you own two boards, split them: one for the smallest windows and one for the overhead ones.
Most windows read "moderate push" for push. A board's power midpoint tells you where it will feel alive: mellower boards on the softer windows, firmer boards when the push is there. The table shows each board's own midpoint so the call is yours.
Already own one of these?
Add it to your quiver in Quivr and the Home tab does this matching for you — every day, against your own boards, for the coast you pick. If none of your boards overlap a window, it says so rather than forcing a pick.
Shopping instead? Open two of the picks above in Compare and read the low end of the wave-size range first — on a knee-high week that decides whether a board gets used.
Compare these picks head to head
Live Quivr comparison pages for pairs in this list — same spectra, side by side:
FAQ
How big will the surf be on the Guatemala & El Salvador Pacific coast this week?
Across Sep 21–27, 2026 the regional read runs knee-high to overhead. The most size shows Sat Sep 26 morning, head- to overhead (rough estimate); the smallest window is Fri Sep 25 morning, knee- to waist-high. Confidence is reasonable for the first 4 days and drops to "trend only" after that. Sheltered beaches along this stretch run smaller than the read.
Which surfboards fit the Guatemala & El Salvador Pacific coast this week?
Fatburner, Retro Single Fin, Slinger Twin overlap the most of this week's 14 surf windows on catalog wave-size and power spectra; the shapes that fit best are small-wave shortboard, longboard and midlength. Open any of them in Quivr to see the full range chart and compare two side by side.
Which day has the most size on the Guatemala & El Salvador Pacific coast?
Sat Sep 26 morning, head- to overhead (rough estimate). Size builds Sat and eases Fri. Mornings lean toward cross-shore winds (86% of the morning windows with data).
Does this apply to my exact spot?
No single spot is named or predicted here. The read describes the Guatemala & El Salvador Pacific coast as a whole — a stretch of coast facing roughly the same direction. Estimates come from a global ocean wave model sampled offshore and translated into ranges. Actual size varies from beach to beach along this stretch; sheltered spots run smaller. Reads describe the whole coast, not one break — check wind and tide at your spot before paddling out.
How often is this page updated?
Every week, with the same seven-day regional read the Quivr app shows on its Home tab. The app refreshes several times a day and also tells you which board in your own quiver fits each day.