Grewang Beach
Yogyakarta · Indonesia
Rating right now
Grewang Beach is a S-facing sand beach on the Indonesia shoreline, opening onto the Java Sea — it catches SE–W swell, and offshore N–NE winds tidy the banks through year-round.
Today's surf at Grewang Beach
Updated 09:58 spot time
Grewang Beach surf report for Thursday 1 Oct: waves 1.5 m head high to overhead, 1.5 m SSW swell at 11.2 s. Wind up to 21 km/h SE. Water 25°C. Best surf window around 16:00 — good (4/5) with 21 km/h SE wind.
Snapshot refreshed hourly — the live hourly forecast below updates in real time.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~26.3°C (79.3°F) on average
Jan
28.7°C
83.7°F · 27.6–29.9°C
Feb
28.7°C
83.7°F · 27.5–29.9°C
Mar
28.8°C
83.8°F · 27.3–30.2°C
Apr
29.2°C
84.6°F · 28.5–30.4°C
May
28.4°C
83.1°F · 26–30.5°C
Jun
27.3°C
81.1°F · 23.8–29.6°C
Jul
25.9°C
78.6°F · 21.4–29.5°C
Aug
25.1°C
77.2°F · 21–28.9°C
Sep
25°C
77°F · 22.8–28.5°C
Oct
26.3°C
79.3°F · 23.8–29.1°C
Nov
27.9°C
82.2°F · 25.6–29.6°C
Dec
28.6°C
83.5°F · 26.6–29.7°C
25-year monthly averages from the NOAA OISST satellite record — typical range min–max, not a live reading.
Know before you go
Best swell
SE–W
Best wind
N–NE
Break type
Beach break
Best season
Year-round
Safety: Friendly by surf standards, but rip currents and drop-in etiquette still apply. Shifting sandbars create moving rip currents — learn to spot them and use them to get out back.
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