Best time to fish in San Isidro
Today, Thursday, October 29, 2026 · local time (GMT+8) · Bicol, Philippines Today, Thu, Oct 29 · GMT+8- High tides
- 7:37 am and 7:08 pm
- Major periods
- 12:48–2:48 am and 1:20–3:20 pm
- Solunar activity
- Medium
- Sun
- 5:37 am–5:19 pm
Today, Thursday, October 29, the best time to fish in San Isidro is 1:20 pm to 2:10 pm, with the 1:08 pm low tide, a major period and a light onshore breeze. It's a good day (8/10). Today is the best day this week.
Your day in San Isidro at a glance
The strip runs from midnight to midnight, local time. Night in gray, daylight in yellow; the blue curve is the tide; below, the solunar periods and the best windows.
Fishing forecast for the next 7 days
| Day | Rating | Best times | High tides | Moon |
|---|---|---|---|---|
| Today | 8good day | 1:20–2:10 pm12:50–2:10 am | ▲ 7:37 am ▲ 7:08 pm | Waning gibbous |
| Fri 30 | 6average day | 1:50–3:00 am12:50–2:50 pm | ▲ 8:26 am ▲ 7:52 pm | Waning gibbous |
| Sat 31 | 6average day | 4:50–5:30 pm3:00–3:50 am | ▲ 9:24 am ▲ 8:46 pm | Waning gibbous |
| Sun 1 | 5average day | 4:30–5:40 pm5:20–6:00 am | ▲ 10:35 am ▲ 10:00 pm | Waning gibbous |
| Mon 2 | 6average day | 5:20–6:10 am4:50–6:40 pm | ▲ 12:00 pm ▲ 11:42 pm | Last quarter |
| Tue 3 | 5average day | 5:40–7:30 am6:20–8:10 pm | ▲ 1:19 pm | Waning crescent |
| Wed 4 | 5average day | 6:40–8:30 am1:20–2:20 pm | ▲ 1:26 am ▲ 2:17 pm | Waning crescent |
Each day's rating comes from the tide, the solunar periods, the light and, when we have the forecast, the weather.
What can you catch in San Isidro?
Sport fishing species with the most records within about 62 mi of San Isidro: narrow-barred Spanish mackerel, cobia and dogtooth tuna.
- Narrow-barred Spanish mackerel Scomberomorus commerson · fish · 4 records Photo: Wikimedia Commons · public domain
- Cobia Rachycentron canadum · fish · 4 records Photo: Wikimedia Commons · public domain
- Dogtooth tuna Gymnosarda unicolor · fish · 3 records Photo: Diego Delso · CC BY-SA 4.0 · Wikimedia Commons
There are too few sightings here to tell in which months each species is seen most.
These are sightings and catches recorded since 1970 (reports from divers and anglers, scientific surveys and museum collections), not a promise that you will catch them. The months come from sightings only, adjusted for how many there are each month; hatched months have too few to tell.
Source: GBIF.org, which also gathers OBIS data. Only records licensed CC0 or CC BY 4.0, from 1,130 datasets (retrieved October 24, 2026). Where the data comes from
Photos: each species' image on Wikidata (Wikimedia Commons) or, if there isn't one, one from GBIF; only licences that allow this use, each with its author and licence.
How we work out the best time
We score every moment of the day, every 10 minutes, with simple rules anglers have used for decades:
- Tide: 2 to 3.5 points in the hour before and the hour after each high and low tide. Spring tides (high coefficient) score more, because the water moves faster.
- Solunar: 2.5 points in the major periods (moon overhead or underfoot) and 1.5 in the minor ones (moonrise and moonset).
- Light: 2 points at dawn and dusk, from first light to the end of the morning golden hour and from the evening golden hour to the end of twilight.
- Weather: falling pressure adds 1 point and rising pressure takes 1 away; wind takes points away from force 4 (about 12 mph), up to 5 points in a gale; waves of 1.6 ft to 4.9 ft add half a point (they stir up the water) and from 8.2 ft they take points away (up to 4).
- Best windows: the stretches of 40 minutes to 3 hours with the most points, at least an hour apart.
- Day's rating out of 10: the best window (up to 5), the moon (up to 2, near new or full moon), the tide coefficient (up to 2) and whether a solunar period lines up with sunrise or sunset (1). Without a tide, we score out of 8 and scale it to 10. Good weather adds up to 1 point and bad weather pulls it down.
Today: best window 4.1 of 5, moon 1 of 2, coefficient 2 of 2 and lineup 0 of 1; the weather adds 0.5.
It's a guide, not a guarantee: fish don't read tide tables. Always check the sea conditions and local fishing rules before you go.
Learn more
Questions about fishing in San Isidro
What's the best time to fish in San Isidro today?
1:20 pm to 2:10 pm, with the 1:08 pm low tide, a major period and a light onshore breeze. Also 12:50 am to 2:10 am and 8:00 am to 8:40 am. Today's rating: 8/10 (good day).
What about tomorrow? When's the best time to fish in San Isidro?
Tomorrow, Friday, October 30: 1:50 am to 3:00 am, with a rating of 6/10.
Which day this week is best for fishing in San Isidro?
Thursday, October 29, at 8/10. Its best window is 1:20 pm to 2:10 pm.
What can you catch in San Isidro?
Sport fishing species with the most records within about 62 mi of San Isidro: narrow-barred Spanish mackerel, cobia and dogtooth tuna. These are sightings and catches recorded in GBIF and OBIS, not a promise that you will catch them.
When are the solunar periods in San Isidro today?
Major: 12:48–2:48 am and 1:20–3:20 pm. Minor: 8:01–9:01 am and 7:38–8:38 pm. Solunar activity today: medium.
Does the tide affect fishing in San Isidro?
Yes. Today high tide is at 7:37 am and 7:08 pm and low tide at 1:11 am and 1:08 pm, with a tide coefficient of 93 (spring tides). The hours around each tide change tend to fish best, because moving water carries food.
How is the rating worked out?
From the tide, the solunar periods, the light at dawn and dusk, the moon phase and, when we have the forecast, the pressure, the wind and the waves. Each factor gives a fixed number of points and the rating sums them up out of 10.
Does it take the weather into account?
Yes. During today's best window: steady pressure (29.88 inHg), light onshore wind (8 mph) and calm sea (0.5 ft waves). Strong wind and big waves lower the rating; falling pressure raises it a little.
More about San Isidro today
Our own calculation: tide from Legazpi (TICON-4), sun and moon with astronomy-engine and, when available, weather and sea from Open-Meteo (ECMWF, NOAA GFS and Copernicus Marine, CC BY 4.0). Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data