Weather in San Isidro

14-day forecast · updated today, Thursday, October 29, at 11:16 am (GMT+8)

Now · overcast 88 °F

Feels like: 98 °F
Low / high: 78 / 88 °F
Rain: 63% · 0.01 in
Wind: 9 mph NE

→ 29.93 inHg · steady UV 8 · high

Today in San Isidro: light drizzle, 78 °F to 88 °F, with a 63% chance of rain (0.01 in) and a gentle breeze from the northeast (9 mph). Tomorrow, light drizzle, 78 °F to 87 °F and a 59% chance of rain. The warmest day of the week is Thursday 29, at 88 °F.

Temperatures for the next 14 days

88° 78°
Today
87° 78°
Fri 30
85° 76°
Sat 31
88° 76°
Sun 1
88° 76°
Mon 2
84° 75°
Tue 3
82° 76°
Wed 4
86° 75°
Thu 5
87° 74°
Fri 6
87° 73°
Sat 7
86° 75°
Sun 8
84° 77°
Mon 9
82° 76°
Tue 10
82° 75°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light drizzle	78 / 88 °F	63% · 0.01 in	10 mph NE	0.6 ft	7:37 am · 7:08 pm	ECMWF
Fri 30	Light drizzle	78 / 87 °F	59% · 0.08 in	6 mph NE	0.1 ft	8:26 am · 7:52 pm	ECMWF
Sat 31	Drizzle	76 / 85 °F	84% · 0.15 in	10 mph NE	0.5 ft	9:24 am · 8:46 pm	ECMWF
Sun 1	Drizzle	76 / 88 °F	82% · 0.13 in	7 mph NE	0.1 ft	10:35 am · 10:00 pm	ECMWF
Mon 2	Light drizzle	76 / 88 °F	49% · 0.06 in	8 mph NE	0.3 ft	12:00 pm · 11:42 pm	ECMWF
Tue 3	Heavy drizzle	75 / 84 °F	71% · 0.32 in	7 mph NE	0.3 ft	1:19 pm	ECMWF
Wed 4	Drizzle	76 / 82 °F	37% · 0.12 in	9 mph NE	0.4 ft	1:26 am · 2:17 pm	ECMWF
Thu 5	Overcast	75 / 86 °F	33%	9 mph NE	0.3 ft	2:41 am · 3:01 pm	ECMWF
Fri 6	Overcast	74 / 87 °F	37%	9 mph NE	0.3 ft	3:38 am · 3:38 pm	ECMWF
Sat 7	Overcast	73 / 87 °F	45%	7 mph NE	1.0 ft	4:24 am · 4:11 pm	ECMWF
Sun 8	Light drizzle	75 / 86 °F	75% · 0.02 in	10 mph NE	1.4 ft	5:04 am · 4:42 pm	ECMWF
Mon 9	Drizzle	77 / 84 °F	84% · 0.12 in	11 mph NE	1.2 ft	5:41 am · 5:12 pm	ECMWF
Tue 10	Drizzle	76 / 82 °F	86% · 0.20 in	10 mph NE	1.3 ft	6:16 am · 5:41 pm	ECMWF
Wed 11	Drizzle	75 / 82 °F	88% · 0.24 in	11 mph NE	1.1 ft	6:50 am · 6:10 pm	ECMWF

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Light drizzle	Partly cloudy	Overcast	Overcast	Overcast	Overcast	Partly cloudy	Partly cloudy
Temperature	78°	78°	79°	85°	88°	86°	81°	80°
Chance of rain	63%	25%	5%	18%	45%	25%	24%	1%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	6 NE	5 NNE	5 NE	8 NE	9 NE	8 NE	6 NE	6 NE
Humidity	94%	95%	92%	74%	63%	70%	84%	86%
UV	0	0	0	5	8	2	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain tomorrow: take it with some caution.

What 4 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	88°	87°	85°	88°	88°	84°	82°
AIFS	88°	89°	86°	87°	89°	86°	87°
GFS	89°	88°	90°	89°	89°	88°	86°
ICON	89°	90°	87°	87°	84°	89°	87°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.01 in	0.08 in	0.15 in	0.13 in	0.06 in	0.32 in	0.12 in
AIFS	0.04 in	0.05 in	0.26 in	0.31 in	0.07 in	0.17 in	0.07 in
GFS	0	0.02 in	0	0.35 in	0.46 in	0.01 in	0
ICON	0	0	0.08 in	0.11 in	0	0	0
Confidence	high	medium	medium	medium	medium	low	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1020	616	1021	716	822	721	919
AIFS	10	7	8	7	9	9	9
GFS	815	813	813	813	712	918	817
ICON	1127	922	621	826	824	823	1023
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	63%	59%	84%	82%	49%	71%	37%
GFS (GEFS, 31 scenarios)	72%	48%	36%	87%	65%	68%	19%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: a bit warmer and drier.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit above +1.8 °F	Below −76%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +1.6 °F	Below −51%	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.0 °F	Below −56%	86° / 78°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.0 °F	A bit below −43%	86° / 78°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.2 °F	Below −51%	86° / 78°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +2.2 °F	A bit below −49%
December	A bit above +2.5 °F	Below −66%
January	Above +2.7 °F	Below −61%
February	Above +2.9 °F	Below −67%
March	Above +3.2 °F	Below −72%

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

San Isidro climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit San Isidro is from November to April: highs of 84 °F to 89 °F, about 18 rainy days a month and 5 hours of sunshine a day.

Typhoon season: in May and from September to December. In the last 30 years (1996–2025), 38 tropical cyclones passed within 93 mi of San Isidro, one or two a year; 21 of them with hurricane-force winds (74 mph or more). The most recent: Fengshen, in October 2025.

84° 73°

JanJ
85° 73°

FebF
87° 74°

MarM
89° 76°

AprA
91° 77°

MayM
90° 77°

JunJ
89° 76°

JulJ
89° 76°

AugA
89° 76°

SepS
88° 75°

OctO
87° 75°

NovN
85° 75°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	84°	73°	17.46 in	19	3.8	79°	4.2 ft	1
FebruaryFeb	85°	73°	12.04 in	13	4.4	79°	3.7 ft	–
MarchMar	87°	74°	10.55 in	14	5.1	80°	3.2 ft	–
AprilApr	89°	76°	5.66 in	11	6.1	82°	2.4 ft	1
MayMay	91°	77°	8.07 in	15	5.9	84°	1.8 ft	6
JuneJun	90°	77°	7.82 in	19	5.4	85°	1.6 ft	3
JulyJul	89°	76°	10.52 in	24	4.1	85°	1.7 ft	2
AugustAug	89°	76°	9.14 in	20	4.2	84°	1.8 ft	–
SeptemberSep	89°	76°	10.46 in	23	3.7	84°	1.8 ft	5
OctoberOct	88°	75°	14.11 in	24	4.5	84°	2.3 ft	6
NovemberNov	87°	75°	16.24 in	24	4.4	83°	3.1 ft	7
DecemberDec	85°	75°	25.33 in	25	3.7	81°	3.8 ft	7

Month	Water	Waves	Cyclones
Jan	79°	4.2 ft	1
Feb	79°	3.7 ft	–
Mar	80°	3.2 ft	–
Apr	82°	2.4 ft	1
May	84°	1.8 ft	6
Jun	85°	1.6 ft	3
Jul	85°	1.7 ft	2
Aug	84°	1.8 ft	–
Sep	84°	1.8 ft	5
Oct	84°	2.3 ft	6
Nov	83°	3.1 ft	7
Dec	81°	3.8 ft	7

Days: rainy days in the month. Sun: hours a day.

A normal year brings 147.40 in of rain on about 229 days and about 1,700 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now88 °Ffeels like 98 °F

Tomorrow78 / 87 °F

It's 88 °F now (feels like 98 °F). Today, 78 °F to 88 °F; tomorrow, 78 °F to 87 °F.

Chance of rain

Today 63% 0.01 in
Fri 30 59% 0.08 in
Sat 31 84% 0.15 in
Sun 1 82% 0.13 in
Mon 2 49% 0.06 in
Tue 3 71% 0.32 in
Wed 4 37% 0.12 in

Today the chance of rain reaches 63%, with 0.01 in in total. The next day with likely rain is Friday 30: 59% and 0.08 in.

Recent rain: last 24 hours, 0.07 in; last 3 days, 0.15 in; last 7 days, 1.77 in.

Humidity and dew point

Humidity64%

Dew point74 °F

Humidity is 64% now and the dew point is 74 °F. With a dew point this high, it feels muggy.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now15 migood

Clouds100%

Visibility is good now (15 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now8

Today's peak8high

Fri 30: 10 · Sat 31: 9 · Sun 1: 8

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.8029.9030.00 29.88

Steady now (−0.01 inHg in 3 hours). It barely changes over the next 48 hours. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 22

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Wed 28	Light drizzle	76 / 87 °F	0.11 in	13 mph NNE
Tue 27	Light drizzle	77 / 89 °F	0.04 in	12 mph NNE
Mon 26	Light drizzle	75 / 89 °F	0.02 in	8 mph NE
Sun 25	Heavy drizzle	76 / 87 °F	0.24 in	5 mph S
Sat 24	Showers	77 / 82 °F	1.18 in	8 mph SSW
Fri 23	Light drizzle	79 / 87 °F	0.08 in	13 mph SSW
Thu 22	Drizzle	79 / 86 °F	0.21 in	12 mph SW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Drizzle	76 / 89 °F	0.11 in	8 mph WNW
Tue 20	Light drizzle	76 / 87 °F	0.13 in	7 mph NNE
Mon 19	Light drizzle	77 / 88 °F	0.06 in	10 mph NE
Sun 18	Heavy drizzle	76 / 89 °F	0.35 in	10 mph NE
Sat 17	Heavy drizzle	76 / 87 °F	0.26 in	11 mph NE
Fri 16	Heavy drizzle	76 / 85 °F	0.18 in	10 mph NE
Thu 15	Drizzle	75 / 88 °F	0.25 in	9 mph NE
Wed 14	Light showers	76 / 86 °F	0.37 in	9 mph NE
Tue 13	Light showers	75 / 84 °F	0.40 in	6 mph NE
Mon 12	Showers	77 / 88 °F	0.70 in	7 mph NE
Sun 11	Showers	77 / 88 °F	0.64 in	8 mph NE
Sat 10	Light showers	75 / 87 °F	0.43 in	7 mph NE
Fri 9	Heavy drizzle	76 / 83 °F	0.37 in	9 mph NNE
Thu 8	Drizzle	76 / 85 °F	0.17 in	10 mph NNE
Wed 7	Drizzle	75 / 89 °F	0.11 in	4 mph NE
Tue 6	Light showers	73 / 87 °F	0.69 in	4 mph NW
Mon 5	Showers	76 / 89 °F	0.58 in	5 mph N
Sun 4	Light drizzle	75 / 89 °F	0.09 in	6 mph WNW
Sat 3	Light showers	76 / 89 °F	0.38 in	3 mph NW
Fri 2	Light drizzle	74 / 90 °F	0.07 in	4 mph N
Thu 1	Light drizzle	77 / 90 °F	0.12 in	6 mph NNE
Wed 30	Light drizzle	75 / 90 °F	0.02 in	5 mph NE
Tue 29	Light showers	76 / 89 °F	0.51 in	4 mph NW

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in San IsidroQuestions

What's the weather like today in San Isidro?

Light drizzle, from 78 °F to 88 °F, with a gentle breeze from the northeast (9 mph) and a 63% chance of rain.

Will it rain tomorrow in San Isidro?

On Friday 30 the chance of rain is 59% (0.08 in): light drizzle.

How warm will it be this week?

Between a low of 75 °F and a high of 88 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 8 (high). Sunscreen, hat and shade between 12 and 4 pm.

Is the pressure rising or falling?

It's 29.93 inHg and steady: +0.04 inHg over the last 24 hours.

When is the best time to visit San Isidro?

The best time to visit San Isidro is from November to April: highs of 84 °F to 89 °F, about 18 rainy days a month and 5 hours of sunshine a day.

What is the weather like in San Isidro in October?

In October, San Isidro normally sees highs of 88 °F and lows of 75 °F, with about 24 rainy days (14.11 in for the month) and 4 hours of sunshine a day. The sea is around 84 °F. These are 1991–2020 averages.

What are the warmest and wettest months in San Isidro?

The warmest is May, with average highs of 91 °F, and the coldest February, with lows of 73 °F. The wettest is December (25.33 in) and the driest, April.

When is typhoon season in San Isidro?

Typhoon season: in May and from September to December. In the last 30 years (1996–2025), 38 tropical cyclones passed within 93 mi of San Isidro, one or two a year; 21 of them with hurricane-force winds (74 mph or more). The most recent: Fengshen, in October 2025.

More about San Isidro today

Weather near San Isidro

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 7.4 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:16 am (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from