Weather in San Antonio

14-day forecast · updated today, Thursday, October 29, at 2:00 am (AST)

Now · clear 77 °F

Feels like: 86 °F
Low / high: 76 / 85 °F
Rain: 89% · 0.19 in
Wind: 5 mph ESE

↘ 29.94 inHg · falling UV 9 · very high

Today in San Antonio: drizzle, 76 °F to 85 °F, with a 89% chance of rain (0.19 in) and a light breeze from the east-southeast (5 mph). Tomorrow, drizzle, 76 °F to 84 °F and a 82% chance of rain. The warmest day of the week is Thursday 29, at 85 °F.

Measured now at the airport

Aquadilla/Hernández (TJBQ), 1.9 mi away · 1 h 10 min ago

Visibility9.9 mi or more

WeatherNothing to note

Temperature77 °F

Wind3 mph from the southeast

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

85° 76°
Today
84° 76°
Fri 30
84° 74°
Sat 31
82° 77°
Sun 1
84° 76°
Mon 2
84° 76°
Tue 3
78° 77°
Wed 4
78° 76°
Thu 5
79° 76°
Fri 6
83° 76°
Sat 7
83° 77°
Sun 8
81° 77°
Mon 9
80° 77°
Tue 10
83° 76°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Drizzle	76 / 85 °F	89% · 0.19 in	6 mph E	4.1 ft	10:39 am · 10:22 pm	ECMWF
Fri 30	Drizzle	76 / 84 °F	82% · 0.09 in	7 mph E	3.0 ft	11:36 am · 11:21 pm	ECMWF
Sat 31	Heavy drizzle	74 / 84 °F	83% · 0.25 in	12 mph E	2.8 ft	12:37 pm	ECMWF
Sun 1	Drizzle	77 / 82 °F	91% · 0.11 in	13 mph E	2.6 ft	12:30 am · 1:40 pm	ECMWF
Mon 2	Light showers	76 / 84 °F	90% · 0.31 in	11 mph E	2.8 ft	1:47 am · 2:40 pm	ECMWF
Tue 3	Drizzle	76 / 84 °F	97% · 0.18 in	6 mph E	2.6 ft	3:03 am · 3:37 pm	ECMWF
Wed 4	Heavy drizzle	77 / 78 °F	91% · 0.46 in	4 mph ESE	2.6 ft	4:15 am · 4:30 pm	ECMWF
Thu 5	Heavy drizzle	76 / 78 °F	87% · 0.51 in	4 mph SE	2.1 ft	5:19 am · 5:20 pm	ECMWF
Fri 6	Drizzle	76 / 79 °F	79% · 0.38 in	5 mph S	2.6 ft	6:13 am · 6:06 pm	ECMWF
Sat 7	Light drizzle	76 / 83 °F	79% · 0.07 in	8 mph E	3.2 ft	7:00 am · 6:49 pm	ECMWF
Sun 8	Light drizzle	77 / 83 °F	57% · 0.12 in	9 mph E	3.1 ft	7:41 am · 7:30 pm	ECMWF
Mon 9	Light drizzle	77 / 81 °F	60% · 0.14 in	9 mph E	2.8 ft	8:20 am · 8:09 pm	ECMWF
Tue 10	Light drizzle	77 / 80 °F	64% · 0.12 in	6 mph ESE	2.4 ft	8:58 am · 8:46 pm	ECMWF
Wed 11	Light drizzle	76 / 83 °F	71% · 0.07 in	10 mph ESE	3.5 ft	9:36 am · 9:23 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	Partly cloudy	Clear	Clear	Mainly clear	Light drizzle	Drizzle	Drizzle	Clear
Temperature	78°	77°	77°	81°	85°	82°	77°	76°
Chance of rain	0%	0%	0%	0%	24%	89%	62%	16%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.01 in	0.02 in	0.03 in	0.00 in
Wind (mph)	5 ESE	5 ESE	3 SE	2 ENE	5 NE	1 ENE	1 W	6 ESE
Humidity	91%	93%	89%	78%	70%	76%	87%	91%
UV	0	0	0	3	9	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 on Sunday 1: 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	85°	84°	84°	82°	84°	84°	78°
AIFS	84°	84°	83°	82°	83°	85°	82°
GFS	86°	85°	87°	84°	84°	85°	85°
ICON	89°	88°	87°	86°	87°	88°	87°
Confidence	high	high	high	high	high	high	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.19 in	0.09 in	0.25 in	0.11 in	0.31 in	0.18 in	0.46 in
AIFS	0.20 in	0.13 in	0.26 in	0.38 in	0.32 in	0.18 in	0.47 in
GFS	0.11 in	0.10 in	0.17 in	0.46 in	0.21 in	0	0.01 in
ICON	0.08 in	0.16 in	0.24 in	0.45 in	0.51 in	0.06 in	0
Confidence	high	high	high	medium	medium	medium	low

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	611	718	1219	1318	1118	616	415
AIFS	5	5	9	10	9	6	2
GFS	85	99	1217	1423	915	65	86
ICON	717	816	1323	1223	718	512	816
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)	89%	82%	83%	91%	90%	97%	91%
GFS (GEFS, 31 scenarios)	100%	72%	87%	90%	84%	84%	65%

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 normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal +0.5 °F	A bit above +48%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +1.6 °F	A bit below −25%	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.3 °F	A bit above +22%	86° / 74°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.3 °F	Normal	86° / 74°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.4 °F	Normal	85° / 73°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +2.0 °F	Normal
December	A bit above +2.5 °F	Normal
January	Above +2.7 °F	Above +81%
February	Above +2.7 °F	A bit above +42%
March	A bit above +2.5 °F	Above +85%

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 Antonio climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit San Antonio is from January to March: highs of 86 °F to 87 °F, about 9 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from August to September, peaking in August. In the last 30 years (1996–2025), 17 tropical cyclones passed within 93 mi of San Antonio, about 6 every 10 years; 10 of them with hurricane-force winds (74 mph or more). The most recent: Ernesto, in August 2024.

86° 64°

JanJ
87° 64°

FebF
87° 64°

MarM
89° 66°

AprA
90° 68°

MayM
91° 69°

JunJ
91° 70°

JulJ
92° 70°

AugA
92° 70°

SepS
91° 69°

OctO
89° 68°

NovN
87° 66°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	86°	64°	2.79 in	10	6.7	80°	5.1 ft	–
FebruaryFeb	87°	64°	2.55 in	8	7.2	79°	5.1 ft	–
MarchMar	87°	64°	3.61 in	10	7.9	79°	5.1 ft	–
AprilApr	89°	66°	5.16 in	12	7.8	80°	4.2 ft	–
MayMay	90°	68°	7.46 in	18	7.5	81°	3.6 ft	–
JuneJun	91°	69°	7.50 in	17	8.2	83°	3.2 ft	–
JulyJul	91°	70°	5.94 in	18	8.2	83°	3.4 ft	1
AugustAug	92°	70°	7.54 in	22	7.8	84°	3.4 ft	9
SeptemberSep	92°	70°	8.63 in	24	7.1	84°	3.8 ft	6
OctoberOct	91°	69°	6.68 in	21	7.1	84°	4.0 ft	–
NovemberNov	89°	68°	5.59 in	19	6.4	83°	4.6 ft	–
DecemberDec	87°	66°	3.80 in	12	6.3	81°	5.1 ft	1

Month	Water	Waves	Cyclones
Jan	80°	5.1 ft	–
Feb	79°	5.1 ft	–
Mar	79°	5.1 ft	–
Apr	80°	4.2 ft	–
May	81°	3.6 ft	–
Jun	83°	3.2 ft	–
Jul	83°	3.4 ft	1
Aug	84°	3.4 ft	9
Sep	84°	3.8 ft	6
Oct	84°	4.0 ft	–
Nov	83°	4.6 ft	–
Dec	81°	5.1 ft	1

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

A normal year brings 67.24 in of rain on about 191 days and about 2,700 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

Now77 °Ffeels like 86 °F

Tomorrow76 / 84 °F

It's 77 °F now (feels like 86 °F). Today, 76 °F to 85 °F; tomorrow, 76 °F to 84 °F.

Chance of rain

Today 89% 0.19 in
Fri 30 82% 0.09 in
Sat 31 83% 0.25 in
Sun 1 91% 0.11 in
Mon 2 90% 0.31 in
Tue 3 97% 0.18 in
Wed 4 91% 0.46 in

Today the chance of rain reaches 89%, with 0.19 in in total. The next day with likely rain is Friday 30: 82% and 0.09 in.

Recent rain: last 24 hours, 0.44 in; last 3 days, 0.79 in; last 7 days, 1.00 in.

Humidity and dew point

Humidity93%

Dew point75 °F

Humidity is 93% now and the dew point is 75 °F. With a dew point this high, it feels muggy. The temperature is very close to the dew point: fog may form.

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

Clouds0%

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

Now0

Today's peak9very high

Fri 30: 8 · Sat 31: 9 · Sun 1: 6

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 Anglers expect normal activity
↘ Falling · now Anglers say fish feed more before the change

29.9030.00 30.00

Falling now (−0.04 inHg in 3 hours). It barely changes over the next 48 hours. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 12

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 showers	78 / 85 °F	0.47 in	7 mph E
Tue 27	Light showers	79 / 88 °F	0.22 in	6 mph SE
Mon 26	Drizzle	78 / 88 °F	0.09 in	6 mph ESE
Sun 25	Drizzle	78 / 89 °F	0.07 in	6 mph ESE
Sat 24	Drizzle	78 / 86 °F	0.08 in	7 mph ESE
Fri 23	Light drizzle	77 / 87 °F	0.04 in	8 mph ESE
Thu 22	Light drizzle	76 / 85 °F	0.02 in	6 mph NE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light drizzle	75 / 85 °F	0.04 in	7 mph ENE
Tue 20	Light drizzle	76 / 85 °F	0.06 in	6 mph ESE
Mon 19	Drizzle	76 / 84 °F	0.15 in	7 mph E
Sun 18	Light drizzle	77 / 84 °F	0.02 in	7 mph E
Sat 17	Drizzle	78 / 85 °F	0.14 in	10 mph E
Fri 16	Light drizzle	78 / 85 °F	0.05 in	13 mph E
Thu 15	Drizzle	78 / 85 °F	0.08 in	10 mph E
Wed 14	Light drizzle	78 / 86 °F	0.07 in	10 mph E
Tue 13	Light drizzle	76 / 84 °F	0.02 in	9 mph E
Mon 12	Drizzle	78 / 85 °F	0.14 in	11 mph E
Sun 11	Light drizzle	76 / 84 °F	0.09 in	14 mph E
Sat 10	Drizzle	79 / 85 °F	0.21 in	16 mph E
Fri 9	Light drizzle	78 / 86 °F	0.05 in	16 mph E
Thu 8	Thunderstorm	77 / 86 °F	0.43 in	9 mph E
Wed 7	Showers	78 / 85 °F	0.57 in	11 mph E
Tue 6	Light drizzle	77 / 85 °F	0.07 in	16 mph E
Mon 5	Light drizzle	76 / 85 °F	0.05 in	8 mph E
Sun 4	Light drizzle	77 / 85 °F	0.09 in	8 mph E
Sat 3	Light drizzle	77 / 85 °F	0.04 in	12 mph E
Fri 2	Light showers	77 / 86 °F	0.22 in	15 mph E
Thu 1	Showers	78 / 87 °F	0.69 in	13 mph E
Wed 30	Light drizzle	79 / 87 °F	0.07 in	17 mph E
Tue 29	Light drizzle	78 / 86 °F	0.02 in	16 mph E

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 AntonioQuestions

What's the weather like today in San Antonio?

Drizzle, from 76 °F to 85 °F, with a light breeze from the east-southeast (5 mph) and a 89% chance of rain.

Will it rain tomorrow in San Antonio?

On Friday 30 the chance of rain is 82% (0.09 in): drizzle.

How warm will it be this week?

Between a low of 74 °F and a high of 85 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 9 (very high). Avoid the midday sun; reflection off the water adds to it.

Is the pressure rising or falling?

It's 29.94 inHg and falling: −0.00 inHg over the last 24 hours.

When is the best time to visit San Antonio?

The best time to visit San Antonio is from January to March: highs of 86 °F to 87 °F, about 9 rainy days a month and 7 hours of sunshine a day.

What is the weather like in San Antonio in October?

In October, San Antonio normally sees highs of 91 °F and lows of 69 °F, with about 21 rainy days (6.68 in for the month) and 7 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 Antonio?

The warmest is August, with average highs of 92 °F, and the coldest February, with lows of 64 °F. The wettest is September (8.63 in) and the driest, February.

When is hurricane season in San Antonio?

Hurricane season: from August to September, peaking in August. In the last 30 years (1996–2025), 17 tropical cyclones passed within 93 mi of San Antonio, about 6 every 10 years; 10 of them with hurricane-force winds (74 mph or more). The most recent: Ernesto, in August 2024.

More about San Antonio today

Weather near San Antonio

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 6.5 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 2:00 am (local time).

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