San Antonio, United States — Weather in June 2026

Climate Overview

San Antonio, United States in June has hot conditions, with highs reaching 34°C (93°F) and afternoons the warmest part of the day. Rain falls on about 10 days this month. Temperatures drop noticeably between day and night.

This month falls at the beginning of Summer. Temperatures are at their seasonal peak.

Daily highs in June gradually rise from around 32°C (90°F) at the start to 34°C (93°F) by month's end.

Rainfall is heaviest during the first third of the month, while the middle tends to be drier.

The warmest days tend to fall around the 16th, averaging 34.8°C (95°F).

Compared to May, this month is about 3°C warmer with 3 fewer rainy days.

Monthly June Averages

Temperature

34°C / 24°C

Feels Like

37°C / 27°C

Rain

10 days · 62 mm

Sunshine

12.1h / day

Humidity

68% — Muggy

Wind

18 km/h

Wind Direction

SE (135°)

Gusts

37 km/h

Daylight

14 h

Cloud Cover

49%

Clear Sky Days

3.6

UV Index

8.4 — Very High

Dew Point

22°C — Muggy

Moon Phase

New Moon · 0%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:34

Daylight 14h

Sunset 20:35

What to Expect

With midday temperatures reaching 34°C (93°F), schedule outdoor activities for early morning or late afternoon. Evenings remain warm enough for comfortable outdoor dining and night markets.

Rain usually comes in shorter passing showers rather than all-day rain.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	18°C / 7°C	16°C / 4°C	7days (49 mm) Good	7.1h Good	65% Muggy	3.8 Moderate	Fair	View Details
February	21°C / 9°C	19°C / 7°C	7days (43 mm) Good	6.9h Fair	68% Muggy	5 Moderate	Good	View Details
March best	25°C / 14°C	25°C / 12°C	8days (58 mm) Wet	8.1h Good	65% Muggy	6.3 High	Excellent	View Details
April best	28°C / 17°C	28°C / 16°C	10days (82 mm) Wet	8.9h Good	66% Muggy	7 High	Excellent	View Details
May	31°C / 21°C	33°C / 23°C	13days (108 mm) Wet	10.2h Excellent	72% Muggy	7.9 Very High	Good	View Details
June	34°C / 24°C	37°C / 27°C	10days (62 mm) Wet	12.1h Excellent	68% Muggy	8.4 Very High	Poor	View Details
July	35°C / 25°C	38°C / 29°C	8days (65 mm) Wet	12h Excellent	64% Muggy	8.3 Very High	Poor	View Details
August	36°C / 25°C	39°C / 29°C	7days (67 mm) Good	11.6h Excellent	62% Muggy	8.4 Very High	Poor	View Details
September	33°C / 23°C	35°C / 26°C	8days (73 mm) Wet	10.2h Excellent	65% Muggy	7.4 Very High	Fair	View Details
October best	29°C / 18°C	30°C / 19°C	7days (57 mm) Good	9.3h Good	63% Muggy	6.1 High	Excellent	View Details
November best	23°C / 13°C	22°C / 12°C	8days (53 mm) Wet	7.1h Good	69% Muggy	4.5 Moderate	Excellent	View Details
December	19°C / 10°C	18°C / 7°C	7days (49 mm) Good	6.4h Fair	69% Muggy	3.9 Moderate	Good	View Details

What to Wear

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool.

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is June a good time to visit San Antonio?

June is typically poor for visiting San Antonio, with average highs of 34°C (93°F) and around 10 rainy days. San Antonio, United States in June has hot conditions, with highs reaching 34°C (93°F) and afternoons the warmest part o

Does it rain a lot in San Antonio in June?

San Antonio typically sees around 10 rainy days in June with 62 mm (2.4 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in San Antonio in June?

Nights stay pleasantly warm in San Antonio during June, around 24°C (74°F). Light evening wear is sufficient.

What should I pack for San Antonio in June?

With highs of 34°C (93°F) and lows of 24°C (74°F) in June, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.

Is June among the best months weather-wise in San Antonio?

June is not the most favourable month weather-wise in San Antonio. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in San Antonio in June?

The average UV index in San Antonio during June is 8 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.

How many hours of daylight are there in San Antonio in June?

San Antonio gets approximately 14 hours of daylight per day in June, with around 12 hours of sunshine.

Does it snow in San Antonio in June?

Snow is uncommon in San Antonio during June based on 10-year climate averages.

Last updated: