Edison, United States — Weather in August 2026

Climate Overview

Edison, United States in August has hot conditions, with highs reaching 28.6°C (83°F) and afternoons the warmest part of the day. Rain falls on about 11 days this month.

This month falls at the end of Summer.

Temperatures remain fairly steady throughout August, with daily highs around 29°C (84°F).

August sees fairly even rainfall, totalling about 103 mm across the month.

Expect around 10.8h of sunshine at the start of August, decreasing to 9.7h by the end.

The warmest days tend to fall around the 11th, averaging 29.7°C (85°F).

Compared to July, this month is about 2°C cooler with 3 fewer rainy days. Temperatures begin dropping heading into September.

Monthly August Averages

Temperature

29°C / 20°C

Feels Like

31°C / 22°C

Rain

11 days · 102 mm

Sunshine

10.3h / day

Humidity

73% — Muggy

Wind

13 km/h

Wind Direction

WSW (252°)

Gusts

32 km/h

Daylight

13.7 h

Cloud Cover

57%

Clear Sky Days

3.6

UV Index

6.6 — High

Dew Point

19°C — Humid

Moon Phase

Waxing Crescent · 3%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:10

Daylight 13.8h

Sunset 19:58

What to Expect

Daytime temperatures around 29°C (83°F) are ideal for full-day outdoor exploration.

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

1 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	5°C / -2°C	1°C / -7°C	9days (85 mm) Wet	6h Fair	67% Muggy	2.4 Moderate	Poor	View Details
February	7°C / -1°C	4°C / -6°C	9days (91 mm) Wet	6.7h Fair	69% Muggy	3.4 Moderate	Poor	View Details
March	11°C / 2°C	8°C / -2°C	10days (103 mm) Wet	8h Good	65% Muggy	4.7 Moderate	Poor	View Details
April	17°C / 7°C	15°C / 4°C	11days (104 mm) Wet	8.7h Good	67% Muggy	5.3 High	Fair	View Details
May best	22°C / 12°C	22°C / 11°C	13days (112 mm) Wet	9.2h Good	72% Muggy	6.2 High	Excellent	View Details
June best	27°C / 17°C	29°C / 18°C	11days (88 mm) Wet	11.1h Excellent	70% Muggy	6.9 High	Excellent	View Details
July	30°C / 21°C	33°C / 24°C	14days (130 mm) Wet	11.5h Excellent	73% Muggy	7.3 Very High	Fair	View Details
August best	29°C / 20°C	31°C / 22°C	11days (102 mm) Wet	10.3h Excellent	73% Muggy	6.6 High	Excellent	View Details
September best	25°C / 17°C	26°C / 17°C	9days (91 mm) Wet	8.5h Good	74% Muggy	5 Moderate	Excellent	View Details
October best	19°C / 11°C	18°C / 10°C	8days (99 mm) Wet	7.3h Good	73% Muggy	4.2 Moderate	Good	View Details
November	12°C / 4°C	10°C / 1°C	8days (75 mm) Wet	7h Good	69% Muggy	2.9 Moderate	Fair	View Details
December	7°C / 0°C	3°C / -4°C	10days (102 mm) Wet	5.7h Fair	72% Muggy	2.1 Moderate	Poor	View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

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 August a good time to visit Edison?

August is typically excellent for visiting Edison, with average highs of 29°C (83°F) and around 11 rainy days. Edison, United States in August has hot conditions, with highs reaching 28.6°C (83°F) and afternoons the warmest part of

Does it rain a lot in Edison in August?

Edison typically sees around 11 rainy days in August with 102 mm (4 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Edison in August?

Nights stay pleasantly warm in Edison during August, around 20°C (68°F). Light evening wear is sufficient.

What should I pack for Edison in August?

With highs of 29°C (83°F) and lows of 20°C (68°F) in August, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.

Is August among the best months weather-wise in Edison?

Yes, August offers some of the best weather conditions in Edison with comfortable temperatures and lower chances of rain.

What is the UV index in Edison in August?

The average UV index in Edison during August is 7 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Edison in August?

Edison gets approximately 14 hours of daylight per day in August, with around 10 hours of sunshine.

Does it snow in Edison in August?

Snow is uncommon in Edison during August based on 10-year climate averages.

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