Apache Junction, United States — Weather in September 2026

Climate Overview

Apache Junction, United States in September has hot conditions, with highs reaching 36.2°C (97°F) and afternoons the warmest part of the day. Temperatures drop noticeably between day and night.

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

Daily highs in September gradually drop from around 38°C (101°F) at the start to 34°C (93°F) by month's end.

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

Expect around 11.6h of sunshine at the start of September, decreasing to 10.7h by the end.

The warmest days tend to fall around the 5th, averaging 38.7°C (102°F).

Compared to August, this month is about 2°C cooler with 1 fewer rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

36°C / 23°C

Feels Like

36°C / 23°C

Rain

4 days · 25 mm

Sunshine

11.2h / day

Humidity

35% — Comfortable

Wind

13 km/h

Wind Direction

S (173°)

Gusts

34 km/h

Daylight

12.4 h

Cloud Cover

25%

Clear Sky Days

17.1

UV Index

7.4 — Very High

Dew Point

13°C — Comfortable

Moon Phase

Waxing Crescent · 11%

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 06:11

Daylight 12.4h

Sunset 18:35

What to Expect

With midday temperatures reaching 36°C (97°F), schedule outdoor activities for early morning or late afternoon. Evenings remain warm enough for comfortable outdoor dining and night markets.

Rain is uncommon in this month, so most days stay dry from morning through evening.

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

Compare Months

1days (6 mm) Excellent

1days (3 mm) Excellent

1days (4 mm) Excellent

3days (21 mm) Excellent

2days (26 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	18°C / 4°C	15°C / 1°C	5days (49 mm) Good	8.5h Good	56% Moderate	4 Moderate	Fair	View Details
February	20°C / 6°C	17°C / 3°C	4days (46 mm) Good	9.5h Good	49% Moderate	5.2 High	Fair	View Details
March	24°C / 9°C	21°C / 6°C	4days (38 mm) Good	10.5h Excellent	42% Moderate	6.4 High	Good	View Details
April best	29°C / 13°C	26°C / 10°C	1days (6 mm) Excellent	12h Excellent	24% Comfortable	7.8 Very High	Excellent	View Details
May best	33°C / 17°C	30°C / 15°C	1days (3 mm) Excellent	12.8h Excellent	20% Comfortable	8.4 Very High	Excellent	View Details
June	39°C / 24°C	37°C / 22°C	1days (4 mm) Excellent	13h Excellent	18% Comfortable	8.7 Very High	Good	View Details
July	40°C / 27°C	40°C / 28°C	6days (34 mm) Good	12.5h Excellent	33% Comfortable	8.7 Very High	Poor	View Details
August	39°C / 26°C	39°C / 28°C	5days (28 mm) Good	12.1h Excellent	38% Comfortable	8.3 Very High	Poor	View Details
September	36°C / 23°C	36°C / 23°C	4days (25 mm) Good	11.2h Excellent	35% Comfortable	7.4 Very High	Good	View Details
October best	31°C / 16°C	29°C / 14°C	3days (21 mm) Excellent	10.2h Excellent	36% Comfortable	6 High	Excellent	View Details
November	24°C / 10°C	21°C / 7°C	2days (26 mm) Excellent	9.2h Good	41% Moderate	4.5 Moderate	Good	View Details
December	19°C / 6°C	17°C / 3°C	4days (34 mm) Good	8.2h Good	54% Moderate	3.7 Moderate	Fair	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.

Packing List

Breathable clothingSunscreen (SPF 30+)Sun hatSunglassesSandals

Frequently Asked Questions

Expand all

Is September a good time to visit Apache Junction?

September is typically good for visiting Apache Junction, with average highs of 36°C (97°F) and around 4 rainy days. Apache Junction, United States in September has hot conditions, with highs reaching 36.2°C (97°F) and afternoons the war

Does it rain a lot in Apache Junction in September?

Apache Junction typically sees around 4 rainy days in September with 25 mm (1 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Apache Junction in September?

Nights stay pleasantly warm in Apache Junction during September, around 23°C (73°F). Light evening wear is sufficient.

What should I pack for Apache Junction in September?

With highs of 36°C (97°F) and lows of 23°C (73°F) in September, we recommend: Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. Comfortable walking shoes are essential.

Is September among the best months weather-wise in Apache Junction?

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

What is the UV index in Apache Junction in September?

The average UV index in Apache Junction during September 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 Apache Junction in September?

Apache Junction gets approximately 12 hours of daylight per day in September, with around 11 hours of sunshine.

Does it snow in Apache Junction in September?

Snow is uncommon in Apache Junction during September based on 10-year climate averages.

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