Arizona weather in September

In September, Arizona sees average daytime highs of 29°C and overnight lows near 25°C, with 194 mm of rain across 27.2 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 12% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Arizona's 11th-clearest and 12th-windiest month. For the whole year in context, see Arizona's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
25°
11th coldest
Rainfall
194 mm
27.2 wet days
Daylight
12 h 06 min
5:41 AM – 5:46 PM
Cloud cover
72%
11th clearest
Wind
7 km/h
12th windiest
Solar energy
5.64 kWh/m²
Travel score
3.4
out of 10

Arizona is human settlement in Honduras.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical September day in Arizona reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262825
272825
282824
292824
302824

How September really feels in Arizona

Once humidity and wind are folded in, September averages 28 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
28
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Arizona weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 21°2141611.26.2
Feb26° / 22°1139.911.56.9
Mar27° / 22°93811.97.3
Apr28° / 24°517.812.36.7
May29° / 25°1051612.74.9
Jun29° / 25°14423.412.93.7
Jul28° / 25°13023.612.84.0
Aug29° / 25°13825.712.53.7
Sep29° / 25°19427.212.13.4
Oct28° / 24°31925.411.64.0
Nov26° / 23°3762211.34.8
Dec25° / 22°21317.811.15.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33565
43565
53466
63466
73367
83367
93466
103367
113367
123367
133268
143268
153268
163268
173268
183169
193169
203070
213070
223070
232971
242971
252872
262872
272773
282773
292674
302674

Chance of precipitation in September

Any precipitation

Arizona gets around 194 mm of rain over 27.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 90% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
188
288
389
489
589
690
790
890
990
1090
1190
1290
1390
1490
1590
1690
1790
1890
1990
2091
2191
2291
2391
2491
2591
2691
2791
2890
2990
3089

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the oppressive band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
106634
206634
306535
406535
506436
606436
706436
806337
906337
1006436
1106436
1206436
1306436
1406436
1506535
1606535
1706535
1806634
1906634
2006733
2106733
2206832
2306931
2407030
2507129
2607228
2717227
2817227
2917326
3017425

Wind in September

Winds average 7 km/h in September, the calmest month.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 5:40 AM to 5:42 AM, and sunset from 5:58 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:405:58
212.35:405:57
312.35:405:57
412.35:405:56
512.25:405:55
612.25:405:54
712.25:405:54
812.25:405:53
912.25:405:52
1012.25:415:51
1112.25:415:50
1212.15:415:49
1312.15:415:49
1412.15:415:48
1512.15:415:47
1612.15:415:46
1712.15:415:45
1812.15:415:45
1912.05:415:44
2012.05:415:43
2112.05:415:42
2212.05:415:41
2312.05:425:40
2412.05:425:40
2512.05:425:39
2611.95:425:38
2711.95:425:37
2811.95:425:36
2911.95:425:36
3011.95:425:35

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.64 kWh/m².

For context, solar energy here swings from a low near 4.03 kWh/m² to a high of 6.64 kWh/m² in April across the year — September's 5.64 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
36.0Bright
46.0Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.6Bright
195.5Bright
205.5Bright
215.5Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.2Bright
305.1Bright
Planning a trip in September

Hazard calendar for Arizona

In seasonPeak

In September, Arizona sits inside its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.

Arizona sits in the Atlantic hurricane belt; the season peaks August–October.

Arizona's rainy season runs September–January, when most of the year's rain falls.

Atlantic hurricane
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Arizona?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.4
Sightseeing
12th-best month of the year
4.1
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Arizona.

What to pack for Arizona in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Arizona sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Arizona in September

The nearest coast averages about 30°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 28 km away) is warmest in September at about 30°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Arizona in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arizona peaks around April 9 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 9UV 13Dec 16UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Arizona in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Arizona is worst in April — around 36 µg/m³ PM2.5 (poor), about 5.3× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 2035 µg/m³Dec 207 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar12Good
Apr36Poor
May29Moderate
Jun25Moderate
Jul28Moderate
Aug20Moderate
Sep15Moderate
Oct12Good
Nov8Good
Dec7Good
Location & terrain

Where is Arizona?

Arizona sits at 15.6°N, 87.3°W, 72 m above sea level, in Honduras. The nearest listed city is Tela, 22 km away.

El NegritoEl ProgresoYoroLa CeibaYoritoLa LimaCholoma

Topography around Arizona

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arizona.

Within 3 km, the terrain around Arizona has only modest variations in elevation — a maximum elevation change of 165 m around an average of 59 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,871 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,401 m.

The land around Arizona is covered by trees (74%) and grassland (21%) within 3 km, trees (76%) and grassland (22%) within 16 km, and trees (51%) and water (32%) within 80 km.

3 km
165 m
16 km
1,871 m
80 km
2,401 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Tela 22 km · El Negrito 54 km · El Progreso 58 km · Yoro 59 km · La Ceiba 59 km · Yorito 63 km · La Lima 68 km · Choloma 68 km

Honduras travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$3,598
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
66%
of population, 2024
Homicide rate
31.4
per 100k, 2023
Road deaths
16.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 553
Religion
Evangelical 55%Roman Catholic 33%none 10%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Arizona (15.6333°, -87.3167°, elevation 72 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).