Lahaina weather in September

In September, Lahaina sees average daytime highs of 80°F and overnight lows near 76°F, with 0.1 in of rain across 0.7 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 80°F through the month. The sky is clear or mostly clear about 74% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Lahaina's 1st-clearest and 10th-windiest month. For the whole year in context, see Lahaina's year-round climate.

Daytime high: 80°; 1st warmest
Overnight low: 76°; 12th coldest
Rainfall: 0.1 in; 0.7 wet days
Daylight: 12 h 06 min; 6:18 AM – 6:25 PM
Cloud cover: 30%; 1st clearest
Wind: 13 mph; 10th windiest
Solar energy: 6.41 kWh/m²
Travel score: 8.6; out of 10

Lahaina is census designated place in West Maui, Maui County, Hawaii, United States.

Density: 486/km²; people per km²

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

← August Lahaina year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 80°F through the month.

A typical September day in Lahaina reaches about 80°F in the afternoon and slips back to 76°F overnight — a 4°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 81°F. Set against its neighbours, September runs on par with August and on par with October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°F)	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80
Avg low (°F)	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76	76

	Avg high (°F)	Avg low (°F)
1	80	76
2	80	76
3	80	76
4	80	76
5	80	76
6	80	76
7	80	76
8	80	76
9	80	76
10	80	76
11	80	76
12	80	76
13	80	76
14	80	76
15	80	76
16	80	76
17	80	76
18	80	76
19	80	76
20	80	76
21	80	76
22	80	76
23	80	76
24	80	76
25	80	76
26	80	76
27	80	76
28	80	76
29	80	76
30	80	76

Lahaina weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Daylight (hours)	Travel score
Jan	74° / 71°	1.7	5.4	10.9	8.2
Feb	74° / 71°	1.1	4.2	11.3	8.2
Mar	74° / 71°	1.5	4.3	11.9	8.2
Apr	75° / 72°	0.6	2	12.5	8.6
May	77° / 73°	0.2	1.4	13	8.7
Jun	78° / 74°	0.1	0.3	13.2	8.7
Jul	79° / 75°	0.1	0.4	13.1	8.6
Aug	80° / 76°	0.2	0.8	12.7	8.5
Sep	80° / 76°	0.1	0.7	12.1	8.6
Oct	79° / 76°	0.5	1.8	11.5	8.3
Nov	77° / 74°	1.0	2.9	11	8.3
Dec	76° / 73°	1.8	4.5	10.8	8.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	87	86	87	87	87	87	87	88	88	88	87	87	87	87	87	87	87	87	86	86	85	85	84	83	82	81	81	79	79	78
Cloudier (%)	13	14	13	13	13	13	13	12	12	12	13	13	13	13	13	13	13	13	14	14	15	15	16	17	18	19	19	21	21	22

	Clearer (%)	Cloudier (%)
1	87	13
2	86	14
3	87	13
4	87	13
5	87	13
6	87	13
7	87	13
8	88	12
9	88	12
10	88	12
11	87	13
12	87	13
13	87	13
14	87	13
15	87	13
16	87	13
17	87	13
18	87	13
19	86	14
20	86	14
21	85	15
22	85	15
23	84	16
24	83	17
25	82	18
26	81	19
27	81	19
28	79	21
29	79	21
30	78	22

Chance of precipitation in September

Any precipitation

Lahaina gets around 0.1 in of rain over 0.7 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 2% and peaks near 3% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	2	2	2	2	2	2	2	2	3	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	3	3	3	3	3	3

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	3
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	3
26	3
27	3
28	3
29	3
30	3

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Humid (%)	1	0	0	0	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	3	2	2	2	2	2	2	2	2
Muggy (%)	67	69	69	69	67	67	67	67	67	67	67	67	67	66	65	65	65	65	65	65	65	64	65	65	65	64	64	64	63	63
Oppressive (%)	32	31	31	31	32	32	32	32	32	32	32	32	32	33	33	33	33	33	33	33	33	33	33	33	33	34	34	34	35	35

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	67	32
2	0	69	31
3	0	69	31
4	0	69	31
5	1	67	32
6	1	67	32
7	1	67	32
8	1	67	32
9	1	67	32
10	1	67	32
11	1	67	32
12	1	67	32
13	1	67	32
14	1	66	33
15	2	65	33
16	2	65	33
17	2	65	33
18	2	65	33
19	2	65	33
20	2	65	33
21	2	65	33
22	3	64	33
23	2	65	33
24	2	65	33
25	2	65	33
26	2	64	34
27	2	64	34
28	2	64	34
29	2	63	35
30	2	63	35

Wind in September

Winds average 13 mph in September.

Across September, daily wind ranges from about 13 mph on the calmest days to 14 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (mph)	14	14	14	14	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

	Wind speed (mph)	Feels
1	14	breezy
2	14	breezy
3	14	breezy
4	14	breezy
5	13	breezy
6	13	breezy
7	13	breezy
8	13	breezy
9	13	breezy
10	13	breezy
11	13	breezy
12	13	breezy
13	13	breezy
14	13	breezy
15	13	breezy
16	13	breezy
17	13	breezy
18	13	breezy
19	13	breezy
20	13	breezy
21	13	breezy
22	13	breezy
23	13	breezy
24	13	breezy
25	13	breezy
26	13	breezy
27	13	breezy
28	13	breezy
29	13	breezy
30	13	breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over September. Sunrise moves from 6:14 AM to 6:21 AM, and sunset from 6:39 PM to 6:11 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.4	12.4	12.4	12.4	12.3	12.3	12.3	12.3	12.3	12.2	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	11.9	11.9	11.9	11.9	11.9	11.8
Sunrise (AM)	6:14	6:14	6:14	6:15	6:15	6:15	6:15	6:16	6:16	6:16	6:16	6:17	6:17	6:17	6:17	6:18	6:18	6:18	6:18	6:18	6:19	6:19	6:19	6:19	6:20	6:20	6:20	6:21	6:21	6:21
Sunset (PM)	6:39	6:38	6:37	6:36	6:35	6:34	6:33	6:32	6:31	6:30	6:29	6:29	6:28	6:27	6:26	6:25	6:24	6:23	6:22	6:21	6:20	6:19	6:18	6:17	6:16	6:15	6:14	6:13	6:12	6:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	6:14	6:39
2	12.4	6:14	6:38
3	12.4	6:14	6:37
4	12.4	6:15	6:36
5	12.3	6:15	6:35
6	12.3	6:15	6:34
7	12.3	6:15	6:33
8	12.3	6:16	6:32
9	12.3	6:16	6:31
10	12.2	6:16	6:30
11	12.2	6:16	6:29
12	12.2	6:17	6:29
13	12.2	6:17	6:28
14	12.2	6:17	6:27
15	12.1	6:17	6:26
16	12.1	6:18	6:25
17	12.1	6:18	6:24
18	12.1	6:18	6:23
19	12.1	6:18	6:22
20	12.0	6:18	6:21
21	12.0	6:19	6:20
22	12.0	6:19	6:19
23	12.0	6:19	6:18
24	12.0	6:19	6:17
25	11.9	6:20	6:16
26	11.9	6:20	6:15
27	11.9	6:20	6:14
28	11.9	6:21	6:13
29	11.9	6:21	6:12
30	11.8	6:21	6:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.41 kWh/m².

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 7.13 kWh/m² in June across the year — September's 6.41 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	6.7	6.7	6.7	6.6	6.6	6.6	6.6	6.6	6.5	6.5	6.5	6.5	6.5	6.5	6.4	6.4	6.4	6.3	6.3	6.3	6.3	6.3	6.2	6.2	6.2	6.1	6.1	6.1	6.0	6.0
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.7	Intense
2	6.7	Intense
3	6.7	Intense
4	6.6	Intense
5	6.6	Intense
6	6.6	Intense
7	6.6	Intense
8	6.6	Intense
9	6.5	Intense
10	6.5	Intense
11	6.5	Intense
12	6.5	Intense
13	6.5	Intense
14	6.5	Intense
15	6.4	Intense
16	6.4	Intense
17	6.4	Intense
18	6.3	Intense
19	6.3	Intense
20	6.3	Intense
21	6.3	Intense
22	6.3	Intense
23	6.2	Intense
24	6.2	Intense
25	6.2	Intense
26	6.1	Intense
27	6.1	Intense
28	6.1	Intense
29	6.0	Intense
30	6.0	Intense

Planning a trip in September

Hazard calendar for Lahaina

In seasonPeak

In September, Lahaina sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.

Lahaina sits in the eastern Pacific hurricane zone; the season peaks August–September.

Pacific hurricane

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Lahaina?

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

8.6

Sightseeing

3rd-best month of the year

8.4

Beach & pool

2nd-best month of the year

September is one of the better times to visit Lahaina for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Lahaina in September

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

In September, Lahaina sees daytime highs around 80°F and nights near 76°F. Pack sun protection. Worth having: light clothes and a windbreaker.

sun protectionlight clothesa windbreaker

Sea temperature near Lahaina in September

The nearest coast averages about 80°F in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 80°F and coldest in February near 75°F.

The water stays above 68°F all year — warm enough for a swim any month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°F)	76	75	75	76	77	78	79	80	80	80	79	77
Comfort	Warm	Warm	Warm	Warm	Warm	Warm	Warm	Warm	Warm	Warm	Warm	Warm

	Sea temperature (°F)	Comfort
Jan	76	Warm
Feb	75	Warm
Mar	75	Warm
Apr	76	Warm
May	77	Warm
Jun	78	Warm
Jul	79	Warm
Aug	80	Warm
Sep	80	Warm
Oct	80	Warm
Nov	79	Warm
Dec	77	Warm

UV index in Lahaina 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 Lahaina peaks around July 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 6 (high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	7	9	10	12	10	11	12	12	12	10	7	6
Level	High	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	High	High

	UV index (midday)	Level
Jan	7	High
Feb	9	Very high
Mar	10	Extreme
Apr	12	Extreme
May	10	Extreme
Jun	11	Extreme
Jul	12	Extreme
Aug	12	Extreme
Sep	12	Extreme
Oct	10	Very high
Nov	7	High
Dec	6	High

Location & terrain

Where is Lahaina?

Lahaina sits at 20.9°N, 156.7°W, 0 ft above sea level, in United States. The nearest listed city is Wailuku, 11 mi away.

Topography around Lahaina

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Lahaina.

Within 2 miles, the terrain around Lahaina has significant variations in elevation — a maximum elevation change of 948 ft around an average of 118 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,751 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,977 ft.

The land around Lahaina is covered by water (54%) and grassland (32%) within 2 miles, water (62%) within 10 miles, and water (82%) within 50 miles.

2 miles

948 ft

water 54%

10 miles

5,751 ft

water 62%

50 miles

9,977 ft

water 82%

treesshrubsgrasslandartificial surfacesbare terrainwater

← August Lahaina year-round climate October →Best places to visit in September

September weather nearby: Wailuku 11 mi · Kahului 14 mi · Kīhei 17 mi · Hawai‘i Kai 72 mi · East Honolulu 73 mi · Niu Valley 74 mi · Kuliouou - Kalani Iki 75 mi · Kailua 78 mi

United States travel facts

Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 100% of US; price level, 2025
GDP per capita: $90,027; 2025
Happiness: 6.8 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 5.8; per 100k, 2023
Road deaths: 12.7; per 100k/yr, 2019
Income group: High; World Bank
Religion

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 Lahaina (20.8753°, -156.6798°, elevation 0 ft), 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	80	76
2	80	76
3	80	76
4	80	76
5	80	76
6	80	76
7	80	76
8	80	76
9	80	76
10	80	76
11	80	76
12	80	76
13	80	76
14	80	76
15	80	76
16	80	76
17	80	76
18	80	76
19	80	76
20	80	76
21	80	76
22	80	76
23	80	76
24	80	76
25	80	76
26	80	76
27	80	76
28	80	76
29	80	76
30	80	76

	Clearer (%)	Cloudier (%)
1	87	13
2	86	14
3	87	13
4	87	13
5	87	13
6	87	13
7	87	13
8	88	12
9	88	12
10	88	12
11	87	13
12	87	13
13	87	13
14	87	13
15	87	13
16	87	13
17	87	13
18	87	13
19	86	14
20	86	14
21	85	15
22	85	15
23	84	16
24	83	17
25	82	18
26	81	19
27	81	19
28	79	21
29	79	21
30	78	22

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	3
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	3
26	3
27	3
28	3
29	3
30	3

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	67	32
2	0	69	31
3	0	69	31
4	0	69	31
5	1	67	32
6	1	67	32
7	1	67	32
8	1	67	32
9	1	67	32
10	1	67	32
11	1	67	32
12	1	67	32
13	1	67	32
14	1	66	33
15	2	65	33
16	2	65	33
17	2	65	33
18	2	65	33
19	2	65	33
20	2	65	33
21	2	65	33
22	3	64	33
23	2	65	33
24	2	65	33
25	2	65	33
26	2	64	34
27	2	64	34
28	2	64	34
29	2	63	35
30	2	63	35

	Avg high (°F)	Avg low (°F)
1	80	76
2	80	76
3	80	76
4	80	76
5	80	76
6	80	76
7	80	76
8	80	76
9	80	76
10	80	76
11	80	76
12	80	76
13	80	76
14	80	76
15	80	76
16	80	76
17	80	76
18	80	76
19	80	76
20	80	76
21	80	76
22	80	76
23	80	76
24	80	76
25	80	76
26	80	76
27	80	76
28	80	76
29	80	76
30	80	76

	Clearer (%)	Cloudier (%)
1	87	13
2	86	14
3	87	13
4	87	13
5	87	13
6	87	13
7	87	13
8	88	12
9	88	12
10	88	12
11	87	13
12	87	13
13	87	13
14	87	13
15	87	13
16	87	13
17	87	13
18	87	13
19	86	14
20	86	14
21	85	15
22	85	15
23	84	16
24	83	17
25	82	18
26	81	19
27	81	19
28	79	21
29	79	21
30	78	22

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	3
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	3
26	3
27	3
28	3
29	3
30	3

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	67	32
2	0	69	31
3	0	69	31
4	0	69	31
5	1	67	32
6	1	67	32
7	1	67	32
8	1	67	32
9	1	67	32
10	1	67	32
11	1	67	32
12	1	67	32
13	1	67	32
14	1	66	33
15	2	65	33
16	2	65	33
17	2	65	33
18	2	65	33
19	2	65	33
20	2	65	33
21	2	65	33
22	3	64	33
23	2	65	33
24	2	65	33
25	2	65	33
26	2	64	34
27	2	64	34
28	2	64	34
29	2	63	35
30	2	63	35

	Avg high (°F)	Avg low (°F)
1	80	76
2	80	76
3	80	76
4	80	76
5	80	76
6	80	76
7	80	76
8	80	76
9	80	76
10	80	76
11	80	76
12	80	76
13	80	76
14	80	76
15	80	76
16	80	76
17	80	76
18	80	76
19	80	76
20	80	76
21	80	76
22	80	76
23	80	76
24	80	76
25	80	76
26	80	76
27	80	76
28	80	76
29	80	76
30	80	76

	Clearer (%)	Cloudier (%)
1	87	13
2	86	14
3	87	13
4	87	13
5	87	13
6	87	13
7	87	13
8	88	12
9	88	12
10	88	12
11	87	13
12	87	13
13	87	13
14	87	13
15	87	13
16	87	13
17	87	13
18	87	13
19	86	14
20	86	14
21	85	15
22	85	15
23	84	16
24	83	17
25	82	18
26	81	19
27	81	19
28	79	21
29	79	21
30	78	22

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	3
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	3
26	3
27	3
28	3
29	3
30	3

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	67	32
2	0	69	31
3	0	69	31
4	0	69	31
5	1	67	32
6	1	67	32
7	1	67	32
8	1	67	32
9	1	67	32
10	1	67	32
11	1	67	32
12	1	67	32
13	1	67	32
14	1	66	33
15	2	65	33
16	2	65	33
17	2	65	33
18	2	65	33
19	2	65	33
20	2	65	33
21	2	65	33
22	3	64	33
23	2	65	33
24	2	65	33
25	2	65	33
26	2	64	34
27	2	64	34
28	2	64	34
29	2	63	35
30	2	63	35