Da Lat weather in September

In September, Da Lat sees average daytime highs of 25°C and overnight lows near 18°C, with 291 mm of rain across 27.9 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Da Lat's 12th-clearest and 9th-windiest month. For the whole year in context, see Da Lat's year-round climate.

Daytime high: 25°; 5th warmest
Overnight low: 18°; 8th coldest
Rainfall: 291 mm; 27.9 wet days
Daylight: 12 h 06 min; 5:39 AM – 5:43 PM
Cloud cover: 90%; 12th clearest
Wind: 6 km/h; 9th windiest
Solar energy: 4.61 kWh/m²
Travel score: 3.7; out of 10

Da Lat is former city and capital of Lâm Đồng province.

Density: 656/km²; people per km²
Founded: 1893

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

← August Da Lat 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 25°C through the month.

A typical September day in Da Lat reaches about 25°C in the afternoon and slips back to 18°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. 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 (°C)	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25
Avg low (°C)	19	19	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18

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

Da Lat weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	23° / 15°	35	6.6	11.4	7.1
Feb	24° / 15°	25	5.4	11.6	7.6
Mar	25° / 16°	71	10.1	11.9	6.8
Apr	26° / 18°	160	17.8	12.3	5.4
May	26° / 19°	280	26.9	12.5	4.0
Jun	25° / 19°	225	26.1	12.7	3.9
Jul	25° / 19°	216	27.4	12.6	4.0
Aug	25° / 19°	236	26.8	12.4	4.0
Sep	25° / 18°	291	27.9	12.1	3.7
Oct	24° / 18°	289	26.4	11.7	4.2
Nov	23° / 17°	169	17.9	11.4	5.4
Dec	22° / 16°	109	11.9	11.3	6.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 4% of September, with mostly cloudy or overcast conditions the remaining 95%.

	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 (%)	6	6	6	6	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6
Cloudier (%)	94	94	94	94	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	94	94	94	94	94	94	94	94	94

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	5	95
11	5	95
12	5	95
13	5	95
14	5	95
15	5	95
16	5	95
17	5	95
18	5	95
19	5	95
20	5	95
21	5	95
22	6	94
23	6	94
24	6	94
25	6	94
26	6	94
27	6	94
28	6	94
29	6	94
30	6	94

Chance of precipitation in September

Any precipitation

Da Lat gets around 291 mm of rain over 27.9 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 93% and peaks near 96% on the wettest days. The odds climb toward the end of the month.

	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 (%)	90	90	90	90	90	90	90	90	90	90	91	91	92	92	92	93	93	94	94	95	95	96	96	96	96	96	96	96	96	96

	Rain chance (%)
1	90
2	90
3	90
4	90
5	90
6	90
7	90
8	90
9	90
10	90
11	91
12	91
13	92
14	92
15	92
16	93
17	93
18	94
19	94
20	95
21	95
22	96
23	96
24	96
25	96
26	96
27	96
28	96
29	96
30	96

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 77% of days. Sticky, muggy-or-worse air turns up on roughly 77% 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 (%)	23	24	24	25	25	26	26	26	26	26	25	25	24	24	23	22	22	21	20	20	19	19	19	19	19	20	20	21	22	23
Muggy (%)	77	76	76	75	75	74	74	74	74	74	75	75	76	76	77	78	78	79	80	80	81	81	81	81	81	80	80	79	78	77

	Humid (%)	Muggy (%)
1	23	77
2	24	76
3	24	76
4	25	75
5	25	75
6	26	74
7	26	74
8	26	74
9	26	74
10	26	74
11	25	75
12	25	75
13	24	76
14	24	76
15	23	77
16	22	78
17	22	78
18	21	79
19	20	80
20	20	80
21	19	81
22	19	81
23	19	81
24	19	81
25	19	81
26	20	80
27	20	80
28	21	79
29	22	78
30	23	77

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 7 km/h 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 (km/h)	7	7	7	7	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 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 18 minutes over September. Sunrise moves from 5:39 AM to 5:38 AM, and sunset from 5:53 PM to 5:33 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)	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	11.9	11.9	11.9	11.9
Sunrise (AM)	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:39	5:38	5:38	5:38	5:38	5:38	5:38	5:38	5:38	5:38	5:38	5:38
Sunset (PM)	5:53	5:52	5:52	5:51	5:50	5:50	5:49	5:48	5:47	5:47	5:46	5:45	5:45	5:44	5:43	5:43	5:42	5:41	5:40	5:40	5:39	5:38	5:38	5:37	5:36	5:35	5:35	5:34	5:33	5:33

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	5:39	5:53
2	12.2	5:39	5:52
3	12.2	5:39	5:52
4	12.2	5:39	5:51
5	12.2	5:39	5:50
6	12.2	5:39	5:50
7	12.2	5:39	5:49
8	12.2	5:39	5:48
9	12.1	5:39	5:47
10	12.1	5:39	5:47
11	12.1	5:39	5:46
12	12.1	5:39	5:45
13	12.1	5:39	5:45
14	12.1	5:39	5:44
15	12.1	5:39	5:43
16	12.1	5:39	5:43
17	12.1	5:39	5:42
18	12.0	5:39	5:41
19	12.0	5:39	5:40
20	12.0	5:38	5:40
21	12.0	5:38	5:39
22	12.0	5:38	5:38
23	12.0	5:38	5:38
24	12.0	5:38	5:37
25	12.0	5:38	5:36
26	12.0	5:38	5:35
27	11.9	5:38	5:35
28	11.9	5:38	5:34
29	11.9	5:38	5:33
30	11.9	5:38	5:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.61 kWh/m².

For context, solar energy here swings from a low near 4.14 kWh/m² to a high of 6.15 kWh/m² in March across the year — September's 4.61 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)	5.0	4.9	4.9	4.9	4.8	4.8	4.8	4.8	4.7	4.7	4.6	4.6	4.6	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.4	4.4
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.0	Bright
2	4.9	Bright
3	4.9	Bright
4	4.9	Bright
5	4.8	Bright
6	4.8	Bright
7	4.8	Bright
8	4.8	Bright
9	4.7	Bright
10	4.7	Bright
11	4.6	Bright
12	4.6	Bright
13	4.6	Bright
14	4.5	Bright
15	4.5	Bright
16	4.5	Bright
17	4.5	Bright
18	4.5	Bright
19	4.5	Bright
20	4.5	Bright
21	4.5	Bright
22	4.5	Bright
23	4.5	Bright
24	4.5	Bright
25	4.5	Bright
26	4.5	Bright
27	4.5	Bright
28	4.5	Bright
29	4.4	Bright
30	4.4	Bright

Planning a trip in September

Is September a good time to visit Da Lat?

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

3.7

Sightseeing

12th-best month of the year

3.3

Beach & pool

12th-best month of the year

September is a weaker month for outdoor sightseeing in Da Lat.

What to pack for Da Lat in September

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

In September, Da Lat sees daytime highs around 25°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 28 days see rain.

rain gearlight clothessun protection

UV index in Da Lat in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Da Lat peaks around March 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 10 (very 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)	11	13	14	14	13	12	13	14	13	12	10	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high

	UV index (midday)	Level
Jan	11	Extreme
Feb	13	Extreme
Mar	14	Extreme
Apr	14	Extreme
May	13	Extreme
Jun	12	Extreme
Jul	13	Extreme
Aug	14	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	10	Extreme
Dec	10	Very high

Air quality in Da Lat 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 Da Lat is worst in April — around 29 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 18 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	20	21	26	29	24	21	20	19	21	23	19	18
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	20	Moderate
Feb	21	Moderate
Mar	26	Moderate
Apr	29	Moderate
May	24	Moderate
Jun	21	Moderate
Jul	20	Moderate
Aug	19	Moderate
Sep	21	Moderate
Oct	23	Moderate
Nov	19	Moderate
Dec	18	Moderate

Location & terrain

Where is Da Lat?

Da Lat sits at 11.9°N, 108.4°E, 1,483 m above sea level, in Vietnam. The nearest listed city is Đưc Trọng, 25 km away.

Topography around Da Lat

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

Within 3 km, the terrain around Da Lat has only modest variations in elevation — a maximum elevation change of 189 m around an average of 1,488 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,201 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,408 m.

The land around Da Lat is covered by artificial surfaces (53%) and trees (29%) within 3 km, trees (66%) and grassland (24%) within 16 km, and trees (75%) within 80 km.

3 km

189 m

artificial surfaces 53%

16 km

1,201 m

trees 66%

80 km

2,408 m

trees 75%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

September weather nearby: Đưc Trọng 25 km · Đinh Văn 28 km · Huyện Lâm Hà 29 km · Phan Rang-Tháp Chàm 73 km · Buôn Trấp 75 km · Khánh Hải 76 km · Cam Ranh 78 km · Gia Nghĩa 82 km

Vietnam travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B / C / F; 220 V · 50 Hz
Prices: ≈ 29% of US; price level, 2025
GDP per capita: $5,066; 2025
Happiness: 6.4 / 10; World Happiness, 2025
Safe drinking water: 59%; of population, 2024
Homicide rate: 1.5; per 100k, 2011
Road deaths: 30.6; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Moderate; EF EPI 500
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 Da Lat (11.9465°, 108.4419°, elevation 1,483 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. 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).

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

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	5	95
11	5	95
12	5	95
13	5	95
14	5	95
15	5	95
16	5	95
17	5	95
18	5	95
19	5	95
20	5	95
21	5	95
22	6	94
23	6	94
24	6	94
25	6	94
26	6	94
27	6	94
28	6	94
29	6	94
30	6	94

	Rain chance (%)
1	90
2	90
3	90
4	90
5	90
6	90
7	90
8	90
9	90
10	90
11	91
12	91
13	92
14	92
15	92
16	93
17	93
18	94
19	94
20	95
21	95
22	96
23	96
24	96
25	96
26	96
27	96
28	96
29	96
30	96

	Humid (%)	Muggy (%)
1	23	77
2	24	76
3	24	76
4	25	75
5	25	75
6	26	74
7	26	74
8	26	74
9	26	74
10	26	74
11	25	75
12	25	75
13	24	76
14	24	76
15	23	77
16	22	78
17	22	78
18	21	79
19	20	80
20	20	80
21	19	81
22	19	81
23	19	81
24	19	81
25	19	81
26	20	80
27	20	80
28	21	79
29	22	78
30	23	77

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

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	5	95
11	5	95
12	5	95
13	5	95
14	5	95
15	5	95
16	5	95
17	5	95
18	5	95
19	5	95
20	5	95
21	5	95
22	6	94
23	6	94
24	6	94
25	6	94
26	6	94
27	6	94
28	6	94
29	6	94
30	6	94

	Rain chance (%)
1	90
2	90
3	90
4	90
5	90
6	90
7	90
8	90
9	90
10	90
11	91
12	91
13	92
14	92
15	92
16	93
17	93
18	94
19	94
20	95
21	95
22	96
23	96
24	96
25	96
26	96
27	96
28	96
29	96
30	96

	Humid (%)	Muggy (%)
1	23	77
2	24	76
3	24	76
4	25	75
5	25	75
6	26	74
7	26	74
8	26	74
9	26	74
10	26	74
11	25	75
12	25	75
13	24	76
14	24	76
15	23	77
16	22	78
17	22	78
18	21	79
19	20	80
20	20	80
21	19	81
22	19	81
23	19	81
24	19	81
25	19	81
26	20	80
27	20	80
28	21	79
29	22	78
30	23	77

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

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	5	95
11	5	95
12	5	95
13	5	95
14	5	95
15	5	95
16	5	95
17	5	95
18	5	95
19	5	95
20	5	95
21	5	95
22	6	94
23	6	94
24	6	94
25	6	94
26	6	94
27	6	94
28	6	94
29	6	94
30	6	94

	Rain chance (%)
1	90
2	90
3	90
4	90
5	90
6	90
7	90
8	90
9	90
10	90
11	91
12	91
13	92
14	92
15	92
16	93
17	93
18	94
19	94
20	95
21	95
22	96
23	96
24	96
25	96
26	96
27	96
28	96
29	96
30	96

	Humid (%)	Muggy (%)
1	23	77
2	24	76
3	24	76
4	25	75
5	25	75
6	26	74
7	26	74
8	26	74
9	26	74
10	26	74
11	25	75
12	25	75
13	24	76
14	24	76
15	23	77
16	22	78
17	22	78
18	21	79
19	20	80
20	20	80
21	19	81
22	19	81
23	19	81
24	19	81
25	19	81
26	20	80
27	20	80
28	21	79
29	22	78
30	23	77