Cai Lậy in Fall

In fall (September, October and November), Cai Lậy sees average daytime highs around 31°C and overnight lows near 25°C, with 714 mm of rain over about 71 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.

Across fall, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 7% of the time across fall, and the air most often feels miserable.

Fall is Cai Lậy's 3rd-best season to visit on our travel score. For the whole year in context, see Cai Lậy's year-round climate.

Avg daytime high: 31°C; 3rd-warmest season
Avg overnight low: 25°C
Rainfall: 714 mm; 71 wet days
Avg wind: 7 km/h
Travel score: 2.8; 3rd-best season
Months: Sep · Oct · Nov

← Summer Cai Lậy year-round climate Winter →

Spring Summer Fall Winter

Temperature in Cai Lậy in Fall

Average highAverage lowShaded bands: 10–90% of days

Across fall, daytime highs hold fairly steady around 31°C.

A typical fall day in Cai Lậy reaches about 31°C and drops to 25°C overnight. The warmest of the three months is September, the coolest November.

How fall really feels in Cai Lậy

Once humidity and wind are folded in, fall brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

47 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

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

Cai Lậy weather by month

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	31° / 23°	27	4.2	11.5	5.1
Feb	32° / 23°	11	1.7	11.7	4.8
Mar	33° / 25°	30	5.4	11.9	3.7
Apr	34° / 26°	75	12.2	12.2	2.7
May	33° / 26°	177	24.2	12.5	2.2
Jun	32° / 26°	215	26.3	12.6	2.4
Jul	31° / 25°	233	27.8	12.5	2.5
Aug	31° / 25°	252	28.7	12.3	2.4
Sep	31° / 25°	281	27.9	12.1	2.3
Oct	31° / 25°	291	26.8	11.8	2.6
Nov	31° / 24°	141	16.4	11.5	3.5
Dec	31° / 23°	67	9.2	11.4	4.5

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time across fall.

Chance of precipitation in Fall

Any precipitation

Cai Lậy gets around 714 mm of rain over 71 wet days across fall. The line is the day-by-day chance of measurable precipitation.

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Fall

Winds average 7 km/h across fall.

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 12 min in early September to 11 h 24 min by late November. The lit band spans sunrise to sunset each day.

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 4.4 kWh/m².

Planning a trip in fall

Hazard calendar for Cai Lậy

In seasonPeak

In fall, Cai Lậy overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Cai Lậy sits in the Pacific typhoon belt; the season peaks July–October.

Cai Lậy's rainy season runs May–November, when most of the year's rain falls.

Pacific typhoon

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is fall a good time to visit Cai Lậy?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

2.8

Sightseeing

3rd-best month of the year

4.3

Beach & pool

3rd-best month of the year

fall is a weaker month for outdoor sightseeing in Cai Lậy.

What to pack for Cai Lậy in Fall

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

In fall, Cai Lậy sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 71 days see rain.

light clothesrain gearsun protection

UV index in Cai Lậy in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cai Lậy peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 20 at about 9 (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)	9	11	13	13	12	11	12	13	13	9	9	9
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high

	UV index (midday)	Level
Jan	9	Very high
Feb	11	Extreme
Mar	13	Extreme
Apr	13	Extreme
May	12	Extreme
Jun	11	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	9	Very high
Nov	9	Very high
Dec	9	Very high

Air quality in Cai Lậy in Fall

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Cai Lậy is worst in January — around 72 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (August, 30 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)	72	59	53	53	47	38	34	30	40	56	68	70
Level	Unhealthy	Unhealthy	Poor	Poor	Poor	Poor	Moderate	Moderate	Poor	Unhealthy	Unhealthy	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	72	Unhealthy
Feb	59	Unhealthy
Mar	53	Poor
Apr	53	Poor
May	47	Poor
Jun	38	Poor
Jul	34	Moderate
Aug	30	Moderate
Sep	40	Poor
Oct	56	Unhealthy
Nov	68	Unhealthy
Dec	70	Unhealthy

Location & terrain

Where is Cai Lậy?

Cai Lậy sits at 10.4°N, 106.1°E, 3 m above sea level, in Vietnam. The nearest listed city is Vĩnh Long, 23 km away.

Topography around Cai Lậy

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

Within 3 km, the terrain around Cai Lậy has only modest variations in elevation — a maximum elevation change of 11 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 16 m; within 80 km, only modest variations in elevation — a maximum elevation change of 34 m.

The land around Cai Lậy is covered by trees (78%) within 3 km, trees (61%) and cropland (29%) within 16 km, and cropland (48%) and trees (35%) within 80 km.

3 km

11 m

trees 78%

16 km

16 m

trees 61%

80 km

34 m

cropland 48%

treesgrasslandcroplandartificial surfaceswatermangroves

← Summer Cai Lậy year-round climate Winter →

Fall weather nearby: Vĩnh Long 23 km · Mỹ Tho 27 km · Bến Tre 33 km · Tân An 36 km · Sa Dec 41 km · Quận Đức Thịnh 43 km · Bình Minh 49 km · Cao Lãnh 53 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 Cai Lậy (10.4°, 106.1167°, elevation 3 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.