St. John's in Fall

In fall (September, October and November), St. John's sees average daytime highs around 28°C and overnight lows near 26°C, with 363 mm of rain over about 53 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.

Across fall, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 45% of the time across fall, and the air most often feels oppressive.

Fall is St. John's's weakest season of the year to visit on our travel score. St. John's has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see St. John's's year-round climate.

Avg daytime high: 28°C; 2nd-warmest season
Avg overnight low: 26°C
Rainfall: 363 mm; 53 wet days
Avg wind: 22 km/h
Travel score: 5.3; weakest season of the year
Months: Sep · Oct · Nov

← Summer St. John's year-round climate Winter →

Spring Summer Fall Winter

Temperature in St. John's in Fall

Average highAverage lowShaded bands: 10–90% of days

Across fall, daytime highs hold fairly steady around 28°C.

A typical fall day in St. John's reaches about 28°C and drops to 26°C overnight. The warmest of the three months is September, the coolest November.

How fall really feels in St. John's

Once humidity and wind are folded in, fall brings about 16 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

heat index over the day's high

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.

St. John's 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	26° / 24°	32	10	11.1	7.3
Feb	25° / 24°	21	7.1	11.4	7.7
Mar	25° / 24°	21	6.6	11.9	7.8
Apr	26° / 25°	33	8.8	12.4	7.2
May	27° / 26°	62	12.4	12.8	6.3
Jun	27° / 26°	51	12.1	13	6.1
Jul	28° / 26°	78	15.9	12.9	5.8
Aug	28° / 26°	98	17.8	12.6	5.4
Sep	28° / 26°	127	18	12.1	4.9
Oct	28° / 26°	132	18.8	11.6	5.2
Nov	27° / 26°	103	15.8	11.2	5.8
Dec	26° / 25°	58	13.3	11	6.6

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time across fall.

Chance of precipitation in Fall

Any precipitation

St. John's gets around 363 mm of rain over 53 wet days across fall. The line is the day-by-day chance of measurable precipitation.

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Fall

Winds average 22 km/h across fall.

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 18 min in early September to 11 h 06 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 5.4 kWh/m².

Planning a trip in fall

Hazard calendar for St. John's

In seasonPeak

In fall, St. John's overlaps its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.

St. John's sits in the Atlantic hurricane belt; the season peaks August–October.

St. John's's rainy season runs July–November, when most of the year's rain falls.

St. John's sees seasonal dust haze (July), heaviest in July.

Atlantic hurricane

Rainy season

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is fall a good time to visit St. John's?

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.

5.3

Sightseeing

4th-best month of the year

5.7

Beach & pool

4th-best month of the year

fall is a reasonable time to visit St. John's for sightseeing.

What to pack for St. John's in Fall

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

In fall, St. John's sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 53 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near St. John's in Fall

The nearest coast averages about 29°C across fall — 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 29°C and coldest in February near 26°C.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	27	26	26	27	27	28	28	29	29	29	28	27
Comfort	Warm	Warm	Warm	Warm	Warm	Warm	Tropical	Tropical	Tropical	Tropical	Tropical	Warm

	Sea temperature (°C)	Comfort
Jan	27	Warm
Feb	26	Warm
Mar	26	Warm
Apr	27	Warm
May	27	Warm
Jun	28	Warm
Jul	28	Tropical
Aug	29	Tropical
Sep	29	Tropical
Oct	29	Tropical
Nov	28	Tropical
Dec	27	Warm

UV index in St. John's 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 St. John's peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (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)	8	11	13	13	12	12	12	11	12	10	8	7
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	8	Very high
Feb	11	Extreme
Mar	13	Extreme
Apr	13	Extreme
May	12	Extreme
Jun	12	Extreme
Jul	12	Extreme
Aug	11	Extreme
Sep	12	Extreme
Oct	10	Extreme
Nov	8	Very high
Dec	7	Very high

Air quality in St. John's 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 St. John's is worst in July — around 24 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (December, 8 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)	8	10	9	11	14	24	24	20	16	17	11	8
Level	Good	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	8	Good
Feb	10	Good
Mar	9	Good
Apr	11	Good
May	14	Moderate
Jun	24	Moderate
Jul	24	Moderate
Aug	20	Moderate
Sep	16	Moderate
Oct	17	Moderate
Nov	11	Good
Dec	8	Good

Location & terrain

Where is St. John's?

St. John's sits at 17.1°N, 61.8°W, 12 m above sea level, in Antigua and Barbuda. The nearest listed city is Falmouth, 12 km away.

Topography around St. John's

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of St. John's.

Within 3 km, the terrain around St. John's has only modest variations in elevation — a maximum elevation change of 109 m around an average of 20 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 391 m; within 80 km, large variations in elevation — a maximum elevation change of 1,011 m.

The land around St. John's is covered by artificial surfaces (35%) and trees (31%) within 3 km, water (69%) within 16 km, and water (96%) within 80 km.

3 km

109 m

artificial surfaces 35%

16 km

391 m

water 69%

80 km

1,011 m

water 96%

treesgrasslandcroplandartificial surfaceswaterwetland

← Summer St. John's year-round climate Winter →

Fall weather nearby: Falmouth 12 km · English Harbour 14 km · Brades 54 km · Codrington 58 km · Plymouth 61 km · Sainte-Rose 89 km · Basseterre 96 km · Baie-Mahault 99 km

Antigua and Barbuda travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B; 230 V · 60 Hz
Prices: ≈ 69% of US; price level, 2025
GDP per capita: $24,819; 2025
Homicide rate: 10.7; per 100k, 2023
Road deaths: 0; 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 St. John's (17.121°, -61.8433°, elevation 12 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.