Mandeville weather in September

In September, Mandeville sees average daytime highs of 31°C and overnight lows near 24°C, with 114 mm of rain across 18.4 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 19% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Mandeville's 12th-clearest and 10th-windiest month. For the whole year in context, see Mandeville's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
24°
10th coldest
Rainfall
114 mm
18.4 wet days
Daylight
12 h 06 min
6:01 AM – 6:07 PM
Cloud cover
66%
12th clearest
Wind
7 km/h
10th windiest
Solar energy
5.74 kWh/m²
Travel score
3.4
out of 10

Mandeville is town in Jamaica.

Founded
1816

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 31°C through the month.

A typical September day in Mandeville reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, September runs about 1°C cooler than August and about 1°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124

How September really feels in Mandeville

Once humidity and wind are folded in, September averages 30 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
30
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.

Mandeville weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°123.4116.6
Feb29° / 21°174.911.46.3
Mar30° / 21°30711.95.8
Apr30° / 22°519.712.45.1
May30° / 23°11116.512.84.2
Jun31° / 24°5911.613.14.1
Jul32° / 24°5511.8133.8
Aug32° / 24°8015.312.63.5
Sep31° / 24°11418.412.13.4
Oct30° / 23°11419.511.63.8
Nov30° / 23°549.811.25.2
Dec29° / 22°223.810.96.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
24159
34159
44159
54159
64258
74258
84159
94258
104258
114258
124258
134258
144258
154060
164060
174060
184060
193961
203961
213862
223862
233763
243763
253664
263664
273664
283664
293763
303763

Chance of precipitation in September

Any precipitation

Mandeville gets around 114 mm of rain over 18.4 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 62% and peaks near 64% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
157
257
357
457
557
658
758
859
959
1060
1161
1261
1362
1462
1563
1663
1763
1863
1964
2064
2164
2264
2364
2464
2564
2664
2764
2864
2964
3064

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 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
111863
212853
312853
412853
512853
612853
712853
812853
912853
1012853
1111863
1211863
1311863
1411863
1510873
1610873
1710873
1810873
199883
209883
219883
229883
238893
248893
258893
268893
278893
288893
298893
307903

Wind in September

Winds average 7 km/h in September.

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
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 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 30 minutes over September. Sunrise moves from 5:59 AM to 6:04 AM, and sunset from 6:20 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:596:20
212.35:596:20
312.35:596:19
412.35:596:18
512.36:006:17
612.36:006:16
712.36:006:15
812.26:006:14
912.26:006:14
1012.26:006:13
1112.26:016:12
1212.26:016:11
1312.26:016:10
1412.16:016:09
1512.16:016:08
1612.16:016:07
1712.16:016:06
1812.16:026:06
1912.06:026:05
2012.06:026:04
2112.06:026:03
2212.06:026:02
2312.06:026:01
2412.06:036:00
2511.96:035:59
2611.96:035:58
2711.96:035:58
2811.96:035:57
2911.96:035:56
3011.96:045:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.74 kWh/m².

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 6.64 kWh/m² in July across the year — September's 5.74 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Intense
56.0Intense
66.0Intense
76.0Bright
86.0Bright
96.0Bright
105.9Bright
115.9Bright
125.9Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.7Bright
185.7Bright
195.6Bright
205.6Bright
215.6Bright
225.5Bright
235.5Bright
245.4Bright
255.4Bright
265.4Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
Planning a trip in September

Hazard calendar for Mandeville

In seasonPeak

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

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

Mandeville's rainy season runs May–November, 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 Mandeville?

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
5.2
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Mandeville.

What to pack for Mandeville in September

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

In September, Mandeville sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Mandeville 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 22 km away) is warmest in September at about 30°C and coldest in February near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May28Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Mandeville 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 Mandeville peaks around April 19 at about 12 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 19UV 12Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Mandeville 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 Mandeville is worst in June — around 35 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (January, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2335 µg/m³Jan 1117 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb17Moderate
Mar18Moderate
Apr18Moderate
May24Moderate
Jun35Poor
Jul34Moderate
Aug29Moderate
Sep23Moderate
Oct24Moderate
Nov20Moderate
Dec17Moderate
Location & terrain

Where is Mandeville?

Mandeville sits at 18.0°N, 77.5°W, 609 m above sea level, in Jamaica. The nearest listed city is May Pen, 29 km away.

May PenOld HarbourLinsteadFalmouthSpanish TownOcho RiosBarrett TownMontego Bay

Topography around Mandeville

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

Within 3 km, the terrain around Mandeville has significant variations in elevation — a maximum elevation change of 280 m around an average of 636 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 961 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,426 m.

The land around Mandeville is covered by trees (50%), artificial surfaces (28%) and grassland (21%) within 3 km, trees (62%) and grassland (34%) within 16 km, and water (52%) and trees (38%) within 80 km.

3 km
280 m
16 km
961 m
80 km
1,426 m
treesgrasslandartificial surfaceswatermangroves
September weather nearby: May Pen 29 km · Old Harbour 44 km · Linstead 51 km · Falmouth 53 km · Spanish Town 58 km · Ocho Rios 59 km · Barrett Town 61 km · Montego Bay 65 km

Jamaica travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
110 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$8,003
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
49.4
per 100k, 2023
Road deaths
15.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 65%none 21%other 7%Roman Catholic 2%

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 Mandeville (18.0417°, -77.5071°, elevation 609 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).