Thomazeau weather in September

In September, Thomazeau sees average daytime highs of 31°C and overnight lows near 22°C, with 107 mm of rain across 17.4 wet days and about 12.1 hours of daylight. It is the 4th-warmest and 2nd-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 18% 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 54 min by month's end. Set against the rest of the year, September is Thomazeau's 12th-clearest and 11th-windiest month. For the whole year in context, see Thomazeau's year-round climate.

Daytime high
31°
4th warmest
Overnight low
22°
10th coldest
Rainfall
107 mm
17.4 wet days
Daylight
12 h 06 min
5:40 AM – 5:46 PM
Cloud cover
65%
12th clearest
Wind
4 km/h
11th windiest
Solar energy
5.75 kWh/m²
Travel score
3.7
out of 10

Thomazeau is human settlement in Thomazeau, Haiti.

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 Thomazeau reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°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)
13122
23122
33122
43122
53122
63122
73122
83122
93122
103122
113122
123122
133122
143122
153122
163122
173122
183122
193122
203122
213122
223122
233122
243122
253022
263022
273022
283022
293021
303021

How September really feels in Thomazeau

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.

Thomazeau weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°102.2117.3
Feb29° / 18°12311.46.8
Mar29° / 19°315.511.96.2
Apr29° / 20°729.712.45.4
May30° / 21°12115.212.94.5
Jun31° / 22°5710.313.14.4
Jul32° / 22°449.5134.1
Aug32° / 22°8212.912.63.7
Sep31° / 22°10717.412.13.7
Oct30° / 21°10716.211.64.4
Nov29° / 20°448.411.16.0
Dec28° / 18°132.610.97.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 28% of September, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34753
44654
54753
64852
74852
84753
94753
104753
114753
124753
134852
144852
154852
164852
174753
184753
194654
204654
214555
224456
234357
244357
254258
264258
274258
284357
294258
304258

Chance of precipitation in September

Any precipitation

Thomazeau gets around 107 mm of rain over 17.4 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 58% and peaks near 60% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
156
256
356
456
556
656
756
856
957
1057
1157
1258
1358
1458
1558
1659
1759
1859
1959
2059
2160
2260
2360
2459
2559
2659
2758
2858
2958
3057

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 72% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
177122
277122
377122
477122
567222
667123
767123
867123
967123
1067123
1167123
1267123
1367123
1467123
1567123
1657223
1757223
1857223
1957223
2057223
2157223
2257223
2357322
2457322
2557421
2657421
2757421
2857520
2947620
3047620

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 5:37 AM to 5:42 AM, and sunset from 5:59 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:375:59
212.45:375:58
312.35:375:58
412.35:375:57
512.35:385:56
612.35:385:55
712.35:385:54
812.25:385:53
912.25:385:52
1012.25:395:51
1112.25:395:50
1212.25:395:49
1312.25:395:49
1412.15:395:48
1512.15:395:47
1612.15:405:46
1712.15:405:45
1812.15:405:44
1912.05:405:43
2012.05:405:42
2112.05:405:41
2212.05:415:40
2312.05:415:39
2412.05:415:39
2511.95:415:38
2611.95:415:37
2711.95:425:36
2811.95:425:35
2911.95:425:34
3011.95:425:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.75 kWh/m².

For context, solar energy here swings from a low near 4.47 kWh/m² to a high of 6.62 kWh/m² in July across the year — September's 5.75 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.7Bright
185.7Bright
195.7Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in September

Hazard calendar for Thomazeau

In seasonPeak

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

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

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

Is September a good time to visit Thomazeau?

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

3.7
Sightseeing
11th-best month of the year
5.4
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Thomazeau.

What to pack for Thomazeau in September

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

In September, Thomazeau sees daytime highs around 31°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Thomazeau 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 30 km away) is warmest in September at about 30°C and coldest in February near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Thomazeau 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 Thomazeau peaks around June 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 14UV 12Dec 14UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Thomazeau 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 Thomazeau is worst in June — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2233 µg/m³Mar 2222 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb24Moderate
Mar22Moderate
Apr22Moderate
May25Moderate
Jun34Moderate
Jul33Moderate
Aug29Moderate
Sep26Moderate
Oct31Moderate
Nov31Moderate
Dec31Moderate
Location & terrain

Where is Thomazeau?

Thomazeau sits at 18.7°N, 72.1°W, 46 m above sea level, in Haiti. The nearest listed city is Croix-des-Bouquets, 16 km away.

Fond ParisienDelmasPétionvillePort-au-PrinceKenscoffCarrefourArcahaie

Topography around Thomazeau

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

Within 3 km, the terrain around Thomazeau has large variations in elevation — a maximum elevation change of 649 m around an average of 93 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,346 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,681 m.

The land around Thomazeau is covered by grassland (60%) and trees (27%) within 3 km, grassland (60%) within 16 km, and grassland (49%), water (23%) and trees (21%) within 80 km.

3 km
649 m
16 km
1,346 m
80 km
2,681 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Croix-des-Bouquets 16 km · Fond Parisien 20 km · Delmas 25 km · Pétionville 26 km · Port-au-Prince 29 km · Kenscoff 30 km · Carrefour 35 km · Arcahaie 46 km

Haiti travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / B
110 V · 60 Hz
Prices
≈ 86% of US
price level, 2025
GDP per capita
$2,694
2025
Happiness
3.6 / 10
World Happiness, 2020
Homicide rate
41.2
per 100k, 2023
Road deaths
18.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 444
Religion
Catholic 55%Protestant 29%none 10%other 5%

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 Thomazeau (18.653°, -72.0939°, elevation 46 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).