Saint-Michel de l'Atalaye weather in September

In September, Saint-Michel de l'Atalaye sees average daytime highs of 30°C and overnight lows near 21°C, with 182 mm of rain across 24.2 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 30°C through the month. The sky is clear or mostly clear about 12% 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 48 min by month's end. Set against the rest of the year, September is Saint-Michel de l'Atalaye's 12th-clearest and 12th-windiest month. For the whole year in context, see Saint-Michel de l'Atalaye's year-round climate.

Daytime high
30°
4th warmest
Overnight low
21°
9th coldest
Rainfall
182 mm
24.2 wet days
Daylight
12 h 06 min
5:40 AM – 5:47 PM
Cloud cover
68%
12th clearest
Wind
5 km/h
12th windiest
Solar energy
5.96 kWh/m²
Travel score
3.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Saint-Michel de l'Atalaye reaches about 30°C in the afternoon and slips back to 21°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 31°C. Set against its neighbours, September runs about 1°C cooler than August and about 1°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13021
23021
33021
43021
53021
63021
73021
83021
93021
103021
113021
123021
133021
143021
153021
163021
173021
183021
193021
203021
213021
223021
233021
243021
253021
263021
273021
283021
293021
303021

How September really feels in Saint-Michel de l'Atalaye

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.

Saint-Michel de l'Atalaye 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° / 17°195.6117.3
Feb28° / 17°225.811.36.6
Mar29° / 18°468.411.95.9
Apr29° / 19°11114.412.44.9
May29° / 20°21120.812.94.0
Jun30° / 21°13819.413.13.7
Jul31° / 21°1182013.13.6
Aug31° / 21°14322.512.73.3
Sep30° / 21°18224.212.13.3
Oct29° / 20°15122.411.63.9
Nov28° / 19°7414.411.15.6
Dec28° / 17°23610.97.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 26% of September, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23961
33961
43961
53961
63961
73961
83961
93961
103961
113763
123763
133862
143862
153961
163961
173961
183961
194060
204060
214060
223961
233961
243862
253961
263961
273961
283862
293862
303961

Chance of precipitation in September

Any precipitation

Saint-Michel de l'Atalaye gets around 182 mm of rain over 24.2 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 81% and peaks near 84% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
180
279
379
478
578
678
777
877
978
1078
1178
1279
1380
1480
1581
1682
1782
1883
1983
2084
2184
2284
2384
2483
2583
2682
2781
2881
2980
3080

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 68% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
12773
22773
32773
42674
52674
62674
72773
82773
92872
102872
112971
123070
133070
143169
153169
163268
173367
183367
193466
203565
213565
223664
233664
243763
253763
263763
273763
283763
293862
303862

Wind in September

Winds average 5 km/h in September, the calmest month.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over September. Sunrise moves from 5:37 AM to 5:43 AM, and sunset from 6:01 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:376:01
212.45:386:00
312.45:385:59
412.35:385:58
512.35:385:57
612.35:385:56
712.35:395:55
812.35:395:54
912.25:395:53
1012.25:395:53
1112.25:395:52
1212.25:405:51
1312.25:405:50
1412.15:405:49
1512.15:405:48
1612.15:405:47
1712.15:415:46
1812.15:415:45
1912.15:415:44
2012.05:415:43
2112.05:415:42
2212.05:425:41
2312.05:425:40
2412.05:425:39
2511.95:425:39
2611.95:425:38
2711.95:435:37
2811.95:435:36
2911.95:435:35
3011.85:435:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.96 kWh/m².

For context, solar energy here swings from a low near 4.47 kWh/m² to a high of 6.75 kWh/m² in July across the year — September's 5.96 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.0Intense
136.0Intense
146.0Intense
156.0Bright
166.0Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.6Bright
305.6Bright
Planning a trip in September

Hazard calendar for Saint-Michel de l'Atalaye

In seasonPeak

In September, Saint-Michel de l'Atalaye sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Saint-Michel de l'Atalaye 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 Saint-Michel de l'Atalaye?

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

3.3
Sightseeing
11th-best month of the year
4.5
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Saint-Michel de l'Atalaye.

What to pack for Saint-Michel de l'Atalaye in September

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

In September, Saint-Michel de l'Atalaye sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Saint-Michel de l'Atalaye in September

The nearest coast averages about 29°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 56 km away) 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.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May28Warm
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Saint-Michel de l'Atalaye in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint-Michel de l'Atalaye peaks around March 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highHighMar 21UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov7Very high
Dec7High

Air quality in Saint-Michel de l'Atalaye 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 Saint-Michel de l'Atalaye is worst in June — around 32 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (February, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2031 µg/m³Feb 2218 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb18Moderate
Mar18Moderate
Apr19Moderate
May24Moderate
Jun32Moderate
Jul30Moderate
Aug27Moderate
Sep24Moderate
Oct25Moderate
Nov22Moderate
Dec20Moderate
Location & terrain

Where is Saint-Michel de l'Atalaye?

Saint-Michel de l'Atalaye sits at 19.4°N, 72.3°W, 430 m above sea level, in Haiti. The nearest listed city is Saint-Raphaël, 16 km away.

DessalinesLenbeGonaïvesVerrettesDésarmesHincheCap-Haïtien

Topography around Saint-Michel de l'Atalaye

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Michel de l'Atalaye.

Within 3 km, the terrain around Saint-Michel de l'Atalaye has only modest variations in elevation — a maximum elevation change of 207 m around an average of 433 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,228 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,768 m.

The land around Saint-Michel de l'Atalaye is covered by grassland (80%) within 3 km, grassland (86%) within 16 km, and grassland (43%), water (30%) and trees (20%) within 80 km.

3 km
207 m
16 km
1,228 m
80 km
1,768 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Saint-Raphaël 16 km · Dessalines 23 km · Lenbe 38 km · Gonaïves 38 km · Verrettes 38 km · Désarmes 42 km · Hinche 42 km · Cap-Haïtien 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 Saint-Michel de l'Atalaye (19.3708°, -72.3347°, elevation 430 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).