Primero de Enero weather in September

In September, Primero de Enero sees average daytime highs of 32°C and overnight lows near 24°C, with 155 mm of rain across 22.2 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 32°C through the month. The sky is clear or mostly clear about 21% 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 Primero de Enero's 11th-clearest and 12th-windiest month. For the whole year in context, see Primero de Enero's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
24°
10th coldest
Rainfall
155 mm
22.2 wet days
Daylight
12 h 06 min
6:04 AM – 6:12 PM
Cloud cover
66%
11th clearest
Wind
9 km/h
12th windiest
Solar energy
5.46 kWh/m²
Travel score
3.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical September day in Primero de Enero reaches about 32°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 30°C and 33°C. Set against its neighbours, September runs about 1°C cooler than August and about 2°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13225
23225
33225
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124

How September really feels in Primero de Enero

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.

Primero de Enero 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
Jan27° / 20°224.510.87.5
Feb28° / 20°223.711.27.4
Mar29° / 20°265.311.86.4
Apr30° / 22°458.512.55.2
May31° / 23°12615.5134.0
Jun32° / 24°12818.113.33.3
Jul32° / 25°8616.513.23.3
Aug33° / 25°10818.212.83.1
Sep32° / 24°15522.212.13.0
Oct30° / 24°12719.311.53.9
Nov28° / 22°5010.5116.0
Dec27° / 21°245.410.77.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24555
34555
44456
54357
64258
74258
84258
94159
104159
114159
124060
133862
143862
153961
163961
173961
183961
193961
203961
213961
223862
233862
243862
253763
263763
273763
283664
293664
303664

Chance of precipitation in September

Any precipitation

Primero de Enero gets around 155 mm of rain over 22.2 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 74% and peaks near 76% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
171
272
372
472
572
672
772
872
973
1073
1174
1274
1375
1475
1576
1676
1776
1876
1976
2076
2176
2276
2376
2476
2575
2675
2774
2874
2973
3072

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
106832
206832
306832
406832
506733
606733
706733
806634
906634
1006634
1106535
1206535
1306535
1406535
1506436
1606436
1706535
1806535
1906535
2006634
2106733
2206832
2306832
2406931
2506931
2606931
2706931
2806931
2906931
3016831

Wind in September

Winds average 9 km/h in September, the calmest month.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:00 AM to 6:08 AM, and sunset from 6:27 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:006:27
212.46:006:26
312.46:016:25
412.46:016:24
512.46:016:23
612.36:026:22
712.36:026:21
812.36:026:20
912.36:026:19
1012.36:036:18
1112.26:036:17
1212.26:036:16
1312.26:036:15
1412.26:046:14
1512.16:046:13
1612.16:046:12
1712.16:056:11
1812.16:056:10
1912.16:056:09
2012.06:056:08
2112.06:066:07
2212.06:066:06
2312.06:066:05
2412.06:076:04
2511.96:076:03
2611.96:076:02
2711.96:076:01
2811.96:086:00
2911.86:085:59
3011.86:085:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.46 kWh/m².

For context, solar energy here swings from a low near 3.65 kWh/m² to a high of 6.54 kWh/m² in July across the year — September's 5.46 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Primero de Enero

In seasonPeak

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

Primero de Enero sits in the Atlantic hurricane belt; the season peaks August–October.

Primero de Enero's rainy season runs May–October, 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 Primero de Enero?

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

3.0
Sightseeing
12th-best month of the year
4.6
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Primero de Enero.

What to pack for Primero de Enero in September

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

In September, Primero de Enero sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Primero de Enero 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 37 km away) is warmest in September at about 29°C and coldest in March 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
Jan26Warm
Feb26Warm
Mar26Warm
Apr26Warm
May27Warm
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Warm
Dec27Warm

UV index in Primero de Enero 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 Primero de Enero peaks around June 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJun 22UV 12Dec 15UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar11Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct9Very high
Nov7High
Dec6High

Air quality in Primero de Enero 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 Primero de Enero is worst in July — around 22 µg/m³ PM2.5 (moderate), about 3.9× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 922 µg/m³Dec 126 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr13Moderate
May12Moderate
Jun22Moderate
Jul22Moderate
Aug18Moderate
Sep13Moderate
Oct10Good
Nov6Good
Dec6Good
Location & terrain

Where is Primero de Enero?

Primero de Enero sits at 21.9°N, 78.4°W, 23 m above sea level, in Cuba. The nearest listed city is Morón, 27 km away.

Topography around Primero de Enero

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

Within 3 km, the terrain around Primero de Enero has only modest variations in elevation — a maximum elevation change of 22 m around an average of 20 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 285 m; within 80 km, significant variations in elevation — a maximum elevation change of 424 m.

The land around Primero de Enero is covered by cropland (36%), grassland (33%) and trees (25%) within 3 km, trees (41%) and grassland (39%) within 16 km, and water (34%), trees (27%) and grassland (27%) within 80 km.

3 km
22 m
16 km
285 m
80 km
424 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
September weather nearby: Morón 27 km · Ciro Redondo 30 km · Esmeralda 34 km · Baraguá 36 km · Ciego de Ávila 36 km · Venezuela 44 km · Florida 51 km · Chambas 57 km

Cuba travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C / L
110 V · 60 Hz
Prices
≈ 39% of US
price level, 2011
GDP per capita
$9,605
2020
Happiness
5.4 / 10
World Happiness, 2011
Homicide rate
4.5
per 100k, 2019
Road deaths
8.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 515
Religion
Christian 59%none 23%folk religion 18%

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 Primero de Enero (21.9455°, -78.4285°, elevation 23 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).