Ponta Delgada weather in September

In September, Ponta Delgada sees average daytime highs of 22°C and overnight lows near 21°C, with 58 mm of rain across 9.9 wet days and about 12.3 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Ponta Delgada's 3rd-clearest and 9th-windiest month. For the whole year in context, see Ponta Delgada's year-round climate.

Daytime high
22°
2nd warmest
Overnight low
21°
11th coldest
Rainfall
58 mm
9.9 wet days
Daylight
12 h 12 min
6:30 AM – 6:44 PM
Cloud cover
52%
3rd clearest
Wind
19 km/h
9th windiest
Solar energy
4.93 kWh/m²
Travel score
6.8
out of 10

Ponta Delgada is city seat of Ponta Delgada municipality, Azores, Portugal.

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 22°C through the month.

A typical September day in Ponta Delgada reaches about 22°C in the afternoon and slips back to 21°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 23°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

15°18°20°23°25°151015202530
Avg high (°C)Avg low (°C)
12221
22221
32221
42221
52221
62221
72221
82221
92221
102221
112221
122221
132221
142221
152221
162221
172220
182220
192220
202220
212220
222220
232220
242220
252220
262120
272120
282120
292120
302120

Ponta Delgada weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 14°10213.39.74.5
Feb15° / 14°8610.610.54.4
Mar15° / 14°9712.211.74.5
Apr16° / 14°731012.94.8
May17° / 16°649.3145.6
Jun19° / 18°406.914.66.6
Jul21° / 20°184.714.37.6
Aug23° / 21°346.213.57.6
Sep22° / 21°589.912.36.8
Oct20° / 19°10813.9115.8
Nov18° / 17°8210.8105.6
Dec17° / 15°14414.79.44.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16931
26931
36832
46832
56733
66634
76535
86535
96337
106337
116238
126238
136238
146139
156040
166040
175941
185941
195941
205941
215941
225941
235941
245941
255842
265842
275842
285743
295743
305644

Chance of precipitation in September

Any precipitation

Ponta Delgada gets around 58 mm of rain over 9.9 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
128
229
330
430
531
632
733
833
933
1034
1134
1234
1334
1434
1533
1633
1733
1832
1932
2032
2132
2232
2332
2433
2533
2633
2734
2834
2935
3036

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 37% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
111238436
211338426
311339425
411339415
521439405
621440405
721540395
821640385
921640374
1021740364
1131840364
1231840354
1331940344
1442040334
1542040324
1642140314
1742240314
1852240303
1952340303
2052340293
2152340293
2252440293
2352440293
2452440292
2552441282
2652441282
2752541272
2852541272
2952541272
3062541262

Wind in September

Winds average 19 km/h in September.

Across September, daily wind ranges from about 17 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
117light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1920light breeze
2020light breeze
2120light breeze
2220light breeze
2320light breeze
2420breezy
2520breezy
2620breezy
2720breezy
2821breezy
2921breezy
3021breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over September. Sunrise moves from 6:17 AM to 6:42 AM, and sunset from 7:08 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:177:08
212.86:187:06
312.86:197:05
412.76:197:03
512.76:207:02
612.76:217:00
712.66:226:59
812.66:236:57
912.56:246:55
1012.56:256:54
1112.46:256:52
1212.46:266:51
1312.46:276:49
1412.36:286:47
1512.36:296:46
1612.26:306:44
1712.26:316:43
1812.26:326:41
1912.16:326:39
2012.16:336:38
2112.06:346:36
2212.06:356:34
2311.96:366:33
2411.96:376:31
2511.96:386:30
2611.86:396:28
2711.86:406:26
2811.76:406:25
2911.76:416:23
3011.76:426:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.93 kWh/m².

For context, solar energy here swings from a low near 1.91 kWh/m² to a high of 6.83 kWh/m² in July across the year — September's 4.93 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.0Bright
145.0Bright
154.9Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.5Bright
264.5Bright
274.4Bright
284.4Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Ponta Delgada

In seasonPeak

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

Ponta Delgada 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 Ponta Delgada?

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

6.8
Sightseeing
3rd-best month of the year
4.6
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Ponta Delgada for sightseeing.

What to pack for Ponta Delgada in September

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

In September, Ponta Delgada sees daytime highs around 22°C and nights near 21°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Ponta Delgada in September

The nearest coast averages about 23°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 13 km away) is warmest in August at about 23°C and coldest in March near 16°C.

It's comfortable for a long swim from Jun 23 to Nov 6 — about 4.5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar16Cool
Apr17Cool
May18Cool
Jun20Cool
Jul22Refreshing
Aug23Refreshing
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec18Cool

UV index in Ponta Delgada in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ponta Delgada peaks around August 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 10UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar6High
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct5High
Nov3Moderate
Dec2Low
Location & terrain

Where is Ponta Delgada?

Ponta Delgada sits at 37.7°N, 25.7°W, 12 m above sea level, in Portugal. The nearest listed city is Angra do Heroísmo, 169 km away.

Angra do HeroísmoCâmara de LobosSanto AntónioFunchalSão MartinhoCaniço

Topography around Ponta Delgada

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

Within 3 km, the terrain around Ponta Delgada has only modest variations in elevation — a maximum elevation change of 228 m around an average of 38 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 937 m; within 80 km, large variations in elevation — a maximum elevation change of 1,068 m.

The land around Ponta Delgada is covered by water (48%) and artificial surfaces (21%) within 3 km, water (66%) within 16 km, and water (92%) within 80 km.

3 km
228 m
16 km
937 m
80 km
1,068 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Angra do Heroísmo 169 km · Câmara de Lobos 971 km · Santo António 973 km · Funchal 974 km · São Martinho 974 km · Caniço 981 km · Los Llanos de Aridane 1,240 km · Santa Cruz de la Palma 1,246 km

Portugal travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$32,082
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.2
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 612
Religion
Catholic 68%not applicable 13%no religion 12%no response 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 Ponta Delgada (37.7395°, -25.6687°, 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. 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).