Port Alfred weather in September

In September, Port Alfred sees average daytime highs of 20°C and overnight lows near 14°C, with 42 mm of rain across 6 wet days and about 11.8 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 42% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Port Alfred's 6th-clearest and 5th-windiest month. For the whole year in context, see Port Alfred's year-round climate.

Daytime high: 20°; 10th warmest
Overnight low: 14°; 4th coldest
Rainfall: 42 mm; 6 wet days
Daylight: 11 h 48 min; 6:13 AM – 6:01 PM
Cloud cover: 48%; 6th clearest
Wind: 17 km/h; 5th windiest
Solar energy: 4.64 kWh/m²
Travel score: 7.1; out of 10

Port Alfred is place in Eastern Cape, South Africa.

Founded: 1821

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Port Alfred year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 20°C through the month.

A typical September day in Port Alfred reaches about 20°C in the afternoon and slips back to 14°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 25°C. Set against its neighbours, September runs on par with August and on par with October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	21	21	21	21	21	21	21	21	21
Avg low (°C)	13	13	13	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14

	Avg high (°C)	Avg low (°C)
1	20	13
2	20	13
3	20	13
4	20	13
5	20	13
6	20	13
7	20	13
8	20	14
9	20	14
10	20	14
11	20	14
12	20	14
13	20	14
14	20	14
15	20	14
16	20	14
17	20	14
18	20	14
19	20	14
20	20	14
21	20	14
22	21	14
23	21	14
24	21	14
25	21	14
26	21	14
27	21	14
28	21	14
29	21	14
30	21	14

Port Alfred weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	25° / 20°	53	8.2	14	7.2
Feb	26° / 20°	56	8.6	13.2	6.9
Mar	25° / 19°	59	8.8	12.3	7.3
Apr	23° / 17°	54	7.9	11.2	7.4
May	22° / 15°	24	4.8	10.3	7.8
Jun	21° / 13°	27	4.3	9.8	7.8
Jul	20° / 12°	27	4.1	10	7.7
Aug	20° / 13°	41	6.2	10.8	7.3
Sep	20° / 14°	42	6	11.8	7.1
Oct	21° / 15°	51	8.4	12.8	6.8
Nov	22° / 17°	56	8.9	13.7	6.9
Dec	24° / 18°	58	9.4	14.2	7.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	69	67	67	66	65	64	63	63	62	62	62	60	60	60	60	59	59	59	59	59	59	59	59	57	57	57	56	56	55	55
Cloudier (%)	31	33	33	34	35	36	37	37	38	38	38	40	40	40	40	41	41	41	41	41	41	41	41	43	43	43	44	44	45	45

	Clearer (%)	Cloudier (%)
1	69	31
2	67	33
3	67	33
4	66	34
5	65	35
6	64	36
7	63	37
8	63	37
9	62	38
10	62	38
11	62	38
12	60	40
13	60	40
14	60	40
15	60	40
16	59	41
17	59	41
18	59	41
19	59	41
20	59	41
21	59	41
22	59	41
23	59	41
24	57	43
25	57	43
26	57	43
27	56	44
28	56	44
29	55	45
30	55	45

Chance of precipitation in September

Any precipitation

Port Alfred gets around 42 mm of rain over 6 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 21% and peaks near 24% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	19	19	19	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	21	21	21	22	22	23	23	24	24

	Rain chance (%)
1	19
2	19
3	19
4	20
5	20
6	20
7	20
8	20
9	20
10	20
11	20
12	20
13	20
14	20
15	20
16	20
17	20
18	20
19	20
20	20
21	20
22	21
23	21
24	21
25	22
26	22
27	23
28	23
29	24
30	24

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 66% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	76	75	75	73	73	72	72	71	70	69	69	67	67	65	65	65	63	63	63	63	62	62	61	61	60	60	58	57	57	56
Comfortable (%)	22	23	23	24	24	25	25	26	26	27	27	28	28	29	29	29	30	30	30	30	31	31	32	32	33	33	34	35	35	35
Humid (%)	2	2	2	3	3	3	3	3	4	4	4	5	5	6	6	6	7	7	7	7	7	7	7	7	7	7	8	8	8	9

	Dry (%)	Comfortable (%)	Humid (%)
1	76	22	2
2	75	23	2
3	75	23	2
4	73	24	3
5	73	24	3
6	72	25	3
7	72	25	3
8	71	26	3
9	70	26	4
10	69	27	4
11	69	27	4
12	67	28	5
13	67	28	5
14	65	29	6
15	65	29	6
16	65	29	6
17	63	30	7
18	63	30	7
19	63	30	7
20	63	30	7
21	62	31	7
22	62	31	7
23	61	32	7
24	61	32	7
25	60	33	7
26	60	33	7
27	58	34	8
28	57	35	8
29	57	35	8
30	56	35	9

Wind in September

Winds average 17 km/h in September.

Across September, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	16	16	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	16	light breeze
2	16	light breeze
3	16	light breeze
4	16	light breeze
5	16	light breeze
6	16	light breeze
7	16	light breeze
8	16	light breeze
9	16	light breeze
10	16	light breeze
11	16	light breeze
12	17	light breeze
13	17	light breeze
14	17	light breeze
15	17	light breeze
16	17	light breeze
17	17	light breeze
18	17	light breeze
19	17	light breeze
20	17	light breeze
21	17	light breeze
22	17	light breeze
23	17	light breeze
24	17	light breeze
25	17	light breeze
26	17	light breeze
27	17	light breeze
28	17	light breeze
29	17	light breeze
30	17	light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 18 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over September. Sunrise moves from 6:34 AM to 5:53 AM, and sunset from 5:50 PM to 6:11 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.3	11.3	11.3	11.4	11.4	11.4	11.5	11.5	11.5	11.6	11.6	11.7	11.7	11.7	11.8	11.8	11.8	11.9	11.9	11.9	12.0	12.0	12.0	12.1	12.1	12.2	12.2	12.2	12.3	12.3
Sunrise (AM)	6:34	6:33	6:31	6:30	6:29	6:27	6:26	6:24	6:23	6:22	6:20	6:19	6:17	6:16	6:14	6:13	6:12	6:10	6:09	6:07	6:06	6:04	6:03	6:01	6:00	5:59	5:57	5:56	5:54	5:53
Sunset (PM)	5:50	5:51	5:52	5:52	5:53	5:54	5:54	5:55	5:56	5:56	5:57	5:58	5:59	5:59	6:00	6:01	6:01	6:02	6:03	6:03	6:04	6:05	6:06	6:06	6:07	6:08	6:08	6:09	6:10	6:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.3	6:34	5:50
2	11.3	6:33	5:51
3	11.3	6:31	5:52
4	11.4	6:30	5:52
5	11.4	6:29	5:53
6	11.4	6:27	5:54
7	11.5	6:26	5:54
8	11.5	6:24	5:55
9	11.5	6:23	5:56
10	11.6	6:22	5:56
11	11.6	6:20	5:57
12	11.7	6:19	5:58
13	11.7	6:17	5:59
14	11.7	6:16	5:59
15	11.8	6:14	6:00
16	11.8	6:13	6:01
17	11.8	6:12	6:01
18	11.9	6:10	6:02
19	11.9	6:09	6:03
20	11.9	6:07	6:03
21	12.0	6:06	6:04
22	12.0	6:04	6:05
23	12.0	6:03	6:06
24	12.1	6:01	6:06
25	12.1	6:00	6:07
26	12.2	5:59	6:08
27	12.2	5:57	6:08
28	12.2	5:56	6:09
29	12.3	5:54	6:10
30	12.3	5:53	6:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.64 kWh/m².

For context, solar energy here swings from a low near 2.74 kWh/m² to a high of 6.48 kWh/m² in December across the year — September's 4.64 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	4.2	4.2	4.2	4.3	4.3	4.3	4.3	4.4	4.4	4.4	4.5	4.5	4.5	4.5	4.6	4.6	4.7	4.7	4.7	4.8	4.8	4.8	4.8	4.9	4.9	4.9	4.9	5.0	5.0	5.0
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.2	Bright
2	4.2	Bright
3	4.2	Bright
4	4.3	Bright
5	4.3	Bright
6	4.3	Bright
7	4.3	Bright
8	4.4	Bright
9	4.4	Bright
10	4.4	Bright
11	4.5	Bright
12	4.5	Bright
13	4.5	Bright
14	4.5	Bright
15	4.6	Bright
16	4.6	Bright
17	4.7	Bright
18	4.7	Bright
19	4.7	Bright
20	4.8	Bright
21	4.8	Bright
22	4.8	Bright
23	4.8	Bright
24	4.9	Bright
25	4.9	Bright
26	4.9	Bright
27	4.9	Bright
28	5.0	Bright
29	5.0	Bright
30	5.0	Bright

Planning a trip in September

Is September a good time to visit Port Alfred?

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

7.1

Sightseeing

8th-best month of the year

4.0

Beach & pool

11th-best month of the year

September is one of the better times to visit Port Alfred for general sightseeing.

What to pack for Port Alfred in September

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

In September, Port Alfred sees daytime highs around 20°C and nights near 14°C. Worth packing: sun protection. About 6 days see rain.

sun protection

Sea temperature near Port Alfred in September

The nearest coast averages about 19°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 23°C and coldest in September near 19°C.

It's comfortable for a long swim from Nov 4 to Jun 16 — about 7.4 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	22	23	22	22	21	20	19	19	19	19	21	21
Comfort	Refreshing	Refreshing	Refreshing	Refreshing	Refreshing	Refreshing	Cool	Cool	Cool	Cool	Refreshing	Refreshing

	Sea temperature (°C)	Comfort
Jan	22	Refreshing
Feb	23	Refreshing
Mar	22	Refreshing
Apr	22	Refreshing
May	21	Refreshing
Jun	20	Refreshing
Jul	19	Cool
Aug	19	Cool
Sep	19	Cool
Oct	19	Cool
Nov	21	Refreshing
Dec	21	Refreshing

UV index in Port Alfred in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port Alfred peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 3 (moderate).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	11	9	6	4	3	3	5	6	10	11	12
Level	Extreme	Extreme	Very high	High	Moderate	Moderate	Moderate	Moderate	High	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	11	Extreme
Mar	9	Very high
Apr	6	High
May	4	Moderate
Jun	3	Moderate
Jul	3	Moderate
Aug	5	Moderate
Sep	6	High
Oct	10	Very high
Nov	11	Extreme
Dec	12	Extreme

Location & terrain

Where is Port Alfred?

Port Alfred sits at 33.6°S, 26.9°E, 35 m above sea level, in South Africa. The nearest listed city is Grahamstown, 45 km away.

Topography around Port Alfred

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

Within 3 km, the terrain around Port Alfred has only modest variations in elevation — a maximum elevation change of 128 m around an average of 45 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 332 m; within 80 km, large variations in elevation — a maximum elevation change of 906 m.

The land around Port Alfred is covered by trees (39%) and grassland (28%) within 3 km, water (41%), trees (33%) and grassland (21%) within 16 km, and water (36%), grassland (31%) and trees (20%) within 80 km.

3 km

128 m

trees 39%

16 km

332 m

water 41%

80 km

906 m

water 36%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland

← August Port Alfred year-round climate October →Best places to visit in September

September weather nearby: Grahamstown 45 km · Alice 89 km · Dimbaza 89 km · Qonce 92 km · Fort Beaufort 93 km · Ndevana 95 km · Bhisho 97 km · Mdantsane 110 km

South Africa travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / M / N; 230 V · 50 Hz
Prices: ≈ 41% of US; price level, 2025
GDP per capita: $6,598; 2025
Happiness: 5.0 / 10; World Happiness, 2025
Safe drinking water: 68%; of population, 2024
Homicide rate: 43.7; per 100k, 2022
Road deaths: 22.2; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Very high; EF EPI 602
Religion

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 Port Alfred (-33.586°, 26.8833°, elevation 35 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. 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).

	Avg high (°C)	Avg low (°C)
1	20	13
2	20	13
3	20	13
4	20	13
5	20	13
6	20	13
7	20	13
8	20	14
9	20	14
10	20	14
11	20	14
12	20	14
13	20	14
14	20	14
15	20	14
16	20	14
17	20	14
18	20	14
19	20	14
20	20	14
21	20	14
22	21	14
23	21	14
24	21	14
25	21	14
26	21	14
27	21	14
28	21	14
29	21	14
30	21	14

	Clearer (%)	Cloudier (%)
1	69	31
2	67	33
3	67	33
4	66	34
5	65	35
6	64	36
7	63	37
8	63	37
9	62	38
10	62	38
11	62	38
12	60	40
13	60	40
14	60	40
15	60	40
16	59	41
17	59	41
18	59	41
19	59	41
20	59	41
21	59	41
22	59	41
23	59	41
24	57	43
25	57	43
26	57	43
27	56	44
28	56	44
29	55	45
30	55	45

	Rain chance (%)
1	19
2	19
3	19
4	20
5	20
6	20
7	20
8	20
9	20
10	20
11	20
12	20
13	20
14	20
15	20
16	20
17	20
18	20
19	20
20	20
21	20
22	21
23	21
24	21
25	22
26	22
27	23
28	23
29	24
30	24

	Dry (%)	Comfortable (%)	Humid (%)
1	76	22	2
2	75	23	2
3	75	23	2
4	73	24	3
5	73	24	3
6	72	25	3
7	72	25	3
8	71	26	3
9	70	26	4
10	69	27	4
11	69	27	4
12	67	28	5
13	67	28	5
14	65	29	6
15	65	29	6
16	65	29	6
17	63	30	7
18	63	30	7
19	63	30	7
20	63	30	7
21	62	31	7
22	62	31	7
23	61	32	7
24	61	32	7
25	60	33	7
26	60	33	7
27	58	34	8
28	57	35	8
29	57	35	8
30	56	35	9

	Avg high (°C)	Avg low (°C)
1	20	13
2	20	13
3	20	13
4	20	13
5	20	13
6	20	13
7	20	13
8	20	14
9	20	14
10	20	14
11	20	14
12	20	14
13	20	14
14	20	14
15	20	14
16	20	14
17	20	14
18	20	14
19	20	14
20	20	14
21	20	14
22	21	14
23	21	14
24	21	14
25	21	14
26	21	14
27	21	14
28	21	14
29	21	14
30	21	14

	Clearer (%)	Cloudier (%)
1	69	31
2	67	33
3	67	33
4	66	34
5	65	35
6	64	36
7	63	37
8	63	37
9	62	38
10	62	38
11	62	38
12	60	40
13	60	40
14	60	40
15	60	40
16	59	41
17	59	41
18	59	41
19	59	41
20	59	41
21	59	41
22	59	41
23	59	41
24	57	43
25	57	43
26	57	43
27	56	44
28	56	44
29	55	45
30	55	45

	Rain chance (%)
1	19
2	19
3	19
4	20
5	20
6	20
7	20
8	20
9	20
10	20
11	20
12	20
13	20
14	20
15	20
16	20
17	20
18	20
19	20
20	20
21	20
22	21
23	21
24	21
25	22
26	22
27	23
28	23
29	24
30	24

	Dry (%)	Comfortable (%)	Humid (%)
1	76	22	2
2	75	23	2
3	75	23	2
4	73	24	3
5	73	24	3
6	72	25	3
7	72	25	3
8	71	26	3
9	70	26	4
10	69	27	4
11	69	27	4
12	67	28	5
13	67	28	5
14	65	29	6
15	65	29	6
16	65	29	6
17	63	30	7
18	63	30	7
19	63	30	7
20	63	30	7
21	62	31	7
22	62	31	7
23	61	32	7
24	61	32	7
25	60	33	7
26	60	33	7
27	58	34	8
28	57	35	8
29	57	35	8
30	56	35	9

	Avg high (°C)	Avg low (°C)
1	20	13
2	20	13
3	20	13
4	20	13
5	20	13
6	20	13
7	20	13
8	20	14
9	20	14
10	20	14
11	20	14
12	20	14
13	20	14
14	20	14
15	20	14
16	20	14
17	20	14
18	20	14
19	20	14
20	20	14
21	20	14
22	21	14
23	21	14
24	21	14
25	21	14
26	21	14
27	21	14
28	21	14
29	21	14
30	21	14

	Clearer (%)	Cloudier (%)
1	69	31
2	67	33
3	67	33
4	66	34
5	65	35
6	64	36
7	63	37
8	63	37
9	62	38
10	62	38
11	62	38
12	60	40
13	60	40
14	60	40
15	60	40
16	59	41
17	59	41
18	59	41
19	59	41
20	59	41
21	59	41
22	59	41
23	59	41
24	57	43
25	57	43
26	57	43
27	56	44
28	56	44
29	55	45
30	55	45

	Rain chance (%)
1	19
2	19
3	19
4	20
5	20
6	20
7	20
8	20
9	20
10	20
11	20
12	20
13	20
14	20
15	20
16	20
17	20
18	20
19	20
20	20
21	20
22	21
23	21
24	21
25	22
26	22
27	23
28	23
29	24
30	24

	Dry (%)	Comfortable (%)	Humid (%)
1	76	22	2
2	75	23	2
3	75	23	2
4	73	24	3
5	73	24	3
6	72	25	3
7	72	25	3
8	71	26	3
9	70	26	4
10	69	27	4
11	69	27	4
12	67	28	5
13	67	28	5
14	65	29	6
15	65	29	6
16	65	29	6
17	63	30	7
18	63	30	7
19	63	30	7
20	63	30	7
21	62	31	7
22	62	31	7
23	61	32	7
24	61	32	7
25	60	33	7
26	60	33	7
27	58	34	8
28	57	35	8
29	57	35	8
30	56	35	9