Napier weather in September

In September, Napier sees average daytime highs of 15°C and overnight lows near 9°C, with 62 mm of rain across 9.4 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 14°C in the first days to 15°C by the end. The sky is clear or mostly clear about 39% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of September to 12 h 24 min by month's end. Set against the rest of the year, September is Napier's 6th-clearest and 6th-windiest month. For the whole year in context, see Napier's year-round climate.

Daytime high: 15°; 9th warmest
Overnight low: 9°; 4th coldest
Rainfall: 62 mm; 9.4 wet days
Daylight: 11 h 42 min; 7:14 AM – 6:59 PM
Cloud cover: 53%; 6th clearest
Wind: 15 km/h; 6th windiest
Solar energy: 4.02 kWh/m²
Travel score: 4.6; out of 10

Napier is city in the North Island of New Zealand.

Air quality: Excellent; PM10 13.7 µg/m³ · 2012
Density: 626/km²; people per km²
Founded: 1851

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

← August Napier 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

Highs climb over the month, from about 14°C in the first days to 15°C by the end.

A typical September day in Napier reaches about 15°C in the afternoon and slips back to 9°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 18°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than 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)	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	16	16	16
Avg low (°C)	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10	10	10	10

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

Napier weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	22° / 16°	63	7.7	14.5	7.0
Feb	22° / 17°	56	8	13.6	6.8
Mar	20° / 15°	65	8.2	12.3	6.7
Apr	18° / 13°	80	8.8	11	6.1
May	16° / 11°	65	9.1	9.9	5.2
Jun	14° / 9°	79	10.1	9.3	4.1
Jul	13° / 8°	92	11.1	9.5	3.5
Aug	13° / 8°	71	10.6	10.4	3.8
Sep	15° / 9°	62	9.4	11.7	4.6
Oct	16° / 11°	63	9.3	13	5.4
Nov	18° / 13°	58	8.8	14.2	6.1
Dec	20° / 15°	58	9.3	14.7	6.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 45%.

	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 (%)	56	55	55	55	55	55	55	55	55	55	55	55	55	56	56	57	57	57	57	56	56	56	56	55	55	55	55	55	55	55
Cloudier (%)	44	45	45	45	45	45	45	45	45	45	45	45	45	44	44	43	43	43	43	44	44	44	44	45	45	45	45	45	45	45

	Clearer (%)	Cloudier (%)
1	56	44
2	55	45
3	55	45
4	55	45
5	55	45
6	55	45
7	55	45
8	55	45
9	55	45
10	55	45
11	55	45
12	55	45
13	55	45
14	56	44
15	56	44
16	57	43
17	57	43
18	57	43
19	57	43
20	56	44
21	56	44
22	56	44
23	56	44
24	55	45
25	55	45
26	55	45
27	55	45
28	55	45
29	55	45
30	55	45

Chance of precipitation in September

Any precipitation

Napier gets around 62 mm of rain over 9.4 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 31% and peaks near 32% 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 (%)	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	32	32	32	32	32	32	32	31	31	31	30

	Rain chance (%)
1	31
2	31
3	31
4	31
5	31
6	31
7	31
8	31
9	31
10	31
11	31
12	31
13	31
14	31
15	31
16	31
17	31
18	31
19	31
20	32
21	32
22	32
23	32
24	32
25	32
26	32
27	31
28	31
29	31
30	30

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 99% 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 (%)	100	100	100	100	100	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	100	100	100	100	100	99	99	99
Comfortable (%)	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	0	0	0	1	1	1

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	99	1
29	99	1
30	99	1

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 15 km/h on the calmest days to 16 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)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16
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	15	light breeze
2	15	light breeze
3	15	light breeze
4	15	light breeze
5	15	light breeze
6	15	light breeze
7	15	light breeze
8	15	light breeze
9	15	light breeze
10	15	light breeze
11	15	light breeze
12	15	light breeze
13	15	light breeze
14	15	light breeze
15	15	light breeze
16	15	light breeze
17	15	light breeze
18	15	light breeze
19	15	light breeze
20	15	light breeze
21	15	light breeze
22	15	light breeze
23	15	light breeze
24	16	light breeze
25	16	light breeze
26	16	light breeze
27	16	light breeze
28	16	light breeze
29	16	light breeze
30	16	light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 06 min at the start of September to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over September. Sunrise moves from 7:39 AM to 6:51 AM, and sunset from 6:45 PM to 7:13 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)	11.1	11.1	11.2	11.2	11.3	11.3	11.3	11.4	11.4	11.5	11.5	11.6	11.6	11.7	11.7	11.7	11.8	11.8	11.9	11.9	12.0	12.0	12.1	12.1	12.1	12.2	12.2	12.3	12.3	12.4
Sunrise (AM)	7:39	7:38	7:36	7:34	7:33	7:31	7:29	7:28	7:26	7:24	7:23	7:21	7:19	7:18	7:16	7:14	7:13	7:11	7:09	7:08	7:06	7:04	7:02	7:01	6:59	6:57	6:56	6:54	6:52	6:51
Sunset (PM)	6:45	6:46	6:47	6:48	6:49	6:50	6:50	6:51	6:52	6:53	6:54	6:55	6:56	6:57	6:58	6:59	7:00	7:01	7:02	7:03	7:04	7:05	7:06	7:07	7:08	7:09	7:10	7:11	7:12	7:13

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.1	7:39	6:45
2	11.1	7:38	6:46
3	11.2	7:36	6:47
4	11.2	7:34	6:48
5	11.3	7:33	6:49
6	11.3	7:31	6:50
7	11.3	7:29	6:50
8	11.4	7:28	6:51
9	11.4	7:26	6:52
10	11.5	7:24	6:53
11	11.5	7:23	6:54
12	11.6	7:21	6:55
13	11.6	7:19	6:56
14	11.7	7:18	6:57
15	11.7	7:16	6:58
16	11.7	7:14	6:59
17	11.8	7:13	7:00
18	11.8	7:11	7:01
19	11.9	7:09	7:02
20	11.9	7:08	7:03
21	12.0	7:06	7:04
22	12.0	7:04	7:05
23	12.1	7:02	7:06
24	12.1	7:01	7:07
25	12.1	6:59	7:08
26	12.2	6:57	7:09
27	12.2	6:56	7:10
28	12.3	6:54	7:11
29	12.3	6:52	7:12
30	12.4	6:51	7:13

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.02 kWh/m².

For context, solar energy here swings from a low near 1.8 kWh/m² to a high of 6.98 kWh/m² in January across the year — September's 4.02 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)	3.4	3.5	3.5	3.5	3.6	3.6	3.7	3.7	3.8	3.8	3.9	3.9	4.0	4.0	4.0	4.1	4.1	4.2	4.2	4.3	4.3	4.3	4.4	4.4	4.5	4.5	4.5	4.6	4.6	4.7
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.4	Moderate
2	3.5	Moderate
3	3.5	Moderate
4	3.5	Moderate
5	3.6	Moderate
6	3.6	Moderate
7	3.7	Moderate
8	3.7	Moderate
9	3.8	Moderate
10	3.8	Moderate
11	3.9	Moderate
12	3.9	Moderate
13	4.0	Moderate
14	4.0	Bright
15	4.0	Bright
16	4.1	Bright
17	4.1	Bright
18	4.2	Bright
19	4.2	Bright
20	4.3	Bright
21	4.3	Bright
22	4.3	Bright
23	4.4	Bright
24	4.4	Bright
25	4.5	Bright
26	4.5	Bright
27	4.5	Bright
28	4.6	Bright
29	4.6	Bright
30	4.7	Bright

Planning a trip in September

Is September a good time to visit Napier?

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

4.6

Sightseeing

9th-best month of the year

0.1

Beach & pool

9th-best month of the year

September is a reasonable time to visit Napier for sightseeing.

What to pack for Napier in September

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

In September, Napier sees daytime highs around 15°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Napier in September

The nearest coast averages about 13°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 22 km away) is warmest in February at about 20°C and coldest in August near 13°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	19	20	19	18	16	14	13	13	13	14	16	17
Comfort	Cool	Cool	Cool	Cool	Cool	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	19	Cool
Feb	20	Cool
Mar	19	Cool
Apr	18	Cool
May	16	Cool
Jun	14	Bracing
Jul	13	Bracing
Aug	13	Bracing
Sep	13	Bracing
Oct	14	Bracing
Nov	16	Cool
Dec	17	Cool

UV index in Napier in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Napier peaks around January 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	12	11	7	5	2	2	2	3	4	7	11	12
Level	Extreme	Extreme	High	Moderate	Moderate	Low	Moderate	Moderate	Moderate	High	Extreme	Extreme

	UV index (midday)	Level
Jan	12	Extreme
Feb	11	Extreme
Mar	7	High
Apr	5	Moderate
May	2	Moderate
Jun	2	Low
Jul	2	Moderate
Aug	3	Moderate
Sep	4	Moderate
Oct	7	High
Nov	11	Extreme
Dec	12	Extreme

Location & terrain

Where is Napier?

Napier sits at 39.5°S, 176.9°E, 6 m above sea level, in New Zealand. The nearest listed city is Hastings, 17 km away.

Topography around Napier

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

Within 3 km, the terrain around Napier has only modest variations in elevation — a maximum elevation change of 97 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 366 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,719 m.

The land around Napier is covered by water (52%) and artificial surfaces (31%) within 3 km, water (51%) and grassland (30%) within 16 km, and grassland (37%), water (32%) and trees (30%) within 80 km.

3 km

97 m

water 52%

16 km

366 m

water 51%

80 km

1,719 m

grassland 37%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

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

September weather nearby: Hastings 17 km · Taupo 115 km · Gisborne 133 km · Palmerston North 147 km · Rotorua 161 km · Whanganui 167 km · Whakatane 171 km · Levin 188 km

New Zealand travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type I; 230 V · 50 Hz
Prices: ≈ 86% of US; price level, 2025
GDP per capita: $49,591; 2025
Happiness: 7.0 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 1.5; per 100k, 2022
Road deaths: 9.6; per 100k/yr, 2019
Income group: High; World Bank
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 Napier (-39.4926°, 176.9123°, elevation 6 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	14	9
2	14	9
3	14	9
4	14	9
5	14	9
6	14	9
7	14	9
8	14	9
9	14	9
10	14	9
11	14	9
12	15	9
13	15	9
14	15	9
15	15	9
16	15	9
17	15	10
18	15	10
19	15	10
20	15	10
21	15	10
22	15	10
23	15	10
24	15	10
25	15	10
26	15	10
27	15	10
28	16	10
29	16	10
30	16	10

	Clearer (%)	Cloudier (%)
1	56	44
2	55	45
3	55	45
4	55	45
5	55	45
6	55	45
7	55	45
8	55	45
9	55	45
10	55	45
11	55	45
12	55	45
13	55	45
14	56	44
15	56	44
16	57	43
17	57	43
18	57	43
19	57	43
20	56	44
21	56	44
22	56	44
23	56	44
24	55	45
25	55	45
26	55	45
27	55	45
28	55	45
29	55	45
30	55	45

	Rain chance (%)
1	31
2	31
3	31
4	31
5	31
6	31
7	31
8	31
9	31
10	31
11	31
12	31
13	31
14	31
15	31
16	31
17	31
18	31
19	31
20	32
21	32
22	32
23	32
24	32
25	32
26	32
27	31
28	31
29	31
30	30

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	99	1
29	99	1
30	99	1

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

	Clearer (%)	Cloudier (%)
1	56	44
2	55	45
3	55	45
4	55	45
5	55	45
6	55	45
7	55	45
8	55	45
9	55	45
10	55	45
11	55	45
12	55	45
13	55	45
14	56	44
15	56	44
16	57	43
17	57	43
18	57	43
19	57	43
20	56	44
21	56	44
22	56	44
23	56	44
24	55	45
25	55	45
26	55	45
27	55	45
28	55	45
29	55	45
30	55	45

	Rain chance (%)
1	31
2	31
3	31
4	31
5	31
6	31
7	31
8	31
9	31
10	31
11	31
12	31
13	31
14	31
15	31
16	31
17	31
18	31
19	31
20	32
21	32
22	32
23	32
24	32
25	32
26	32
27	31
28	31
29	31
30	30

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	99	1
29	99	1
30	99	1

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

	Clearer (%)	Cloudier (%)
1	56	44
2	55	45
3	55	45
4	55	45
5	55	45
6	55	45
7	55	45
8	55	45
9	55	45
10	55	45
11	55	45
12	55	45
13	55	45
14	56	44
15	56	44
16	57	43
17	57	43
18	57	43
19	57	43
20	56	44
21	56	44
22	56	44
23	56	44
24	55	45
25	55	45
26	55	45
27	55	45
28	55	45
29	55	45
30	55	45

	Rain chance (%)
1	31
2	31
3	31
4	31
5	31
6	31
7	31
8	31
9	31
10	31
11	31
12	31
13	31
14	31
15	31
16	31
17	31
18	31
19	31
20	32
21	32
22	32
23	32
24	32
25	32
26	32
27	31
28	31
29	31
30	30

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	99	1
29	99	1
30	99	1