Masterton weather in September

In September, Masterton sees average daytime highs of 13°C and overnight lows near 6°C, with 81 mm of precipitation across 12.9 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 25% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of September to 12 h 24 min by month's end. Set against the rest of the year, September is Masterton's 6th-clearest and 3rd-windiest month. For the whole year in context, see Masterton's year-round climate.

Daytime high: 13°; 9th warmest
Overnight low: 6°; 4th coldest
Precipitation: 81 mm; 12.9 wet days
Daylight: 11 h 42 min; 7:20 AM – 7:04 PM
Cloud cover: 62%; 6th clearest
Wind: 17 km/h; 3rd windiest
Solar energy: 3.82 kWh/m²
Travel score: 3.3; out of 10

Masterton is town in Wellington Region, New Zealand.

Air quality: Moderate; PM2.5 11.7 µg/m³ · 2012
Founded: 1854

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

← August Masterton 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 13°C through the month.

A typical September day in Masterton reaches about 13°C in the afternoon and slips back to 6°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 15°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)	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	14	14	14
Avg low (°C)	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	7	7	7	7	7	7	7	7	7	7

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

Masterton weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	20° / 12°	68	10.4	14.6	6.2
Feb	20° / 13°	67	8.5	13.6	6.4
Mar	19° / 11°	67	8.8	12.3	6.2
Apr	16° / 9°	75	9.9	10.9	5.0
May	14° / 7°	62	10.5	9.7	4.0
Jun	12° / 5°	83	12.2	9.1	2.8
Jul	11° / 5°	91	13.1	9.4	2.4
Aug	11° / 5°	81	13.4	10.4	2.7
Sep	13° / 6°	81	12.9	11.7	3.3
Oct	14° / 8°	95	12.8	13.1	4.0
Nov	16° / 9°	85	12.1	14.3	4.7
Dec	18° / 11°	84	11.4	14.9	5.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 56%.

	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 (%)	43	44	43	43	43	43	43	44	44	45	44	45	45	46	46	46	46	47	46	46	46	45	45	45	44	44	44	44	43	42
Cloudier (%)	57	56	57	57	57	57	57	56	56	55	56	55	55	54	54	54	54	53	54	54	54	55	55	55	56	56	56	56	57	58

	Clearer (%)	Cloudier (%)
1	43	57
2	44	56
3	43	57
4	43	57
5	43	57
6	43	57
7	43	57
8	44	56
9	44	56
10	45	55
11	44	56
12	45	55
13	45	55
14	46	54
15	46	54
16	46	54
17	46	54
18	47	53
19	46	54
20	46	54
21	46	54
22	45	55
23	45	55
24	45	55
25	44	56
26	44	56
27	44	56
28	44	56
29	43	57
30	42	58

Chance of precipitation in September

Any precipitation

Masterton gets around 81 mm of rain and snow over 12.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 42% and peaks near 44% on the wettest days, and about 0 day brings snow.

	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 (%)	41	41	42	42	42	42	42	43	43	43	43	43	42	42	42	41	41	41	41	41	42	42	42	43	43	43	43	43	44	44

	Rain chance (%)
1	41
2	41
3	42
4	42
5	42
6	42
7	42
8	43
9	43
10	43
11	43
12	43
13	42
14	42
15	42
16	41
17	41
18	41
19	41
20	41
21	42
22	42
23	42
24	43
25	43
26	43
27	43
28	43
29	44
30	44

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 100% 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	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

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

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 18 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	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18	18
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	17	light breeze
8	17	light breeze
9	17	light breeze
10	17	light breeze
11	17	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	18	light breeze
23	18	light breeze
24	18	light breeze
25	18	light breeze
26	18	light breeze
27	18	light breeze
28	18	light breeze
29	18	light breeze
30	18	light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 hours 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 84 minutes over September. Sunrise moves from 7:46 AM to 6:55 AM, and sunset from 6:48 PM to 7:18 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)	11.0	11.1	11.1	11.2	11.2	11.3	11.3	11.4	11.4	11.5	11.5	11.5	11.6	11.6	11.7	11.7	11.8	11.8	11.9	11.9	12.0	12.0	12.1	12.1	12.2	12.2	12.2	12.3	12.3	12.4
Sunrise (AM)	7:46	7:44	7:42	7:41	7:39	7:37	7:36	7:34	7:32	7:30	7:29	7:27	7:25	7:23	7:22	7:20	7:18	7:16	7:14	7:13	7:11	7:09	7:07	7:06	7:04	7:02	7:00	6:59	6:57	6:55
Sunset (PM)	6:48	6:49	6:50	6:51	6:52	6:53	6:54	6:55	6:56	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	7:14	7:15	7:16	7:17	7:18

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.0	7:46	6:48
2	11.1	7:44	6:49
3	11.1	7:42	6:50
4	11.2	7:41	6:51
5	11.2	7:39	6:52
6	11.3	7:37	6:53
7	11.3	7:36	6:54
8	11.4	7:34	6:55
9	11.4	7:32	6:56
10	11.5	7:30	6:58
11	11.5	7:29	6:59
12	11.5	7:27	7:00
13	11.6	7:25	7:01
14	11.6	7:23	7:02
15	11.7	7:22	7:03
16	11.7	7:20	7:04
17	11.8	7:18	7:05
18	11.8	7:16	7:06
19	11.9	7:14	7:07
20	11.9	7:13	7:08
21	12.0	7:11	7:09
22	12.0	7:09	7:10
23	12.1	7:07	7:11
24	12.1	7:06	7:12
25	12.2	7:04	7:13
26	12.2	7:02	7:14
27	12.2	7:00	7:15
28	12.3	6:59	7:16
29	12.3	6:57	7:17
30	12.4	6:55	7:18

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.82 kWh/m².

For context, solar energy here swings from a low near 1.58 kWh/m² to a high of 6.99 kWh/m² in January across the year — September's 3.82 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)	3.2	3.2	3.3	3.3	3.4	3.4	3.5	3.5	3.6	3.6	3.7	3.7	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.0	4.1	4.1	4.2	4.2	4.2	4.3	4.3	4.3	4.4	4.4
Level	Moderate	Moderate	Moderate	Moderate	Moderate	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

	Solar energy (kWh/m²)	Level
1	3.2	Moderate
2	3.2	Moderate
3	3.3	Moderate
4	3.3	Moderate
5	3.4	Moderate
6	3.4	Moderate
7	3.5	Moderate
8	3.5	Moderate
9	3.6	Moderate
10	3.6	Moderate
11	3.7	Moderate
12	3.7	Moderate
13	3.8	Moderate
14	3.8	Moderate
15	3.9	Moderate
16	3.9	Moderate
17	3.9	Moderate
18	4.0	Moderate
19	4.0	Bright
20	4.0	Bright
21	4.1	Bright
22	4.1	Bright
23	4.2	Bright
24	4.2	Bright
25	4.2	Bright
26	4.3	Bright
27	4.3	Bright
28	4.3	Bright
29	4.4	Bright
30	4.4	Bright

Planning a trip in September

Is September a good time to visit Masterton?

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

3.3

Sightseeing

9th-best month of the year

0.0

Beach & pool

9th-best month of the year

September is a weaker month for outdoor sightseeing in Masterton.

What to pack for Masterton in September

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

In September, Masterton sees daytime highs around 13°C and nights near 6°C. Worth packing: a warm layer and rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Masterton 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 43 km away) is warmest in February at about 18°C and coldest in August near 12°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)	17	18	17	16	15	14	13	12	13	13	14	16
Comfort	Cool	Cool	Cool	Cool	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool

	Sea temperature (°C)	Comfort
Jan	17	Cool
Feb	18	Cool
Mar	17	Cool
Apr	16	Cool
May	15	Bracing
Jun	14	Bracing
Jul	13	Bracing
Aug	12	Bracing
Sep	13	Bracing
Oct	13	Bracing
Nov	14	Bracing
Dec	16	Cool

UV index in Masterton 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 Masterton peaks around January 12 at about 11 (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 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	11	11	6	4	2	2	2	3	4	6	10	11
Level	Extreme	Extreme	High	Moderate	Moderate	Low	Low	Moderate	Moderate	High	Very high	Extreme

	UV index (midday)	Level
Jan	11	Extreme
Feb	11	Extreme
Mar	6	High
Apr	4	Moderate
May	2	Moderate
Jun	2	Low
Jul	2	Low
Aug	3	Moderate
Sep	4	Moderate
Oct	6	High
Nov	10	Very high
Dec	11	Extreme

Location & terrain

Where is Masterton?

Masterton sits at 41.0°S, 175.7°E, 103 m above sea level, in New Zealand. The nearest listed city is Levin, 49 km away.

Topography around Masterton

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

Within 3 km, the terrain around Masterton has only modest variations in elevation — a maximum elevation change of 70 m around an average of 108 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 673 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,511 m.

The land around Masterton is covered by grassland (51%) and artificial surfaces (24%) within 3 km, grassland (78%) within 16 km, and grassland (38%), water (35%) and trees (26%) within 80 km.

3 km

70 m

grassland 51%

16 km

673 m

grassland 78%

80 km

1,511 m

grassland 38%

treesgrasslandcroplandartificial surfaceswater

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

September weather nearby: Levin 49 km · Paraparaumu 54 km · Upper Hutt 55 km · Palmerston North 67 km · Lower Hutt 68 km · Wainuiomata 68 km · Porirua 70 km · Wellington 82 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 Masterton (-40.9597°, 175.6575°, elevation 103 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	12	5
2	12	5
3	12	5
4	12	6
5	12	6
6	12	6
7	12	6
8	12	6
9	13	6
10	13	6
11	13	6
12	13	6
13	13	6
14	13	6
15	13	6
16	13	6
17	13	6
18	13	6
19	13	6
20	13	6
21	13	7
22	13	7
23	13	7
24	13	7
25	13	7
26	13	7
27	13	7
28	14	7
29	14	7
30	14	7

	Clearer (%)	Cloudier (%)
1	43	57
2	44	56
3	43	57
4	43	57
5	43	57
6	43	57
7	43	57
8	44	56
9	44	56
10	45	55
11	44	56
12	45	55
13	45	55
14	46	54
15	46	54
16	46	54
17	46	54
18	47	53
19	46	54
20	46	54
21	46	54
22	45	55
23	45	55
24	45	55
25	44	56
26	44	56
27	44	56
28	44	56
29	43	57
30	42	58

	Rain chance (%)
1	41
2	41
3	42
4	42
5	42
6	42
7	42
8	43
9	43
10	43
11	43
12	43
13	42
14	42
15	42
16	41
17	41
18	41
19	41
20	41
21	42
22	42
23	42
24	43
25	43
26	43
27	43
28	43
29	44
30	44

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

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

	Clearer (%)	Cloudier (%)
1	43	57
2	44	56
3	43	57
4	43	57
5	43	57
6	43	57
7	43	57
8	44	56
9	44	56
10	45	55
11	44	56
12	45	55
13	45	55
14	46	54
15	46	54
16	46	54
17	46	54
18	47	53
19	46	54
20	46	54
21	46	54
22	45	55
23	45	55
24	45	55
25	44	56
26	44	56
27	44	56
28	44	56
29	43	57
30	42	58

	Rain chance (%)
1	41
2	41
3	42
4	42
5	42
6	42
7	42
8	43
9	43
10	43
11	43
12	43
13	42
14	42
15	42
16	41
17	41
18	41
19	41
20	41
21	42
22	42
23	42
24	43
25	43
26	43
27	43
28	43
29	44
30	44

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

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

	Clearer (%)	Cloudier (%)
1	43	57
2	44	56
3	43	57
4	43	57
5	43	57
6	43	57
7	43	57
8	44	56
9	44	56
10	45	55
11	44	56
12	45	55
13	45	55
14	46	54
15	46	54
16	46	54
17	46	54
18	47	53
19	46	54
20	46	54
21	46	54
22	45	55
23	45	55
24	45	55
25	44	56
26	44	56
27	44	56
28	44	56
29	43	57
30	42	58

	Rain chance (%)
1	41
2	41
3	42
4	42
5	42
6	42
7	42
8	43
9	43
10	43
11	43
12	43
13	42
14	42
15	42
16	41
17	41
18	41
19	41
20	41
21	42
22	42
23	42
24	43
25	43
26	43
27	43
28	43
29	44
30	44

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