Porirua weather in May

In May, Porirua sees average daytime highs of 14°C and overnight lows near 12°C, with 76 mm of rain across 10.2 wet days and about 9.7 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 13°C by the end. The sky is clear or mostly clear about 38% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of May to 9 h 18 min by month's end. Set against the rest of the year, May is Porirua's 4th-clearest and 8th-windiest month. For the whole year in context, see Porirua's year-round climate.

Daytime high: 14°; 7th warmest
Overnight low: 12°; 6th coldest
Rainfall: 76 mm; 10.2 wet days
Daylight: 9 h 42 min; 8:26 AM – 6:08 PM
Cloud cover: 53%; 4th clearest
Wind: 26 km/h; 8th windiest
Solar energy: 2.14 kWh/m²
Travel score: 4.0; out of 10

Porirua is city in New Zealand.

Air quality: Excellent; PM10 12.1 µg/m³ · 2012
Density: 337/km²; people per km²

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

← April Porirua year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 14°C in the first days to 13°C by the end.

A typical May day in Porirua reaches about 14°C in the afternoon and slips back to 12°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 16°C. Set against its neighbours, May runs about 1°C cooler than April and about 2°C warmer than June.

	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	31
Avg high (°C)	15	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	13	13
Avg low (°C)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11	11	11	11	11	11	11	11

	Avg high (°C)	Avg low (°C)
1	15	12
2	14	12
3	14	12
4	14	12
5	14	12
6	14	12
7	14	12
8	14	12
9	14	12
10	14	12
11	14	12
12	14	12
13	14	12
14	14	12
15	14	12
16	14	12
17	14	12
18	14	11
19	14	11
20	14	11
21	13	11
22	13	11
23	13	11
24	13	11
25	13	11
26	13	11
27	13	11
28	13	11
29	13	11
30	13	11
31	13	11

Porirua weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	17° / 15°	55	7.5	14.6	5.9
Feb	18° / 15°	56	6.1	13.6	6.4
Mar	17° / 14°	59	7.4	12.3	5.8
Apr	15° / 13°	73	9	10.9	4.8
May	14° / 12°	76	10.2	9.7	4.0
Jun	12° / 10°	95	12.1	9.1	3.1
Jul	11° / 9°	87	12.1	9.3	2.7
Aug	11° / 9°	82	12.6	10.4	2.7
Sep	12° / 10°	74	10.8	11.7	3.2
Oct	13° / 11°	83	11.3	13.1	3.6
Nov	14° / 12°	69	9.1	14.3	4.3
Dec	16° / 14°	65	9.6	14.9	5.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, 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	31
Clearer (%)	52	52	53	53	53	53	54	54	54	55	56	56	57	57	57	56	56	56	56	56	56	56	55	56	56	55	54	54	53	53	53
Cloudier (%)	48	48	47	47	47	47	46	46	46	45	44	44	43	43	43	44	44	44	44	44	44	44	45	44	44	45	46	46	47	47	47

	Clearer (%)	Cloudier (%)
1	52	48
2	52	48
3	53	47
4	53	47
5	53	47
6	53	47
7	54	46
8	54	46
9	54	46
10	55	45
11	56	44
12	56	44
13	57	43
14	57	43
15	57	43
16	56	44
17	56	44
18	56	44
19	56	44
20	56	44
21	56	44
22	56	44
23	55	45
24	56	44
25	56	44
26	55	45
27	54	46
28	54	46
29	53	47
30	53	47
31	53	47

Chance of precipitation in May

Any precipitation

Porirua gets around 76 mm of rain over 10.2 wet days in May. 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 38% 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	31
Rain chance (%)	30	31	31	32	33	33	33	33	34	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33	34	35	35	36	37	37	38

	Rain chance (%)
1	30
2	31
3	31
4	32
5	33
6	33
7	33
8	33
9	34
10	33
11	33
12	33
13	33
14	33
15	33
16	33
17	33
18	33
19	33
20	33
21	33
22	33
23	33
24	33
25	34
26	35
27	35
28	36
29	37
30	37
31	38

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 91% 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	31
Dry (%)	83	83	84	84	85	85	86	86	87	88	88	89	90	91	91	92	93	93	94	95	95	96	96	96	97	97	97	97	97	98	98
Comfortable (%)	17	17	16	16	15	15	14	14	13	12	12	11	10	9	9	8	7	7	6	5	5	4	4	4	3	3	3	3	3	2	2

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	84	16
4	84	16
5	85	15
6	85	15
7	86	14
8	86	14
9	87	13
10	88	12
11	88	12
12	89	11
13	90	10
14	91	9
15	91	9
16	92	8
17	93	7
18	93	7
19	94	6
20	95	5
21	95	5
22	96	4
23	96	4
24	96	4
25	97	3
26	97	3
27	97	3
28	97	3
29	97	3
30	98	2
31	98	2

Wind in May

Winds average 26 km/h in May.

Across May, daily wind ranges from about 25 km/h on the calmest days to 26 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	31
Wind speed (km/h)	25	25	25	25	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

	Wind speed (km/h)	Feels
1	25	breezy
2	25	breezy
3	25	breezy
4	25	breezy
5	26	breezy
6	26	breezy
7	26	breezy
8	26	breezy
9	26	breezy
10	26	breezy
11	26	breezy
12	26	breezy
13	26	breezy
14	26	breezy
15	26	breezy
16	26	breezy
17	26	breezy
18	26	breezy
19	26	breezy
20	26	breezy
21	26	breezy
22	26	breezy
23	26	breezy
24	26	breezy
25	26	breezy
26	26	breezy
27	26	breezy
28	26	breezy
29	26	breezy
30	26	breezy
31	26	breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 18 min at the start of May to 9 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over May. Sunrise moves from 8:10 AM to 8:39 AM, and sunset from 6:26 PM to 5:57 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	31
Daylight (h)	10.3	10.2	10.2	10.1	10.1	10.1	10.0	10.0	9.9	9.9	9.9	9.8	9.8	9.8	9.7	9.7	9.7	9.6	9.6	9.6	9.5	9.5	9.5	9.5	9.4	9.4	9.4	9.4	9.3	9.3	9.3
Sunrise (AM)	8:10	8:11	8:12	8:13	8:14	8:15	8:16	8:17	8:19	8:20	8:21	8:22	8:23	8:24	8:25	8:26	8:27	8:28	8:29	8:30	8:31	8:32	8:32	8:33	8:34	8:35	8:36	8:37	8:38	8:39	8:39
Sunset (PM)	6:26	6:24	6:23	6:22	6:20	6:19	6:18	6:17	6:15	6:14	6:13	6:12	6:11	6:10	6:09	6:08	6:07	6:06	6:05	6:04	6:03	6:03	6:02	6:01	6:00	6:00	5:59	5:58	5:58	5:57	5:57

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.3	8:10	6:26
2	10.2	8:11	6:24
3	10.2	8:12	6:23
4	10.1	8:13	6:22
5	10.1	8:14	6:20
6	10.1	8:15	6:19
7	10.0	8:16	6:18
8	10.0	8:17	6:17
9	9.9	8:19	6:15
10	9.9	8:20	6:14
11	9.9	8:21	6:13
12	9.8	8:22	6:12
13	9.8	8:23	6:11
14	9.8	8:24	6:10
15	9.7	8:25	6:09
16	9.7	8:26	6:08
17	9.7	8:27	6:07
18	9.6	8:28	6:06
19	9.6	8:29	6:05
20	9.6	8:30	6:04
21	9.5	8:31	6:03
22	9.5	8:32	6:03
23	9.5	8:32	6:02
24	9.5	8:33	6:01
25	9.4	8:34	6:00
26	9.4	8:35	6:00
27	9.4	8:36	5:59
28	9.4	8:37	5:58
29	9.3	8:38	5:58
30	9.3	8:39	5:57
31	9.3	8:39	5:57

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.14 kWh/m².

For context, solar energy here swings from a low near 1.6 kWh/m² to a high of 7.3 kWh/m² in January across the year — May's 2.14 kWh/m² sits near the bottom.

	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	31
Solar energy (kWh/m²)	2.5	2.5	2.5	2.5	2.4	2.4	2.4	2.3	2.3	2.3	2.3	2.2	2.2	2.2	2.2	2.1	2.1	2.1	2.1	2.0	2.0	2.0	2.0	1.9	1.9	1.9	1.9	1.9	1.8	1.8	1.8
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	2.5	Moderate
2	2.5	Moderate
3	2.5	Moderate
4	2.5	Moderate
5	2.4	Moderate
6	2.4	Moderate
7	2.4	Moderate
8	2.3	Moderate
9	2.3	Moderate
10	2.3	Moderate
11	2.3	Moderate
12	2.2	Moderate
13	2.2	Moderate
14	2.2	Moderate
15	2.2	Moderate
16	2.1	Moderate
17	2.1	Moderate
18	2.1	Moderate
19	2.1	Moderate
20	2.0	Moderate
21	2.0	Moderate
22	2.0	Dim
23	2.0	Dim
24	1.9	Dim
25	1.9	Dim
26	1.9	Dim
27	1.9	Dim
28	1.9	Dim
29	1.8	Dim
30	1.8	Dim
31	1.8	Dim

Planning a trip in May

Is May a good time to visit Porirua?

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

4.0

Sightseeing

7th-best month of the year

0.0

Beach & pool

7th-best month of the year

May is a reasonable time to visit Porirua for sightseeing.

What to pack for Porirua in May

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

In May, Porirua sees daytime highs around 14°C and nights near 12°C. Worth packing: a warm layer, rain gear and a windbreaker. About 10 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Porirua in May

The nearest coast averages about 15°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in February at about 17°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)	16	17	17	16	15	14	13	12	13	13	14	15
Comfort	Cool	Cool	Cool	Cool	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool

	Sea temperature (°C)	Comfort
Jan	16	Cool
Feb	17	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	15	Cool

UV index in Porirua in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Porirua peaks around January 1 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 1 (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	10	6	4	2	1	2	3	4	6	9	11
Level	Extreme	Extreme	High	Moderate	Low	Low	Low	Moderate	Moderate	High	Very high	Extreme

	UV index (midday)	Level
Jan	11	Extreme
Feb	10	Extreme
Mar	6	High
Apr	4	Moderate
May	2	Low
Jun	1	Low
Jul	2	Low
Aug	3	Moderate
Sep	4	Moderate
Oct	6	High
Nov	9	Very high
Dec	11	Extreme

Location & terrain

Where is Porirua?

Porirua sits at 41.1°S, 174.8°E, 58 m above sea level, in New Zealand. The nearest listed city is Lower Hutt, 11 km away.

Topography around Porirua

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

Within 3 km, the terrain around Porirua has significant variations in elevation — a maximum elevation change of 356 m around an average of 82 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 560 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,512 m.

The land around Porirua is covered by trees (43%), artificial surfaces (25%) and grassland (24%) within 3 km, water (40%), trees (32%) and grassland (22%) within 16 km, and water (57%) and trees (24%) within 80 km.

3 km

356 m

trees 43%

16 km

560 m

water 40%

80 km

1,512 m

water 57%

treesgrasslandcroplandartificial surfaceswater

← April Porirua year-round climate June →Best places to visit in May

May weather nearby: Lower Hutt 11 km · Upper Hutt 17 km · Wainuiomata 17 km · Wellington 18 km · Karori 19 km · Paraparaumu 28 km · Levin 66 km · Masterton 70 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 Porirua (-41.1333°, 174.85°, elevation 58 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	15	12
2	14	12
3	14	12
4	14	12
5	14	12
6	14	12
7	14	12
8	14	12
9	14	12
10	14	12
11	14	12
12	14	12
13	14	12
14	14	12
15	14	12
16	14	12
17	14	12
18	14	11
19	14	11
20	14	11
21	13	11
22	13	11
23	13	11
24	13	11
25	13	11
26	13	11
27	13	11
28	13	11
29	13	11
30	13	11
31	13	11

	Clearer (%)	Cloudier (%)
1	52	48
2	52	48
3	53	47
4	53	47
5	53	47
6	53	47
7	54	46
8	54	46
9	54	46
10	55	45
11	56	44
12	56	44
13	57	43
14	57	43
15	57	43
16	56	44
17	56	44
18	56	44
19	56	44
20	56	44
21	56	44
22	56	44
23	55	45
24	56	44
25	56	44
26	55	45
27	54	46
28	54	46
29	53	47
30	53	47
31	53	47

	Rain chance (%)
1	30
2	31
3	31
4	32
5	33
6	33
7	33
8	33
9	34
10	33
11	33
12	33
13	33
14	33
15	33
16	33
17	33
18	33
19	33
20	33
21	33
22	33
23	33
24	33
25	34
26	35
27	35
28	36
29	37
30	37
31	38

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	84	16
4	84	16
5	85	15
6	85	15
7	86	14
8	86	14
9	87	13
10	88	12
11	88	12
12	89	11
13	90	10
14	91	9
15	91	9
16	92	8
17	93	7
18	93	7
19	94	6
20	95	5
21	95	5
22	96	4
23	96	4
24	96	4
25	97	3
26	97	3
27	97	3
28	97	3
29	97	3
30	98	2
31	98	2

	Avg high (°C)	Avg low (°C)
1	15	12
2	14	12
3	14	12
4	14	12
5	14	12
6	14	12
7	14	12
8	14	12
9	14	12
10	14	12
11	14	12
12	14	12
13	14	12
14	14	12
15	14	12
16	14	12
17	14	12
18	14	11
19	14	11
20	14	11
21	13	11
22	13	11
23	13	11
24	13	11
25	13	11
26	13	11
27	13	11
28	13	11
29	13	11
30	13	11
31	13	11

	Clearer (%)	Cloudier (%)
1	52	48
2	52	48
3	53	47
4	53	47
5	53	47
6	53	47
7	54	46
8	54	46
9	54	46
10	55	45
11	56	44
12	56	44
13	57	43
14	57	43
15	57	43
16	56	44
17	56	44
18	56	44
19	56	44
20	56	44
21	56	44
22	56	44
23	55	45
24	56	44
25	56	44
26	55	45
27	54	46
28	54	46
29	53	47
30	53	47
31	53	47

	Rain chance (%)
1	30
2	31
3	31
4	32
5	33
6	33
7	33
8	33
9	34
10	33
11	33
12	33
13	33
14	33
15	33
16	33
17	33
18	33
19	33
20	33
21	33
22	33
23	33
24	33
25	34
26	35
27	35
28	36
29	37
30	37
31	38

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	84	16
4	84	16
5	85	15
6	85	15
7	86	14
8	86	14
9	87	13
10	88	12
11	88	12
12	89	11
13	90	10
14	91	9
15	91	9
16	92	8
17	93	7
18	93	7
19	94	6
20	95	5
21	95	5
22	96	4
23	96	4
24	96	4
25	97	3
26	97	3
27	97	3
28	97	3
29	97	3
30	98	2
31	98	2

	Avg high (°C)	Avg low (°C)
1	15	12
2	14	12
3	14	12
4	14	12
5	14	12
6	14	12
7	14	12
8	14	12
9	14	12
10	14	12
11	14	12
12	14	12
13	14	12
14	14	12
15	14	12
16	14	12
17	14	12
18	14	11
19	14	11
20	14	11
21	13	11
22	13	11
23	13	11
24	13	11
25	13	11
26	13	11
27	13	11
28	13	11
29	13	11
30	13	11
31	13	11

	Clearer (%)	Cloudier (%)
1	52	48
2	52	48
3	53	47
4	53	47
5	53	47
6	53	47
7	54	46
8	54	46
9	54	46
10	55	45
11	56	44
12	56	44
13	57	43
14	57	43
15	57	43
16	56	44
17	56	44
18	56	44
19	56	44
20	56	44
21	56	44
22	56	44
23	55	45
24	56	44
25	56	44
26	55	45
27	54	46
28	54	46
29	53	47
30	53	47
31	53	47

	Rain chance (%)
1	30
2	31
3	31
4	32
5	33
6	33
7	33
8	33
9	34
10	33
11	33
12	33
13	33
14	33
15	33
16	33
17	33
18	33
19	33
20	33
21	33
22	33
23	33
24	33
25	34
26	35
27	35
28	36
29	37
30	37
31	38

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	84	16
4	84	16
5	85	15
6	85	15
7	86	14
8	86	14
9	87	13
10	88	12
11	88	12
12	89	11
13	90	10
14	91	9
15	91	9
16	92	8
17	93	7
18	93	7
19	94	6
20	95	5
21	95	5
22	96	4
23	96	4
24	96	4
25	97	3
26	97	3
27	97	3
28	97	3
29	97	3
30	98	2
31	98	2