Nelson weather in April

In April, Nelson sees average daytime highs of 16°C and overnight lows near 11°C, with 108 mm of rain across 10.5 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 15°C by the end. The sky is clear or mostly clear about 38% of the time in April, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of April to 10 h 18 min by month's end. Set against the rest of the year, April is Nelson's 6th-clearest and 12th-windiest month. For the whole year in context, see Nelson's year-round climate.

Daytime high
16°
6th warmest
Overnight low
11°
8th coldest
Rainfall
108 mm
10.5 wet days
Daylight
10 h 54 min
8:00 AM – 6:54 PM
Cloud cover
54%
6th clearest
Wind
9 km/h
12th windiest
Solar energy
3.14 kWh/m²
Travel score
4.9
out of 10

Nelson is city on the South Island, New Zealand.

Density
122/km²
people per km²
Founded
1841

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 17°C in the first days to 15°C by the end.

A typical April day in Nelson reaches about 16°C in the afternoon and slips back to 11°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 18°C. Set against its neighbours, April runs about 2°C cooler than March and about 2°C warmer than May.

10°15°20°151015202530
Avg high (°C)Avg low (°C)
11712
21712
31711
41711
51711
61611
71611
81611
91611
101611
111611
121611
131611
141611
151611
161610
171610
181510
191510
201510
211510
221510
231510
241510
251510
261510
271510
281510
291510
301510

Nelson weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 14°1029.814.66.3
Feb20° / 14°808.113.76.5
Mar18° / 13°938.812.36.2
Apr16° / 11°10810.510.94.9
May13° / 12010.79.73.9
Jun11° / 12710.69.12.8
Jul10° / 1109.49.32.5
Aug11° / 11411.810.32.6
Sep12° / 11712.211.73.2
Oct14° / 1311313.13.9
Nov16° / 10°10911.614.34.7
Dec18° / 13°12512.814.95.4

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25842
35842
45743
55743
65743
75743
85743
95842
105842
115743
125842
135842
145941
155941
165842
175842
185842
195842
205743
215743
225743
235644
245644
255644
265545
275545
285545
295545
305545

Chance of precipitation in April

Any precipitation

Nelson gets around 108 mm of rain over 10.5 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
234
334
434
535
635
735
835
935
1035
1135
1235
1334
1434
1534
1633
1733
1833
1933
2033
2134
2234
2334
2435
2535
2635
2735
2835
2936
3036

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
175223
277203
378193
480182
581172
682162
783152
885141
986131
1086131
1187121
1287121
1387121
1487121
1588111
1689110
1789110
1889110
1989110
2089110
2189110
2289110
2390100
2490100
2590100
2690100
279190
289190
299190
309190

Wind in April

Winds average 9 km/h in April, the calmest month.

Across April, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 36 min at the start of April to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over April. Sunrise moves from 7:44 AM to 8:15 AM, and sunset from 7:19 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:447:19
211.57:457:17
311.57:467:16
411.47:477:14
511.47:487:12
611.47:497:11
711.37:507:09
811.37:517:07
911.27:537:05
1011.27:547:04
1111.17:557:02
1211.17:567:00
1311.07:576:59
1411.07:586:57
1510.97:596:56
1610.98:006:54
1710.98:016:52
1810.88:026:51
1910.88:036:49
2010.78:056:48
2110.78:066:46
2210.68:076:45
2310.68:086:43
2410.58:096:42
2510.58:106:40
2610.58:116:39
2710.48:126:37
2810.48:136:36
2910.38:146:34
3010.38:156:33

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.14 kWh/m².

For context, solar energy here swings from a low near 1.64 kWh/m² to a high of 7.08 kWh/m² in January across the year — April's 3.14 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.7Moderate
43.7Moderate
53.6Moderate
63.6Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.3Moderate
123.3Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.7Moderate
282.7Moderate
292.6Moderate
302.6Moderate
Planning a trip in April

Is April a good time to visit Nelson?

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

4.9
Sightseeing
5th-best month of the year
0.5
Beach & pool
6th-best month of the year

April is a reasonable time to visit Nelson for sightseeing.

What to pack for Nelson in April

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

In April, Nelson sees daytime highs around 16°C and nights near 11°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Nelson in April

The nearest coast averages about 17°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in February at about 20°C and coldest in August near 12°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan19Cool
Feb20Cool
Mar19Cool
Apr17Cool
May15Cool
Jun14Bracing
Jul12Bracing
Aug12Bracing
Sep12Bracing
Oct14Bracing
Nov16Cool
Dec17Cool

UV index in Nelson in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Nelson 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateLowModerateHighVery highExtremeJan 1UV 11Jun 17UV 1
UV index (midday)Level
Jan11Extreme
Feb10Extreme
Mar6High
Apr4Moderate
May2Low
Jun1Low
Jul2Low
Aug3Moderate
Sep4Moderate
Oct6High
Nov9Very high
Dec11Extreme
Location & terrain

Where is Nelson?

Nelson sits at 41.3°S, 173.3°E, 11 m above sea level, in New Zealand. The nearest listed city is Stoke, 7.0 km away.

KaroriWellingtonKaikouraPorirua

Topography around Nelson

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

Within 3 km, the terrain around Nelson has significant variations in elevation — a maximum elevation change of 403 m around an average of 62 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,211 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,095 m.

The land around Nelson is covered by trees (42%) and water (32%) within 3 km, trees (46%) and water (38%) within 16 km, and trees (48%), water (28%) and grassland (21%) within 80 km.

3 km
403 m
16 km
1,211 m
80 km
2,095 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Stoke 7.0 km · Richmond 11 km · Picton 61 km · Blenheim 62 km · Karori 122 km · Wellington 125 km · Kaikoura 132 km · Porirua 132 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
no religion 49%Christian 37%objected to answering 7%Hindu 3%

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 Nelson (-41.2708°, 173.284°, elevation 11 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).