Rotorua weather in January

In January, Rotorua sees average daytime highs of 22°C and overnight lows near 13°C, with 84 mm of rain across 10.2 wet days and about 14.3 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 22% of the time in January, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of January to 14 hours by month's end. Set against the rest of the year, January is Rotorua's 5th-clearest and 8th-windiest month. For the whole year in context, see Rotorua's year-round climate.

Daytime high
22°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
84 mm
10.2 wet days
Daylight
14 h 24 min
6:13 AM – 8:36 PM
Cloud cover
62%
5th clearest
Wind
11 km/h
8th windiest
Solar energy
6.59 kWh/m²
Travel score
6.5
out of 10

Rotorua is city in Bay of Plenty, New Zealand.

Air quality
Good
PM10 18.2 µg/m³ · 2012
Density
25/km²
people per km²
Founded
1883

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical January day in Rotorua reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°C. Set against its neighbours, January runs about 2°C warmer than December and on par with February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52112
62112
72112
82112
92212
102212
112212
122212
132213
142213
152213
162213
172213
182213
192213
202213
212213
222213
232213
242213
252213
262213
272213
282213
292213
302213
312213

Rotorua weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 13°8410.214.36.5
Feb22° / 13°818.913.56.6
Mar20° / 11°859.612.36.3
Apr17° / 1009.5115.5
May14° / 10110.3104.1
Jun12° / 10910.99.42.9
Jul11° / 11812.39.62.5
Aug12° / 11313.210.52.8
Sep14° / 1141311.73.5
Oct15° / 10312.7134.4
Nov18° / 9311.414.15.4
Dec20° / 11°1131314.65.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23961
34060
44159
54159
64159
74258
84258
94258
104357
114258
124258
134258
144060
154060
164060
174060
184060
193961
204060
214060
223961
233961
244060
254060
263961
273961
283961
293961
304060
314060

Chance of precipitation in January

Any precipitation

Rotorua gets around 84 mm of rain over 10.2 wet days in January. 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 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
236
336
435
535
635
735
834
934
1034
1134
1234
1334
1434
1534
1634
1733
1833
1933
2032
2132
2232
2332
2431
2531
2631
2731
2831
2930
3030
3131

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1622990
2622990
3613090
46030100
56030100
65931100
75931100
85931100
95931100
105931100
115831101
125831101
135632111
145632111
155632111
165632111
175532121
185433121
195433121
205233132
215133142
225133142
235033152
245033152
254933162
264933162
274833172
284833172
294833172
304833172
314833173

Wind in January

Winds average 11 km/h in January.

Across January, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 h 36 min at the start of January to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over January. Sunrise moves from 6:00 AM to 6:29 AM, and sunset from 8:36 PM to 8:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.66:008:36
214.66:018:37
314.66:018:37
414.66:028:37
514.66:038:37
614.66:048:37
714.56:058:37
814.56:068:37
914.56:068:37
1014.56:078:37
1114.56:088:37
1214.56:098:37
1314.46:108:36
1414.46:118:36
1514.46:128:36
1614.46:138:36
1714.46:148:35
1814.36:158:35
1914.36:168:35
2014.36:178:34
2114.36:188:34
2214.26:198:33
2314.26:208:33
2414.26:218:32
2514.26:228:32
2614.16:238:31
2714.16:248:31
2814.16:268:30
2914.06:278:29
3014.06:288:29
3114.06:298:28

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.59 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.79 kWh/m² to a high of 6.59 kWh/m² in January across the year — January's 6.59 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.8Intense
86.7Intense
96.7Intense
106.6Intense
116.5Intense
126.5Intense
136.5Intense
146.4Intense
156.4Intense
166.3Intense
176.3Intense
186.3Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.0Intense
296.0Intense
306.0Bright
316.0Bright
Planning a trip in January

Is January a good time to visit Rotorua?

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

6.5
Sightseeing
2nd-best month of the year
4.4
Beach & pool
2nd-best month of the year

January is a reasonable time to visit Rotorua for sightseeing.

What to pack for Rotorua in January

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

In January, Rotorua sees daytime highs around 22°C and nights near 13°C. Pack sun protection. Worth having: rain gear. About 10 days see rain.

sun protectionrain gear

Sea temperature near Rotorua in January

The nearest coast averages about 20°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 44 km away) is warmest in February at about 21°C and coldest in August near 14°C.

It's comfortable for a long swim from Jan 22 to Mar 25 — about 2.1 months when the water holds above 20°C.

15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan20Cool
Feb21Refreshing
Mar20Refreshing
Apr19Cool
May18Cool
Jun16Cool
Jul15Bracing
Aug14Bracing
Sep14Bracing
Oct15Cool
Nov16Cool
Dec18Cool

UV index in Rotorua in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rotorua peaks around December 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateModerateHighVery highExtremeDec 22UV 12Jun 18UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar8Very high
Apr5High
May3Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep5Moderate
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Rotorua?

Rotorua sits at 38.1°S, 176.2°E, 287 m above sea level, in New Zealand. The nearest listed city is Tauranga, 51 km away.

Pukekohe EastNapier

Topography around Rotorua

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

Within 3 km, the terrain around Rotorua has only modest variations in elevation — a maximum elevation change of 84 m around an average of 292 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 572 m; within 80 km, large variations in elevation — a maximum elevation change of 1,180 m.

The land around Rotorua is covered by artificial surfaces (36%), trees (22%) and water (22%) within 3 km, trees (46%) and grassland (37%) within 16 km, and trees (44%) and grassland (36%) within 80 km.

3 km
84 m
16 km
572 m
80 km
1,180 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Tauranga 51 km · Taupo 62 km · Whakatane 68 km · Cambridge 76 km · Hamilton East 92 km · Hamilton 93 km · Pukekohe East 155 km · Napier 161 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 Rotorua (-38.1387°, 176.2452°, elevation 287 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).