Rolleston weather in July

In July, Rolleston sees average daytime highs of 11°C and overnight lows near 2°C, with 54 mm of precipitation across 8.2 wet days and about 9.1 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 11°C through the month. The sky is clear or mostly clear about 36% of the time in July, and the air most often feels dry.

Daylight stretches from about 8 h 48 min at the start of July to 9 h 30 min by month's end. Set against the rest of the year, July is Rolleston's 2nd-clearest and 12th-windiest month. For the whole year in context, see Rolleston's year-round climate.

Daytime high
11°
12th warmest
Overnight low
1st coldest
Precipitation
54 mm
8.2 wet days
Daylight
9 h 06 min
9:04 AM – 6:08 PM
Cloud cover
57%
2nd clearest
Wind
10 km/h
12th windiest
Solar energy
1.68 kWh/m²
Travel score
2.8
out of 10

Rolleston is town in Canterbury, New Zealand.

Density
1,545/km²
people per km²

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 11°C through the month.

A typical July day in Rolleston reaches about 11°C in the afternoon and slips back to 2°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 14°C. Set against its neighbours, July runs on par with June and about 1°C cooler than August.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1112
2112
3112
4112
5112
6112
7112
8112
9112
10112
11112
12112
13112
14112
15112
16112
17112
18112
19112
20112
21112
22112
23112
24112
25112
26112
27112
28123
29123
30123
31123

How July really feels in Rolleston

Once humidity and wind are folded in, July averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in July is cold — wind chill drags the overnight "feels like" below the raw low.

Rolleston weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 12°538.114.96.8
Feb22° / 12°416.113.87.1
Mar20° / 10°446.512.46.8
Apr17° / 518.410.85.7
May14° / 4889.54.4
Jun11° / 5898.83.0
Jul11° / 548.29.12.8
Aug12° / 549.810.23.4
Sep14° / 509.411.74.4
Oct16° / 5710.813.25.1
Nov18° / 579.814.55.9
Dec20° / 11°599.815.26.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 14% of July, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35347
45248
55248
65248
75248
85248
95149
105050
114951
124951
134852
144852
154852
164852
174852
184852
194852
204852
214852
224852
234951
244951
254951
264951
274951
285050
295050
305050
314951

Chance of precipitation in July

Any precipitation

Rolleston gets around 54 mm of rain and snow over 8.2 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 27% and peaks near 28% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
426
526
626
725
825
925
1026
1126
1226
1327
1427
1527
1628
1728
1828
1928
2028
2128
2228
2328
2428
2528
2628
2728
2828
2928
3028
3128

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in July

Winds average 10 km/h in July, the calmest month.

Across July, daily wind ranges from about 10 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
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 8 h 48 min at the start of July to 9 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over July. Sunrise moves from 9:10 AM to 8:51 AM, and sunset from 5:58 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.89:105:58
28.89:105:58
38.89:105:59
48.89:105:59
58.89:096:00
68.99:096:00
78.99:096:01
88.99:086:02
98.99:086:02
108.99:086:03
118.99:076:04
129.09:076:05
139.09:066:05
149.09:066:06
159.09:056:07
169.19:046:08
179.19:046:09
189.19:036:10
199.19:026:10
209.29:016:11
219.29:016:12
229.29:006:13
239.38:596:14
249.38:586:15
259.38:576:16
269.48:566:17
279.48:556:18
289.48:546:19
299.58:536:20
309.58:526:21
319.58:516:22

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 1.68 kWh/m².

For context, solar energy here swings from a low near 1.46 kWh/m² to a high of 6.98 kWh/m² in January across the year — July's 1.68 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.5Dim
21.5Dim
31.5Dim
41.5Dim
51.5Dim
61.5Dim
71.6Dim
81.6Dim
91.6Dim
101.6Dim
111.6Dim
121.6Dim
131.6Dim
141.6Dim
151.6Dim
161.6Dim
171.7Dim
181.7Dim
191.7Dim
201.7Dim
211.7Dim
221.8Dim
231.8Dim
241.8Dim
251.8Dim
261.9Dim
271.9Dim
281.9Dim
291.9Dim
302.0Dim
312.0Moderate
Planning a trip in July

Is July a good time to visit Rolleston?

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

2.8
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

July is a weaker month for outdoor sightseeing in Rolleston.

What to pack for Rolleston in July

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

In July, Rolleston sees daytime highs around 11°C and nights near 2°C. Pack a warm layer. Worth having: rain gear. About 8 days see rain.

a warm layerrain gear

Sea temperature near Rolleston in July

The nearest coast averages about 9°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 32 km away) is warmest in February at about 17°C and coldest in August near 9°C.

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

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan17Cool
Feb17Cool
Mar16Cool
Apr14Bracing
May13Bracing
Jun11Bracing
Jul9Bracing
Aug9Bracing
Sep10Bracing
Oct12Bracing
Nov14Bracing
Dec15Cool

UV index in Rolleston in July

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Rolleston peaks around January 16 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateLowModerateHighVery highJan 16UV 11Jun 17UV 1
UV index (midday)Level
Jan11Extreme
Feb10Very high
Mar6High
Apr3Moderate
May2Low
Jun1Low
Jul2Low
Aug2Moderate
Sep4Moderate
Oct6High
Nov8Very high
Dec10Very high
Location & terrain

Where is Rolleston?

Rolleston sits at 43.6°S, 172.4°E, 60 m above sea level, in New Zealand. The nearest listed city is Christchurch, 21 km away.

TimaruTekapoKaikouraFranz JosefRichmond

Topography around Rolleston

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

Within 3 km, the terrain around Rolleston has only modest variations in elevation — a maximum elevation change of 45 m around an average of 59 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 166 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,161 m.

The land around Rolleston is covered by grassland (42%) and cropland (27%) within 3 km, grassland (52%) and cropland (30%) within 16 km, and water (37%) and grassland (36%) within 80 km.

3 km
45 m
16 km
166 m
80 km
2,161 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Christchurch 21 km · Rangiora 35 km · Ashburton 63 km · Timaru 128 km · Tekapo 160 km · Kaikoura 167 km · Franz Josef 179 km · Richmond 259 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 Rolleston (-43.5833°, 172.3833°, elevation 60 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).