Hamilton weather in July

In July, Hamilton sees average daytime highs of 14°C and overnight lows near 6°C, with 128 mm of rain across 13.5 wet days and about 9.7 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 14°C through the month. The sky is clear or mostly clear about 27% of the time in July, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of July to 10 hours by month's end. Set against the rest of the year, July is Hamilton's 4th-clearest and 6th-windiest month. For the whole year in context, see Hamilton's year-round climate.

Daytime high
14°
12th warmest
Overnight low
1st coldest
Rainfall
128 mm
13.5 wet days
Daylight
9 h 36 min
8:36 AM – 6:13 PM
Cloud cover
61%
4th clearest
Wind
13 km/h
6th windiest
Solar energy
2.03 kWh/m²
Travel score
3.6
out of 10

Hamilton is largest city in New Zealand's Waikato region.

Air quality
Excellent
PM10 13.4 µg/m³ · 2012
Density
1,734/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 14°C through the month.

A typical July day in Hamilton reaches about 14°C in the afternoon and slips back to 6°C overnight — a 8°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, July runs on par with June and on par with August.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1146
2146
3146
4146
5146
6146
7146
8146
9146
10146
11146
12146
13146
14146
15146
16146
17146
18146
19146
20146
21146
22146
23146
24146
25146
26146
27146
28146
29146
30146
31146

Hamilton weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 15°718.814.36.9
Feb24° / 15°707.913.57.1
Mar22° / 13°727.812.37.0
Apr19° / 11°919.411.16.2
May17° / 10711.6105.2
Jun14° / 11412.39.44.0
Jul14° / 12813.59.73.6
Aug14° / 12214.810.53.8
Sep16° / 11413.911.74.3
Oct17° / 10°10012.7135.1
Nov19° / 11°8811.1145.7
Dec21° / 13°991114.66.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45050
55050
65050
75050
84951
94753
104654
114654
124555
134555
144456
154456
164555
174456
184456
194456
204456
214555
224555
234654
244654
254555
264555
274555
284555
294555
304456
314456

Chance of precipitation in July

Any precipitation

Hamilton gets around 128 mm of rain over 13.5 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 44% and peaks near 47% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
143
243
343
443
543
643
743
843
943
1043
1144
1244
1344
1444
1544
1644
1744
1845
1945
2045
2145
2245
2345
2445
2545
2645
2746
2846
2946
3047
3147

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5982
6982
7982
8982
9982
10982
11982
12982
13982
14982
15982
16982
17973
18973
19973
20982
21982
22982
23982
24982
25982
26982
27982
28982
29982
30991
31991

Wind in July

Winds average 13 km/h in July.

Across July, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 9 h 24 min at the start of July to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over July. Sunrise moves from 8:40 AM to 8:25 AM, and sunset from 6:05 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.48:406:05
29.48:406:05
39.48:406:06
49.48:406:06
59.58:396:06
69.58:396:07
79.58:396:08
89.58:396:08
99.58:396:09
109.58:386:09
119.58:386:10
129.58:386:11
139.68:376:11
149.68:376:12
159.68:366:12
169.68:366:13
179.68:356:14
189.78:356:15
199.78:346:15
209.78:346:16
219.78:336:17
229.88:326:18
239.88:326:18
249.88:316:19
259.88:306:20
269.98:296:21
279.98:296:22
289.98:286:22
299.98:276:23
3010.08:266:24
3110.08:256:25

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 2.03 kWh/m².

For context, solar energy here swings from a low near 1.84 kWh/m² to a high of 6.61 kWh/m² in January across the year — July's 2.03 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.9Dim
21.9Dim
31.9Dim
41.9Dim
51.9Dim
61.9Dim
71.9Dim
81.9Dim
91.9Dim
101.9Dim
112.0Dim
122.0Dim
132.0Dim
142.0Dim
152.0Dim
162.0Dim
172.0Moderate
182.0Moderate
192.0Moderate
202.0Moderate
212.0Moderate
222.1Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.1Moderate
272.2Moderate
282.2Moderate
292.2Moderate
302.2Moderate
312.3Moderate
Planning a trip in July

Hazard calendar for Hamilton

In seasonPeak

None of Hamilton's seasonal hazards are active in July. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Hamilton sits in the South Indian Ocean cyclone belt; the season peaks January–March.

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

Is July a good time to visit Hamilton?

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

3.6
Sightseeing
12th-best month of the year
0.0
Beach & pool
12th-best month of the year

July is a weaker month for outdoor sightseeing in Hamilton.

What to pack for Hamilton in July

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

In July, Hamilton sees daytime highs around 14°C and nights near 6°C. Worth packing: a warm layer and rain gear. About 14 days see rain.

a warm layerrain gear

Sea temperature near Hamilton in July

The nearest coast averages about 14°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 40 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 17 to Mar 15 — about 1.9 months when the water holds above 20°C.

15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan20Refreshing
Feb21Refreshing
Mar20Refreshing
Apr19Cool
May17Cool
Jun15Cool
Jul14Bracing
Aug14Bracing
Sep14Bracing
Oct15Cool
Nov17Cool
Dec19Cool

UV index in Hamilton 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 Hamilton peaks around January 12 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 highModerateModerateVery highExtremeJan 12UV 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 Hamilton?

Hamilton sits at 37.8°S, 175.3°E, 39 m above sea level, in New Zealand. The nearest listed city is Hamilton East, 1.0 km away.

Topography around Hamilton

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

Within 3 km, the terrain around Hamilton has only modest variations in elevation — a maximum elevation change of 59 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 166 m; within 80 km, large variations in elevation — a maximum elevation change of 1,023 m.

The land around Hamilton is covered by artificial surfaces (57%) and trees (23%) within 3 km, grassland (67%) within 16 km, and grassland (51%) and trees (26%) within 80 km.

3 km
59 m
16 km
166 m
80 km
1,023 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Hamilton East 1.0 km · Cambridge 17 km · Pukekohe East 71 km · Tauranga 78 km · Papakura 85 km · Takanini 88 km · Manurewa 92 km · Rotorua 93 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 Hamilton (-37.7833°, 175.2833°, elevation 39 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).