Belfast weather in July

In July, Belfast sees average daytime highs of 17°C and overnight lows near 3°C, with 6 mm of precipitation across 0.8 wet days and about 10.6 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 83% of the time in July, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of July to 10 h 48 min by month's end. Set against the rest of the year, July is Belfast's 2nd-clearest and 5th-windiest month. For the whole year in context, see Belfast's year-round climate.

Daytime high
17°
11th warmest
Overnight low
1st coldest
Precipitation
6 mm
0.8 wet days
Daylight
10 h 30 min
6:49 AM – 5:22 PM
Cloud cover
16%
2nd clearest
Wind
10 km/h
5th windiest
Solar energy
4.22 kWh/m²
Travel score
7.2
out of 10

Belfast is town in South Africa.

Founded
1890

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 17°C through the month.

A typical July day in Belfast reaches about 17°C in the afternoon and slips back to 3°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 20°C. Set against its neighbours, July runs on par with June and about 3°C cooler than August.

10°20°151015202531
Avg high (°C)Avg low (°C)
1163
2163
3162
4162
5162
6162
7162
8162
9162
10162
11162
12162
13162
14162
15172
16172
17172
18173
19173
20173
21173
22173
23173
24173
25173
26173
27173
28183
29183
30184
31184

How July really feels in Belfast

Once humidity and wind are folded in, July averages 0 days that feel above 32°C and 21 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
21
wind chill below the day's low

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

Belfast weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 14°1401713.45.9
Feb24° / 14°10212.312.96.4
Mar23° / 12°9711.812.26.7
Apr21° / 10°476.611.47.2
May19° / 142.510.87.8
Jun17° / 50.910.47.2
Jul17° / 60.810.67.2
Aug19° / 111.911.18.2
Sep23° / 224.211.88.2
Oct23° / 11°7711.812.66.8
Nov23° / 12°12215.613.35.9
Dec24° / 13°15518.913.65.6

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 83% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 8% of July, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
29010
39010
49010
59010
69010
79010
89010
99010
109010
11919
12919
13919
14919
15928
16937
17937
18937
19937
20946
21937
22937
23937
24937
25937
26937
27937
28928
29928
30928
31928

Chance of precipitation in July

Any precipitation

Belfast gets around 6 mm of rain and snow over 0.8 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 3% and peaks near 5% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
13
23
33
43
52
62
72
82
92
102
112
122
132
142
152
162
172
182
192
203
213
223
233
244
254
264
274
284
295
305
315

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.

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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3111calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 10 h 24 min at the start of July to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over July. Sunrise moves from 6:51 AM to 6:43 AM, and sunset from 5:16 PM to 5:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.46:515:16
210.46:515:16
310.46:515:16
410.46:515:17
510.46:515:17
610.46:515:17
710.56:515:18
810.56:515:18
910.56:515:19
1010.56:505:19
1110.56:505:19
1210.56:505:20
1310.56:505:20
1410.56:505:21
1510.56:505:21
1610.56:495:22
1710.66:495:22
1810.66:495:23
1910.66:485:23
2010.66:485:24
2110.66:485:24
2210.66:475:25
2310.66:475:25
2410.66:475:25
2510.76:465:26
2610.76:465:26
2710.76:455:27
2810.76:455:27
2910.76:445:28
3010.76:445:28
3110.86:435:29

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.22 kWh/m².

For context, solar energy here swings from a low near 3.98 kWh/m² to a high of 6.39 kWh/m² in December across the year — July's 4.22 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
34.0Moderate
44.0Moderate
54.0Bright
64.0Bright
74.0Bright
84.0Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.6Bright
Planning a trip in July

Hazard calendar for Belfast

In seasonPeak

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

Belfast's rainy season runs October–March, when most of the year's rain falls.

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

Is July a good time to visit Belfast?

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

7.2
Sightseeing
4th-best month of the year
1.5
Beach & pool
12th-best month of the year

July is one of the better times to visit Belfast for general sightseeing.

What to pack for Belfast in July

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

In July, Belfast sees daytime highs around 17°C and nights near 3°C. Worth packing: a warm layer.

a warm layer

UV index in Belfast in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Belfast peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 13UV 14Jun 20UV 6
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr8Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep10Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Belfast in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Belfast is worst in August — around 32 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (December, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1432 µg/m³Dec 209 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar13Moderate
Apr16Moderate
May21Moderate
Jun24Moderate
Jul30Moderate
Aug32Moderate
Sep27Moderate
Oct18Moderate
Nov13Moderate
Dec9Good
Location & terrain

Where is Belfast?

Belfast sits at 25.7°S, 30.0°E, 1,873 m above sea level, in South Africa. The nearest listed city is Carolina, 43 km away.

Topography around Belfast

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

Within 3 km, the terrain around Belfast has only modest variations in elevation — a maximum elevation change of 97 m around an average of 1,882 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 440 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,596 m.

The land around Belfast is covered by grassland (58%) within 3 km, grassland (71%) within 16 km, and grassland (63%) within 80 km.

3 km
97 m
16 km
440 m
80 km
1,596 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Carolina 43 km · Middelburg 58 km · Hendrina 61 km · Breyten 68 km · Lydenburg 78 km · Emalahleni 83 km · Nhlazatje 85 km · Lukwatini 89 km

South Africa travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / M / N
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
5.0 / 10
World Happiness, 2025
Safe drinking water
68%
of population, 2024
Homicide rate
43.7
per 100k, 2022
Road deaths
22.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very high
EF EPI 602
Religion
Christian 86%or other traditional African religions 5%nothing in particular 5%Muslim 2%

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 Belfast (-25.6899°, 30.035°, elevation 1,873 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).