Belfast weather in March

In March, Belfast sees average daytime highs of 23°C and overnight lows near 12°C, with 97 mm of rain across 11.8 wet days and about 12.2 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 41% of the time in March, and the air most often feels dry.

Daylight stretches from about 12 h 36 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Belfast's 8th-clearest and 11th-windiest month. For the whole year in context, see Belfast's year-round climate.

Daytime high
23°
6th warmest
Overnight low
12°
9th coldest
Rainfall
97 mm
11.8 wet days
Daylight
12 h 12 min
6:04 AM – 6:15 PM
Cloud cover
49%
8th clearest
Wind
9 km/h
11th windiest
Solar energy
5.41 kWh/m²
Travel score
6.7
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 March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical March day in Belfast reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, March runs about 1°C cooler than February and about 2°C warmer than April.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32313
42313
52313
62313
72313
82313
92313
102313
112312
122312
132312
142312
152312
162312
172312
182312
192312
202312
212312
222312
232212
242212
252212
262212
272212
282212
292212
302211
312211

How March really feels in Belfast

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

March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Belfast weather by month

How March compares with the rest of the year at a glance. March is the 6th-warmest and 5th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 21% of March, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
26040
36040
46139
56238
66238
76238
86337
96436
106436
116337
126337
136337
146337
156238
166139
176139
186139
196040
206040
216139
226139
236139
246238
256238
266238
276238
286337
296337
306238
316337

Chance of precipitation in March

Any precipitation

Belfast gets around 97 mm of rain over 11.8 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
240
339
439
538
638
738
838
938
1038
1138
1238
1339
1439
1539
1639
1740
1840
1940
2040
2139
2238
2338
2437
2536
2635
2734
2833
2932
3031
3130

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 61% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
145478
247458
349448
451427
552417
654397
756386
856386
957376
1059365
1159365
1259365
1360364
1460364
1561363
1661363
1761363
1862362
1962362
2063352
2164351
2264351
2365341
2466331
2567321
2668311
2771290
2872280
2974260
3076240
3177230

Wind in March

Winds average 9 km/h in March.

Across March, daily wind ranges from about 9 km/h on the calmest days to 10 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
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 36 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over March. Sunrise moves from 5:56 AM to 6:11 AM, and sunset from 6:30 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:566:30
212.55:576:29
312.55:576:28
412.55:586:27
512.55:586:26
612.45:596:25
712.45:596:24
812.46:006:23
912.46:006:22
1012.36:016:21
1112.36:016:20
1212.36:026:19
1312.36:026:18
1412.26:036:17
1512.26:036:16
1612.26:046:15
1712.26:046:14
1812.16:056:13
1912.16:056:12
2012.16:066:11
2112.16:066:10
2212.06:076:09
2312.06:076:08
2412.06:086:06
2512.06:086:05
2611.96:096:04
2711.96:096:03
2811.96:096:02
2911.96:106:01
3011.86:106:00
3111.86:115:59

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.41 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 — March's 5.41 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in March

Hazard calendar for Belfast

In seasonPeak

In March, Belfast sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

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 March a good time to visit Belfast?

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

6.7
Sightseeing
8th-best month of the year
5.0
Beach & pool
4th-best month of the year

March is a reasonable time to visit Belfast for sightseeing.

What to pack for Belfast in March

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

In March, Belfast sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Belfast in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 13 (very high — sun protection essential). 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 March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March 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
March 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).