Hilo weather in March

In March, Hilo sees average daytime highs of 72°F and overnight lows near 67°F, with 9.1 in of rain across 23.5 wet days and about 11.9 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 72°F through the month. The sky is clear or mostly clear about 24% of the time in March, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Hilo's 10th-clearest and 2nd-windiest month. For the whole year in context, see Hilo's year-round climate.

Daytime high
72°
11th warmest
Overnight low
67°
2nd coldest
Rainfall
9.1 in
23.5 wet days
Daylight
11 h 54 min
6:34 AM – 6:26 PM
Cloud cover
62%
10th clearest
Wind
7 mph
2nd windiest
Solar energy
5.42 kWh/m²
Travel score
4.7
out of 10

Hilo is human settlement and census-designated place in Hawaii, United States.

Density
287/km²
people per km²

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 72°F through the month.

A typical March day in Hilo reaches about 72°F in the afternoon and slips back to 67°F overnight — a 5°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 75°F. Set against its neighbours, March runs on par with February and on par with April.

60°65°70°75°80°151015202531
Avg high (°F)Avg low (°F)
17267
27267
37267
47267
57267
67267
77267
87267
97267
107267
117267
127267
137267
147267
157267
167267
177267
187267
197267
207267
217267
227267
237367
247367
257367
267367
277367
287367
297367
307367
317367

Hilo weather by month

How March compares with the rest of the year at a glance. March is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan73° / 67°5.816.810.96.0
Feb72° / 67°6.617.211.35.5
Mar72° / 67°9.123.511.94.7
Apr73° / 68°7.124.812.44.5
May74° / 69°5.723.712.94.9
Jun75° / 70°4.724.113.24.8
Jul76° / 71°5.725.813.14.6
Aug77° / 72°6.725.612.74.6
Sep77° / 72°4.52212.15.1
Oct77° / 71°5.42311.55.0
Nov75° / 70°7.523.211.14.8
Dec73° / 68°7.922.210.85.1

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 26% of March, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35347
45347
55347
65347
75347
85347
95347
105347
115248
125149
135149
145050
155050
165050
174852
184852
194753
204753
214753
224654
234654
244654
254753
264753
274852
284852
294852
304852
314951

Chance of precipitation in March

Any precipitation

Hilo gets around 9.1 in of rain over 23.5 wet days in March, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 76% and peaks near 83% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
169
269
370
470
570
671
771
872
972
1073
1173
1274
1374
1475
1576
1676
1777
1877
1978
2078
2179
2279
2380
2480
2581
2681
2782
2882
2982
3082
3183

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the humid band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 28% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12175625
22165725
32165725
42165725
52165725
62165725
72155726
81155826
91145926
101145926
111145926
121136026
131136026
141136026
151126126
161126126
171126027
181116127
191116028
200116128
210106129
220106129
23096130
24096031
25096031
26086032
27085933
28085933
29085834
30085834
31085834

Wind in March

Winds average 7 mph in March.

Across March, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
177light breeze
187light breeze
197light breeze
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 36 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over March. Sunrise moves from 6:46 AM to 6:21 AM, and sunset from 6:21 PM to 6:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:466:21
211.66:466:21
311.66:456:22
411.66:446:22
511.76:436:22
611.76:426:23
711.76:426:23
811.76:416:23
911.76:406:24
1011.76:396:24
1111.86:386:24
1211.86:386:25
1311.86:376:25
1411.86:366:25
1511.86:356:26
1611.96:346:26
1711.96:336:26
1811.96:326:26
1911.96:326:27
2011.96:316:27
2112.06:306:27
2212.06:296:27
2312.06:286:28
2412.06:276:28
2512.06:266:28
2612.16:256:29
2712.16:246:29
2812.16:246:29
2912.16:236:29
3012.16:226:30
3112.16:216:30

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.42 kWh/m².

For context, solar energy here swings from a low near 4.17 kWh/m² to a high of 6.68 kWh/m² in June across the year — March's 5.42 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.6Bright
245.6Bright
255.6Bright
265.7Bright
275.7Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in March

Hazard calendar for Hilo

In seasonPeak

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

Hilo sits in the eastern Pacific hurricane zone; the season peaks August–September.

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

Is March a good time to visit Hilo?

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

4.7
Sightseeing
9th-best month of the year
3.5
Beach & pool
11th-best month of the year

March is a reasonable time to visit Hilo for sightseeing.

What to pack for Hilo in March

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

In March, Hilo sees daytime highs around 72°F and nights near 67°F. Pack rain gear. Worth having: light clothes and sun protection. About 24 days see rain.

rain gearlight clothessun protection

Sea temperature near Hilo in March

The nearest coast averages about 75°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 11 mi away) is warmest in September at about 80°F and coldest in March near 75°F.

The water stays above 68°F all year — warm enough for a swim any month.

74°76°78°80°82°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan76Warm
Feb75Warm
Mar75Warm
Apr76Warm
May77Warm
Jun78Warm
Jul79Warm
Aug79Warm
Sep80Warm
Oct80Warm
Nov78Warm
Dec77Warm

UV index in Hilo in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March 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 Hilo peaks around August 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighAug 15UV 14Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr14Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Hilo 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 Hilo is worst in January — around 28 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (July, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 2128 µg/m³Jul 1917 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb27Moderate
Mar26Moderate
Apr23Moderate
May22Moderate
Jun19Moderate
Jul16Moderate
Aug18Moderate
Sep21Moderate
Oct25Moderate
Nov22Moderate
Dec24Moderate
Location & terrain

Where is Hilo?

Hilo sits at 19.7°N, 155.1°W, 59 ft above sea level, in United States. The nearest listed city is Kīhei, 113 mi away.

Topography around Hilo

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Hilo.

Within 2 miles, the terrain around Hilo has only modest variations in elevation — a maximum elevation change of 774 ft around an average of 197 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,606 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 13,750 ft.

The land around Hilo is covered by trees (34%), water (29%) and grassland (22%) within 2 miles, trees (42%) and water (29%) within 10 miles, and water (49%) and grassland (20%) within 50 miles.

2 miles
774 ft
10 miles
3,606 ft
50 miles
13,750 ft
treesshrubsgrasslandartificial surfacesbare terrainwater
March weather nearby: Kīhei 113 mi · Kahului 120 mi · Wailuku 122 mi · Lahaina 130 mi · Hawai‘i Kai 201 mi · East Honolulu 201 mi · Niu Valley 202 mi · Kuliouou - Kalani Iki 203 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 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 Hilo (19.7299°, -155.0907°, elevation 59 ft), 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. 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).