Augusta weather in May

In May, Augusta sees average daytime highs of 64°F and overnight lows near 46°F, with 3.0 in of precipitation across 10.5 wet days and about 14.5 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 60°F in the first days to 68°F by the end. The sky is clear or mostly clear about 22% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 hours at the start of May to 15 hours by month's end. Set against the rest of the year, May is Augusta's 12th-clearest and 8th-windiest month. For the whole year in context, see Augusta's year-round climate.

Daytime high
64°
5th warmest
Overnight low
46°
8th coldest
Precipitation
3.0 in
10.5 wet days
Daylight
14 h 36 min
4:18 AM – 6:53 PM
Cloud cover
67%
12th clearest
Wind
7 mph
8th windiest
Solar energy
5.45 kWh/m²
Travel score
5.5
out of 10

Augusta is capital city of the U.S. state of Maine and county seat of Kennebec County.

Density
126/km²
people per km²
Founded
1628

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 60°F in the first days to 68°F by the end.

A typical May day in Augusta reaches about 64°F in the afternoon and slips back to 46°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 53°F and 76°F. Set against its neighbours, May runs about 11°F warmer than April and about 9°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
15941
26041
36042
46042
56142
66143
76243
86243
96244
106244
116344
126344
136345
146445
156445
166446
176546
186546
196546
206547
216647
226647
236748
246748
256748
266749
276849
286849
296850
306950
316950

How May really feels in Augusta

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Augusta weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan29° / 12°3.28.86.69.10.0
Feb32° / 13°3.08.76.910.20.0
Mar40° / 23°3.810.35.911.60.2
Apr53° / 35°3.710.82.413.22.9
May64° / 46°3.010.50.114.55.5
Jun74° / 55°3.610.6015.36.5
Jul80° / 61°3.09.70156.6
Aug78° / 60°3.09.1013.86.9
Sep70° / 52°3.48.7012.36.8
Oct58° / 42°4.49.90.310.84.3
Nov45° / 31°3.59.31.99.41.1
Dec35° / 20°4.110.66.58.70.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33862
43862
53862
63961
73961
83961
93961
103961
113961
123961
133961
143961
153961
163961
173961
183961
193961
203961
214060
223862
233862
243862
253961
263961
273961
283862
293862
303763
313862

Chance of precipitation in May

Any precipitationSnow

Augusta gets around 3.0 in of rain and snow over 10.5 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 34% and peaks near 36% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1362
2362
3352
4352
5352
6351
7351
8351
9351
10351
11351
12351
13341
14341
15341
16340
17340
18340
19340
20340
21340
22330
23330
24330
25330
26330
27340
28340
29340
30340
31340

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
198200
298200
398200
498200
598200
698200
798200
898200
998200
1097300
1197300
1297300
1397300
1497300
1595410
1695410
1795410
1894510
1993610
2093610
2191720
2290820
2388921
24871021
25851131
26841231
27841231
28831331
29811441
30801541
31801541

Wind in May

Winds average 7 mph in May.

Across May, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 hours at the start of May to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 4:38 AM to 4:05 AM, and sunset from 6:35 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.04:386:35
214.04:366:36
314.04:356:37
414.14:336:38
514.14:326:40
614.24:316:41
714.24:296:42
814.34:286:43
914.34:276:45
1014.34:256:46
1114.44:246:47
1214.44:236:48
1314.54:226:49
1414.54:206:50
1514.54:196:52
1614.64:186:53
1714.64:176:54
1814.64:166:55
1914.74:156:56
2014.74:146:57
2114.84:136:58
2214.84:126:59
2314.84:117:00
2414.94:107:01
2514.94:097:02
2614.94:097:03
2714.94:087:04
2815.04:077:05
2915.04:067:06
3015.04:067:07
3115.04:057:08

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.45 kWh/m².

For context, solar energy here swings from a low near 1.47 kWh/m² to a high of 5.93 kWh/m² in July across the year — May's 5.45 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in May

Hazard calendar for Augusta

In seasonPeak

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

Augusta sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is May a good time to visit Augusta?

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

5.5
Sightseeing
5th-best month of the year
1.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Augusta for sightseeing.

What to pack for Augusta in May

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

In May, Augusta sees daytime highs around 64°F and nights near 46°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Augusta in May

The nearest coast averages about 47°F in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 mi away) is warmest in August at about 62°F and coldest in March near 38°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

40°50°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan41Bracing
Feb38Bracing
Mar38Bracing
Apr41Bracing
May47Bracing
Jun54Bracing
Jul60Cool
Aug62Cool
Sep58Bracing
Oct54Bracing
Nov49Bracing
Dec45Bracing

UV index in Augusta in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Augusta peaks around July 13 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateModerateLowJul 13UV 7Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul8Very high
Aug4Moderate
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Augusta?

Augusta sits at 44.3°N, 69.8°W, 125 ft above sea level, in United States. The nearest listed city is Waterville, 18 mi away.

Topography around Augusta

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

Within 2 miles, the terrain around Augusta has only modest variations in elevation — a maximum elevation change of 482 ft around an average of 207 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 709 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,655 ft.

The land around Augusta is covered by trees (62%) within 2 miles, trees (76%) within 10 miles, and trees (73%) and water (21%) within 50 miles.

2 miles
482 ft
10 miles
709 ft
50 miles
3,655 ft
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Waterville 18 mi · Lewiston 26 mi · Auburn 27 mi · Brunswick 29 mi · Portland 51 mi · South Portland 52 mi · Westbrook 53 mi · South Portland Gardens 53 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 Augusta (44.3106°, -69.7795°, elevation 125 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).