Charlottetown weather in August

In August, Charlottetown sees average daytime highs of 23°C and overnight lows near 16°C, with 80 mm of rain across 10.7 wet days and about 14 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 42 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Charlottetown's 1st-clearest and 11th-windiest month. For the whole year in context, see Charlottetown's year-round climate.

Daytime high
23°
2nd warmest
Overnight low
16°
11th coldest
Rainfall
80 mm
10.7 wet days
Daylight
14 hours
5:17 AM – 7:16 PM
Cloud cover
57%
1st clearest
Wind
16 km/h
11th windiest
Solar energy
5.44 kWh/m²
Travel score
6.7
out of 10

Charlottetown is capital city of the province of Prince Edward Island, Canada.

Air quality
Good
PM2.5 8 µg/m³ · 2019
Density
875/km²
people per km²
Founded
1764

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 21°C by the end.

A typical August day in Charlottetown reaches about 23°C in the afternoon and slips back to 16°C overnight — a 7°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, August runs on par with July and about 4°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12417
22417
32417
42417
52316
62316
72316
82316
92316
102316
112316
122316
132316
142316
152316
162316
172316
182316
192316
202216
212215
222215
232215
242215
252215
262215
272215
282115
292114
302114
312114

How August really feels in Charlottetown

Once humidity and wind are folded in, August 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

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

Charlottetown weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -10°8711.910.38.80.0
Feb-3° / -10°7910.29.2100.0
Mar / -6°8511.58.111.60.0
Apr / 79124.413.30.9
May13° / 7811.40.414.73.6
Jun19° / 11°8411.1015.55.7
Jul23° / 16°7210.7015.26.6
Aug23° / 16°8010.70146.7
Sep19° / 12°9410.3012.35.9
Oct13° / 9911.60.210.73.2
Nov / 10111.43.59.20.7
Dec / -5°10913.18.88.50.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34753
44852
55050
65050
75149
85149
95248
105248
115248
125347
135347
145347
155347
165347
175347
185248
195248
205347
215248
225248
235149
245248
255248
265149
275149
285149
295050
305050
315050

Chance of precipitation in August

Any precipitation

Charlottetown gets around 80 mm of rain over 10.7 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
336
436
536
636
736
836
936
1036
1136
1235
1335
1435
1534
1634
1734
1833
1933
2033
2133
2233
2333
2433
2533
2632
2732
2832
2932
3032
3132

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1133632190
2133732180
3133831180
4133831170
5133931170
6133931160
7133931160
8144031160
9144030160
10144030150
11154030150
12154029150
13163929150
14173929150
15183829140
16193829141
17203729141
18213729131
19223728131
20233628121
21243628111
22263627111
23273527100
2429352690
2531352690
2632342580
2734342480
2836332470
2937332370
3038332270
3140322160

Wind in August

Winds average 16 km/h in August.

Across August, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 42 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over August. Sunrise moves from 4:58 AM to 5:36 AM, and sunset from 7:39 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.74:587:39
214.64:597:38
314.65:017:36
414.65:027:35
514.55:037:34
614.55:047:32
714.45:057:31
814.45:077:29
914.35:087:28
1014.35:097:26
1114.25:117:25
1214.25:127:23
1314.15:137:21
1414.15:147:20
1514.05:167:18
1614.05:177:16
1713.95:187:15
1813.95:197:13
1913.85:217:11
2013.85:227:09
2113.75:237:08
2213.75:257:06
2313.65:267:04
2413.65:277:02
2513.55:297:00
2613.55:306:58
2713.45:316:56
2813.45:326:55
2913.35:346:53
3013.35:356:51
3113.25:366:49

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.44 kWh/m².

For context, solar energy here swings from a low near 1.14 kWh/m² to a high of 6.21 kWh/m² in June across the year — August's 5.44 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.5Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.1Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Is August a good time to visit Charlottetown?

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

6.7
Sightseeing
1st-best month of the year
4.9
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Charlottetown for sightseeing.

What to pack for Charlottetown in August

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

In August, Charlottetown sees daytime highs around 23°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Charlottetown in August

The nearest coast averages about 19°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 19°C and coldest in February near -1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan0Bracing
Feb-1Bracing
Mar-1Bracing
Apr1Bracing
May5Bracing
Jun11Bracing
Jul17Cool
Aug19Cool
Sep17Cool
Oct13Bracing
Nov8Bracing
Dec2Bracing

UV index in Charlottetown in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Charlottetown peaks around June 20 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 20UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May6High
Jun8Very high
Jul7Very high
Aug6High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Charlottetown?

Charlottetown sits at 46.2°N, 63.1°W, 14 m above sea level, in Canada. The nearest listed city is New Glasgow, 81 km away.

Topography around Charlottetown

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

Within 3 km, the terrain around Charlottetown has only modest variations in elevation — a maximum elevation change of 49 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 111 m; within 80 km, significant variations in elevation — a maximum elevation change of 361 m.

The land around Charlottetown is covered by water (45%) and grassland (21%) within 3 km, water (30%), grassland (25%) and trees (21%) within 16 km, and water (58%) and trees (26%) within 80 km.

3 km
49 m
16 km
111 m
80 km
361 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: New Glasgow 81 km · Dieppe 122 km · Moncton 130 km · Riverview 132 km · Lutes Mountain 137 km · Lower Sackville 168 km · Bedford 173 km · Cole Harbour 176 km

Canada travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 83% of US
price level, 2025
GDP per capita
$55,698
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 53%none 35%Muslim 5%Hindu 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 Charlottetown (46.2346°, -63.1256°, elevation 14 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. 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).