Arequipa weather in October

In October, Arequipa sees average daytime highs of 21°C and overnight lows near 10°C, with 7 mm of rain across 2 wet days and about 12.4 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 48% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 06 min at the start of October to 12 h 36 min by month's end. Set against the rest of the year, October is Arequipa's 6th-clearest and 3rd-windiest month. For the whole year in context, see Arequipa's year-round climate.

Daytime high: 21°; 1st warmest
Overnight low: 10°; 7th coldest
Rainfall: 7 mm; 2 wet days
Daylight: 12 h 24 min; 5:20 AM – 5:42 PM
Cloud cover: 44%; 6th clearest
Wind: 7 km/h; 3rd windiest
Solar energy: 7.99 kWh/m²
Travel score: 7.9; out of 10

Arequipa is city of Peru, capital of Arequipa region.

Density: 1,840/km²; people per km²
Founded: 1540

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

← September Arequipa year-round climate November →Best places to visit in October

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical October day in Arequipa reaches about 21°C in the afternoon and slips back to 10°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 22°C. Set against its neighbours, October runs on par with September and on par with November.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	20	20
Avg low (°C)	9	9	9	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10

	Avg high (°C)	Avg low (°C)
1	21	9
2	21	9
3	21	9
4	21	10
5	21	10
6	21	10
7	21	10
8	21	10
9	21	10
10	21	10
11	21	10
12	21	10
13	21	10
14	21	10
15	21	10
16	21	10
17	21	10
18	21	10
19	21	10
20	21	10
21	21	10
22	21	10
23	21	10
24	21	10
25	21	10
26	21	10
27	21	10
28	21	10
29	21	10
30	20	10
31	20	10

Arequipa weather by month

How October compares with the rest of the year at a glance. October is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	17° / 10°	199	27.1	12.9	3.2
Feb	17° / 10°	225	26.9	12.6	2.8
Mar	17° / 10°	183	27.6	12.1	3.1
Apr	18° / 9°	59	14	11.6	5.4
May	20° / 8°	6	1.6	11.2	8.0
Jun	20° / 7°	1	0.2	11	8.4
Jul	19° / 6°	1	0.4	11.1	8.4
Aug	20° / 7°	2	0.6	11.5	8.5
Sep	21° / 9°	3	0.8	11.9	8.4
Oct	21° / 10°	7	2	12.4	7.9
Nov	20° / 10°	12	3.5	12.8	7.3
Dec	19° / 10°	64	12.9	13	5.5

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	79	78	77	77	76	75	75	73	73	71	71	70	68	68	66	65	64	63	62	60	60	59	58	57	57	57	56	56	57	57	57
Cloudier (%)	21	22	23	23	24	25	25	27	27	29	29	30	32	32	34	35	36	37	38	40	40	41	42	43	43	43	44	44	43	43	43

	Clearer (%)	Cloudier (%)
1	79	21
2	78	22
3	77	23
4	77	23
5	76	24
6	75	25
7	75	25
8	73	27
9	73	27
10	71	29
11	71	29
12	70	30
13	68	32
14	68	32
15	66	34
16	65	35
17	64	36
18	63	37
19	62	38
20	60	40
21	60	40
22	59	41
23	58	42
24	57	43
25	57	43
26	57	43
27	56	44
28	56	44
29	57	43
30	57	43
31	57	43

Chance of precipitation in October

Any precipitation

Arequipa gets around 7 mm of rain over 2 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 9% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	4	4	4	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	7	7	7	7	7	7	8	8	8	8	8	9

	Rain chance (%)
1	4
2	4
3	4
4	5
5	5
6	5
7	5
8	6
9	6
10	6
11	6
12	6
13	6
14	6
15	6
16	6
17	6
18	6
19	6
20	7
21	7
22	7
23	7
24	7
25	7
26	8
27	8
28	8
29	8
30	8
31	9

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in October

Winds average 7 km/h in October.

Across October, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	7	calm
2	7	calm
3	7	calm
4	7	calm
5	7	calm
6	7	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	7	calm
24	7	calm
25	7	calm
26	7	calm
27	7	calm
28	7	calm
29	7	calm
30	7	calm
31	7	calm

Sunrise & sunset in October

DaylightNight

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

Days grow by about 30 minutes over October. Sunrise moves from 5:31 AM to 5:12 AM, and sunset from 5:40 PM to 5:47 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.1	12.2	12.2	12.2	12.2	12.2	12.2	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.6	12.6	12.6
Sunrise (AM)	5:31	5:30	5:29	5:28	5:28	5:27	5:26	5:25	5:25	5:24	5:23	5:23	5:22	5:21	5:21	5:20	5:19	5:19	5:18	5:17	5:17	5:16	5:16	5:15	5:15	5:14	5:14	5:13	5:13	5:12	5:12
Sunset (PM)	5:40	5:40	5:40	5:40	5:40	5:40	5:41	5:41	5:41	5:41	5:41	5:42	5:42	5:42	5:42	5:42	5:43	5:43	5:43	5:44	5:44	5:44	5:44	5:45	5:45	5:45	5:46	5:46	5:47	5:47	5:47

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	5:31	5:40
2	12.2	5:30	5:40
3	12.2	5:29	5:40
4	12.2	5:28	5:40
5	12.2	5:28	5:40
6	12.2	5:27	5:40
7	12.2	5:26	5:41
8	12.3	5:25	5:41
9	12.3	5:25	5:41
10	12.3	5:24	5:41
11	12.3	5:23	5:41
12	12.3	5:23	5:42
13	12.3	5:22	5:42
14	12.3	5:21	5:42
15	12.4	5:21	5:42
16	12.4	5:20	5:42
17	12.4	5:19	5:43
18	12.4	5:19	5:43
19	12.4	5:18	5:43
20	12.4	5:17	5:44
21	12.4	5:17	5:44
22	12.5	5:16	5:44
23	12.5	5:16	5:44
24	12.5	5:15	5:45
25	12.5	5:15	5:45
26	12.5	5:14	5:45
27	12.5	5:14	5:46
28	12.5	5:13	5:46
29	12.6	5:13	5:47
30	12.6	5:12	5:47
31	12.6	5:12	5:47

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 7.99 kWh/m².

For context, solar energy here swings from a low near 5.28 kWh/m² to a high of 8.26 kWh/m² in November across the year — October's 7.99 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	7.7	7.8	7.8	7.8	7.8	7.8	7.8	7.9	7.9	7.9	7.9	7.9	7.9	8.0	8.0	8.0	8.0	8.0	8.0	8.1	8.1	8.1	8.1	8.1	8.1	8.2	8.2	8.2	8.2	8.2	8.2
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	7.7	Intense
2	7.8	Intense
3	7.8	Intense
4	7.8	Intense
5	7.8	Intense
6	7.8	Intense
7	7.8	Intense
8	7.9	Intense
9	7.9	Intense
10	7.9	Intense
11	7.9	Intense
12	7.9	Intense
13	7.9	Intense
14	8.0	Intense
15	8.0	Intense
16	8.0	Intense
17	8.0	Intense
18	8.0	Intense
19	8.0	Intense
20	8.1	Intense
21	8.1	Intense
22	8.1	Intense
23	8.1	Intense
24	8.1	Intense
25	8.1	Intense
26	8.2	Intense
27	8.2	Intense
28	8.2	Intense
29	8.2	Intense
30	8.2	Intense
31	8.2	Intense

Planning a trip in October

Hazard calendar for Arequipa

In seasonPeak

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

Arequipa's monsoon runs January–March, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is October a good time to visit Arequipa?

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

7.9

Sightseeing

6th-best month of the year

4.6

Beach & pool

2nd-best month of the year

October is one of the better times to visit Arequipa for general sightseeing.

What to pack for Arequipa in October

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

In October, Arequipa sees daytime highs around 21°C and nights near 10°C. Pack sun protection.

sun protection

UV index in Arequipa in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 16 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arequipa peaks around February 8 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 9 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	17	17	15	14	11	9	9	12	14	16	14	15
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	17	Extreme
Feb	17	Extreme
Mar	15	Extreme
Apr	14	Extreme
May	11	Extreme
Jun	9	Very high
Jul	9	Very high
Aug	12	Extreme
Sep	14	Extreme
Oct	16	Extreme
Nov	14	Extreme
Dec	15	Extreme

Location & terrain

Where is Arequipa?

Arequipa sits at 16.4°S, 71.5°W, 2,397 m above sea level, in Peru. The nearest listed city is Selva Alegre, 3.0 km away.

Topography around Arequipa

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

Within 3 km, the terrain around Arequipa has significant variations in elevation — a maximum elevation change of 267 m around an average of 2,361 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 3,004 m; within 80 km, extreme variations in elevation — a maximum elevation change of 6,186 m.

The land around Arequipa is covered by artificial surfaces (73%) within 3 km, bare terrain (44%) and shrubs (27%) within 16 km, and bare terrain (66%) and grassland (20%) within 80 km.

3 km

267 m

artificial surfaces 73%

16 km

3,004 m

bare terrain 44%

80 km

6,186 m

bare terrain 66%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← September Arequipa year-round climate November →Best places to visit in October

October weather nearby: Selva Alegre 3.0 km · Ciudad Satelite 4.0 km · Jacobo Hunter 5.0 km · Cono Norte 10 km · El Pedregal 70 km · Mollendo 86 km · Moquegua 109 km · San Antonio 112 km

Peru travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type A / B / C; 220 V · 60 Hz
Prices: ≈ 51% of US; price level, 2025
GDP per capita: $9,684; 2025
Happiness: 6.0 / 10; World Happiness, 2025
Safe drinking water: 49%; of population, 2024
Homicide rate: 8.6; per 100k, 2021
Road deaths: 13.6; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Moderate; EF EPI 519
Religion

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 Arequipa (-16.399°, -71.5375°, elevation 2,397 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	21	9
2	21	9
3	21	9
4	21	10
5	21	10
6	21	10
7	21	10
8	21	10
9	21	10
10	21	10
11	21	10
12	21	10
13	21	10
14	21	10
15	21	10
16	21	10
17	21	10
18	21	10
19	21	10
20	21	10
21	21	10
22	21	10
23	21	10
24	21	10
25	21	10
26	21	10
27	21	10
28	21	10
29	21	10
30	20	10
31	20	10

	Clearer (%)	Cloudier (%)
1	79	21
2	78	22
3	77	23
4	77	23
5	76	24
6	75	25
7	75	25
8	73	27
9	73	27
10	71	29
11	71	29
12	70	30
13	68	32
14	68	32
15	66	34
16	65	35
17	64	36
18	63	37
19	62	38
20	60	40
21	60	40
22	59	41
23	58	42
24	57	43
25	57	43
26	57	43
27	56	44
28	56	44
29	57	43
30	57	43
31	57	43

	Rain chance (%)
1	4
2	4
3	4
4	5
5	5
6	5
7	5
8	6
9	6
10	6
11	6
12	6
13	6
14	6
15	6
16	6
17	6
18	6
19	6
20	7
21	7
22	7
23	7
24	7
25	7
26	8
27	8
28	8
29	8
30	8
31	9

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	21	9
2	21	9
3	21	9
4	21	10
5	21	10
6	21	10
7	21	10
8	21	10
9	21	10
10	21	10
11	21	10
12	21	10
13	21	10
14	21	10
15	21	10
16	21	10
17	21	10
18	21	10
19	21	10
20	21	10
21	21	10
22	21	10
23	21	10
24	21	10
25	21	10
26	21	10
27	21	10
28	21	10
29	21	10
30	20	10
31	20	10

	Clearer (%)	Cloudier (%)
1	79	21
2	78	22
3	77	23
4	77	23
5	76	24
6	75	25
7	75	25
8	73	27
9	73	27
10	71	29
11	71	29
12	70	30
13	68	32
14	68	32
15	66	34
16	65	35
17	64	36
18	63	37
19	62	38
20	60	40
21	60	40
22	59	41
23	58	42
24	57	43
25	57	43
26	57	43
27	56	44
28	56	44
29	57	43
30	57	43
31	57	43

	Rain chance (%)
1	4
2	4
3	4
4	5
5	5
6	5
7	5
8	6
9	6
10	6
11	6
12	6
13	6
14	6
15	6
16	6
17	6
18	6
19	6
20	7
21	7
22	7
23	7
24	7
25	7
26	8
27	8
28	8
29	8
30	8
31	9

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	21	9
2	21	9
3	21	9
4	21	10
5	21	10
6	21	10
7	21	10
8	21	10
9	21	10
10	21	10
11	21	10
12	21	10
13	21	10
14	21	10
15	21	10
16	21	10
17	21	10
18	21	10
19	21	10
20	21	10
21	21	10
22	21	10
23	21	10
24	21	10
25	21	10
26	21	10
27	21	10
28	21	10
29	21	10
30	20	10
31	20	10

	Clearer (%)	Cloudier (%)
1	79	21
2	78	22
3	77	23
4	77	23
5	76	24
6	75	25
7	75	25
8	73	27
9	73	27
10	71	29
11	71	29
12	70	30
13	68	32
14	68	32
15	66	34
16	65	35
17	64	36
18	63	37
19	62	38
20	60	40
21	60	40
22	59	41
23	58	42
24	57	43
25	57	43
26	57	43
27	56	44
28	56	44
29	57	43
30	57	43
31	57	43

	Rain chance (%)
1	4
2	4
3	4
4	5
5	5
6	5
7	5
8	6
9	6
10	6
11	6
12	6
13	6
14	6
15	6
16	6
17	6
18	6
19	6
20	7
21	7
22	7
23	7
24	7
25	7
26	8
27	8
28	8
29	8
30	8
31	9

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100