Alca

Name: Alca
Address: Arequipa, PE

Arequipa, Peru · 2731 m · Tue 27 Oct, 20:41 GMT-5GFS run 18 UTC · 7 h old

3°

OvercastFeels like 0°Today 2° – 11°

Tue 20:00· nowor click any hour below

Clouds thicken this evening; rain around 21:00 (about 0.1 mm). Clear and cool tonight, 1°. Tomorrow partly sunny, about as warm, up to 11°.

Right now

model value for 20:00, not a measurement

Wind3 m/s W

Gusts2 m/s

Humidity78 %

Pressure1022 hPa ↗

Cloud cover100 %

Visibility23 km

UV index (CAMS)0 · Low

Air (US AQI, CAMS)36 · Good

Sun 30° below the horizon · sunrise 05:17 · sunset 17:52

UmbrellaYes, from 21:00Rain until 21:00, 0.1 mm in all

Kite windowThu 11:00 – 19:00Wind 5–7 m/s, gusts under 8; not today: rain

Longest dry spell42 h from Thu 23:00Dry until Sat 17:00

TonightLow 1° at 05:00Clear, light wind; ground frost possible

Next 24 hours

Click any hour: the sky, the panel, the sun chart and the planner follow it

hourly steps · GFS 18 UTC

12°6°-1°

TemperatureFeels likeWind m/sGustsRain mmClouds %

Tue 20:00 · Overcast3°, feels like 0°

Wind 3 m/s from W, gusts 2 · dryClouds 100 % · humidity 78 %

Kite flying: PoorDark

Sun height

Tue 27 Oct · computed from the coordinatesUV 0 Low at 20:00 · CAMS model

Tue 27 Oct21 June, longest day21 December, shortest daythe disc shows the chosen hour

Sunrise05:17

Sunset17:52

Daylight12 h 36 min1 min longer than Monday

Highest87.5°at 11:30

Civil dawn · dusk04:55 · 18:14

Moon

from the coordinates

95 %Waning gibbouslit now, Tue 20:41Moonrise 19:39Moonset 06:10

Next phases

Last quarterSun 1 Novin 5 days

New moonMon 9 Novin 13 days

First quarterTue 17 Novin 21 days

Full moonTue 24 Novin 28 days

Outdoor planner

The next 24 hours rated for six activities by fixed rules from this forecast, not by AI

How we rate ›

Planner rules, per hour. Avoid: thunder; gusts from 17 m/s (kite 15, picnic 14); rain from 1.0 mm (kite, laundry, picnic, car wash: any rain; laundry also rain within 3 h). Poor: storms due within 2 h (kite 3 h); dark (sun below −6°) or after sunset; light rain; strong gusts; humid air (laundry 85 % and up); chilly (picnic under 12°); rain within 12 h (car wash). Excellent: running 8°–18° with wind under 7 and Good air; cycling 10°–24° with wind under 6; kite wind 4–8 with gusts under 11; laundry humidity under 70 % with a breeze; picnic 16° and up with wind under 6. Anything else: Good.

You are here (now)Kite flying, hour by hour · click a block

now23020508111417

ExcellentGoodPoorAvoidAir quality is Good all the next 24 h, so it changes nothing today

Best timeWed 13:00 – 18:00Excellent · Steady 8 m/s, gusts 10

AvoidFrom Wed 18:00Rain

At Tue 20:00PoorDark

Air quality

US AQI · CAMS model

GoodMain pollutant O₃Model value, not a station. 24-hour PM and 8-hour ozone averages.

Good 0–50Moderate 51–100Unhealthy 101–300Hazardous 301+

PM2.55 µg/m³10

PM1032 µg/m³10

O₃65 µg/m³36

NO₂1 µg/m³0

Next 24 h · Good all the next 24 h

6 days

click a day for its details · high / low · rain

October – November 2026dashed: GFS only, read as a trend

MonTueWedThuFriSatSun

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6-day outlook

by each day’s icon

Click a tile to light up those days. Tue 27 Oct – Sun 1 Nov come from GFS alone: a trend, not a promise.

Tuesday 27 Oct

Today

11° / 2°Sunny

Rain0.1 mmStrongest gust6 m/sSunrise · sunset05:17 · 17:52Moon at noon97 % · waning gibbous

GFS only: no comparisonSee its hours ›

Do the models agree?

daily high, °C

GFSICON (no run here)ECMWF (no run here)spread

Only GFS reaches this place and these days: no other model to compare with.

Places nearby

now · within 25 km

3°Huaynacotas5.0 km 2°Puyca11 km 3°Ayahuasi3.0 km 3°Cahuana2.0 km

About this forecastNOAA GFS · run Tue 18 UTC · grid point 13 km away, model height 4453 m (real 2731 m) · values of the nearest grid point, nothing filled in · model forecast, not an observation

Model: NOAA GFS, 0.25° global grid
Model run: Tue 27 Oct, 13:00 GMT-5 (7 h ago)
Covers until: Sun 01 Nov, 13:00 GMT-5
Grid point used: 15.25° S, 72.75° W — 13 km from Alca, model terrain height 4453 m
Air quality and UV: CAMS global air quality forecast (0.4°), nearest step
Compared with: no other model reaches this place
Method: Values of the nearest model grid point; nothing is interpolated or filled in. Sun and moon computed from the coordinates.

Alca

Arequipa · 2731 m · Tue 27 Oct, 20:41 GMT-5

GFS run 18 UTC · 7 h old

3°

OvercastFeels like 0°Today 2° – 11°

Tue 20:00· now

Clouds thicken this evening; rain around 21:00 (about 0.1 mm). Clear and cool tonight, 1°. Tomorrow partly sunny, about as warm, up to 11°.

Wind3 WGusts2 m/sRaindryAir (AQI)36 Good

UmbrellaYes, from 21:00until 21:00, 0.1 mm

Kite windowThu 11–19not today: rain

Dry spell42 h from Thu 23:00until Sat 17:00

TonightLow 1° at 05:00clear, ground frost possible

Next 24 hours

swipe sideways · tap an hour

Temperature, -1° to 12° · hourly GFS steps

Rows: time · sky · °C · feels like · wind m/s · gusts (orange from 14) · rain mm · clouds %. Shaded: night.

Tue 20:00 · Overcast3°, feels like 0°

Kite flying: PoorDark

Wind3 m/s WGusts2 m/sHumidity78 %Pressure1022 hPa ↗Clouds100 %Visibility23 kmUV (CAMS)0 LowUS AQI36 Good

model value for 20:00, not a measurement

Sun height

Tue 27 Oct

UV 0 Low at 20:00 · CAMS model

Tue 27 Oct21 June21 December

Sunrise · sunset05:17 · 17:52

Daylight12 h 36 min

Highest87.5° at 11:30

Civil dawn · dusk04:55 · 18:14

Outdoor planner

next 24 h, rated by fixed rules from this forecast

How we rate ›

You are hereKite flying, hour by hour

now020814

ExcellentGoodPoorAvoid

Best timeWed 13:00 – 18:00Excellent · Steady 8 m/s, gusts 10

AvoidFrom Wed 18:00Rain

At Tue 20:00PoorDark

Air quality

US AQI · CAMS model

GoodMain pollutant O₃Model value, not a station. 24-hour PM and 8-hour ozone averages.

Good
0–50Moderate
51–100Unhealthy
101–300Hazardous
301+

PM2.55 µg/m³10

PM1032 µg/m³10

O₃65 µg/m³36

NO₂1 µg/m³0

Next 24 h · Good all the next 24 h · tap a bar

Moon

from the coordinates

95 %Waning gibbouslit now, Tue 20:41Rise 19:39 · set 06:10

Next phases

Last quarterSun 1 Novin 5 days

New moonMon 9 Novin 13 days

First quarterTue 17 Novin 21 days

Full moonTue 24 Novin 28 days

6 days

tap a day for its details

October – November 2026dashed: GFS only · – no forecast yet

MoTuWeThFrSaSu

Tuesday 27 Oct · TodaySunny

11° 2°

Rain0.1 mmGusts6Sun ↑ ↓05:17 17:52Moon97 %

GFS only: no comparisonIts hours ›

6-day outlook

by each day’s icon

Tap a tile to light up those days above. Tue 27 Oct – Sun 1 Nov come from GFS alone: a trend.

Do the models agree?

daily high

GFSICONECMWFspread

Only GFS reaches this place and these days: no other model to compare with.

Places nearby

now · within 25 km

3°Huaynacotas5.0 km 2°Puyca11 km 3°Ayahuasi3.0 km 3°Cahuana2.0 km

About this forecastNOAA GFS, run Tue 18 UTC · model forecast, not an observation

Model: NOAA GFS, 0.25° global grid
Model run: Tue 27 Oct, 13:00 GMT-5 (7 h ago)
Covers until: Sun 01 Nov, 13:00 GMT-5
Grid point used: 15.25° S, 72.75° W — 13 km from Alca, model terrain height 4453 m
Air quality and UV: CAMS global air quality forecast (0.4°), nearest step
Compared with: no other model reaches this place
Method: Values of the nearest model grid point; nothing is interpolated or filled in. Sun and moon computed from the coordinates.