AI-generatedCallao at a glance
- Best time
- Apr – Jan
- Warmest month
- Mar · 28°
- Warmest sea
- Feb · 21.3°
- Sunshine a year
- 2,570 h
- Rain a year
- 102 mm
- Climate
- Dry subtropical
- Time zone
- UTC−5
- Elevation
- 5 m
Climate in Callao
Callao has a dry subtropical climate: mild to warm all year, with very little rain. March is the warmest month with average highs of 28 °C, while August is the coolest at 21 °C. With around 2,570 hours of sunshine a year, Callao is sunny; August is the sunniest month with 7.8 hours a day.
Holiday weather through the year
Best time to visit Callao
The best time to visit Callao is from April to January. For a beach holiday – sea from 21 °C, warm and mostly dry – go from February to March. For sightseeing, day trips and hiking, the weather is pleasant all year round. The wettest month is February with 32 mm of precipitation.
Callao through the seasons
How the weather changes over the seasons, with averages for each.
Callao in spring
Sep – Nov
Excellent
- 21–23 °C by day
- Sea 17 °C
- 7.6 h of sun a day
- 1 rainy day in all
Callao in summer
Dec – Feb
Excellent
- 25–28 °C by day
- Sea 20 °C
- 6.3 h of sun a day
- 17 rainy days in all
Callao in autumn
Mar – May
Excellent
- 24–28 °C by day
- Sea 20 °C
- 6.7 h of sun a day
- 11 rainy days in all
Callao in winter
Jun – Aug
Excellent
- 21–22 °C by day
- Sea 18 °C
- 7.5 h of sun a day
- 0 rainy days in all
Which month for what?
Beach & swimming
Feb – Mar
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
All year
15–28 °C and not too much rain
Find your perfect month
Tell us what you like and we rate every month in Callao for you.
Your best months: May, September – October
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Excellent
Best time to visit: April – January
Where to go in OctoberSea temperature in October
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 18°
- Midday, 13:00: about 22°
- Afternoon, 16:00: about 21°
- Evening, 20:00: about 18°
- Night, 23:00: about 17°
05:4418:05
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:31–06:12 · evening 17:36–18:18
- Blue hour
- Morning 05:22–05:31 · evening 18:18–18:26
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Callao compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs stay at about 22° from start to end. The days get 0.3 h longer.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 22° | 22° |
| Night-time low | 15° | 16° |
| Sea | 17° | 17° |
| Daylight | 12.2 h | 12.5 h |
What is the weather like in Callao in October?
In October, Callao is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 16.7 °C – swimming is only for the hardy. The sun shines for around 7.5 hours a day. It hardly ever rains. All in all, October is an excellent month for a holiday in Callao.
More details for October
- Daylight
- 12 h 21 min05:44 – 18:05
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−5offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Compare two months in Callao
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
October and August bring similar holiday weather to Callao (score 95 and 96). In August, days are 1 °C cooler than in October. The sea is about as warm in both months. August has one rainy day fewer.
| Month | October | August |
|---|---|---|
| Holiday weather score | 95 | 96 |
| Daytime high | 22° | 21° |
| Night-time low | 15° | 15° |
| Sea | 16.7° | 17.0° |
| Sunshine | 7.5 h | 7.8 h |
| Rainy days | 1 | 0better |
| Rainfall | 3 mm | 1 mm |
Based on the climate averages 1996–2025.
Callao month by month
The typical weather for every month at a glance.
88January27° · Sea 21° · 6.4 h
In January, Callao is warm: daytime highs average 27 °C, and even at night it stays warm at around 20 °C. The sea averages 20.7 °C – refreshing for a swim. Expect around 6.4 hours of sunshine a day. Rain falls on about 6 days, adding up to 19 mm. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Callao.
Callao in January73February28° · Sea 21° · 5.8 h
In February, Callao is hot: daytime highs average 28 °C, and even at night it stays warm at around 21 °C. The sea averages 21.3 °C – refreshing for a swim. Expect around 5.8 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 32 mm in total. The air is often humid and muggy. All in all, February is a good month for a holiday in Callao.
Callao in February75March28° · Sea 21° · 5.8 h
In March, Callao is hot: daytime highs average 28 °C, and even at night it stays warm at around 21 °C. The sea averages 21.0 °C – refreshing for a swim. Expect around 5.8 hours of sunshine a day. Rain falls on about 8 days, adding up to 26 mm. The air is often humid and muggy. All in all, March is a good month for a holiday in Callao.
Callao in March93April26° · Sea 20° · 6.9 h
In April, Callao is warm: daytime highs average 26 °C, and nights cool down to about 19 °C. The sea averages 19.5 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 6.9 hours a day. Rain is rare: about 3 days bring 7 mm in total. The air is often humid and muggy. All in all, April is an excellent month for a holiday in Callao.
Callao in April95May24° · Sea 19° · 7.5 h
In May, Callao is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. The sea averages 18.7 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.5 hours a day. It hardly ever rains. All in all, May is an excellent month for a holiday in Callao.
Callao in May94June22° · Sea 18° · 7.3 h
In June, Callao is warm: daytime highs average 22 °C, and nights cool down to about 16 °C. The sea averages 18.3 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.3 hours a day. It hardly ever rains. All in all, June is an excellent month for a holiday in Callao.
Callao in June95July21° · Sea 18° · 7.5 h
In July, Callao is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 17.7 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.5 hours a day. It hardly ever rains. All in all, July is an excellent month for a holiday in Callao.
Callao in July96August21° · Sea 17° · 7.8 h
In August, Callao is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 17.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.8 hours a day. It hardly ever rains. All in all, August is an excellent month for a holiday in Callao.
Callao in August96September21° · Sea 17° · 7.7 h
In September, Callao is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 16.8 °C – swimming is only for the hardy. The sun shines for around 7.7 hours a day. It hardly ever rains. All in all, September is an excellent month for a holiday in Callao.
Callao in September95October22° · Sea 17° · 7.5 h
In October, Callao is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 16.7 °C – swimming is only for the hardy. The sun shines for around 7.5 hours a day. It hardly ever rains. All in all, October is an excellent month for a holiday in Callao.
Callao in October95November23° · Sea 18° · 7.6 h
In November, Callao is warm: daytime highs average 23 °C, and nights cool down to about 16 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.6 hours a day. It hardly ever rains. All in all, November is an excellent month for a holiday in Callao.
Callao in November92December25° · Sea 19° · 6.7 h
In December, Callao is warm: daytime highs average 25 °C, and nights cool down to about 18 °C. The sea averages 19.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 6.7 hours a day. It hardly ever rains. All in all, December is an excellent month for a holiday in Callao.
Callao in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Callao
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Pleasant 15–20°
- Warm 20–24°
- muggy month (15+ muggy days)
PleasantOctober: nights around 15°. Ideal for sleeping, often with the window open.
The coolest nights are in August (15°), the warmest in February (21°). Tropical nights of 20 °C and more are the rule from January to March; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from April to December. It is muggy (dew point 18 °C or more) on about 111 days a year, mostly from January to April.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 88 | 27° | 20° | 20.7° | 6.4 h | 6 | 19 |
| FebruaryFeb | 73 | 28° | 21° | 21.3° | 5.8 h | 9 | 32 |
| MarchMar | 75 | 28° | 21° | 21.0° | 5.8 h | 8 | 26 |
| AprilApr | 93 | 26° | 19° | 19.5° | 6.9 h | 3 | 7 |
| MayMay | 95 | 24° | 17° | 18.7° | 7.5 h | 0 | 2 |
| JuneJun | 94 | 22° | 16° | 18.3° | 7.3 h | 0 | 2 |
| JulyJul | 95 | 21° | 15° | 17.7° | 7.5 h | 0 | 1 |
| AugustAug | 96 | 21° | 15° | 17.0° | 7.8 h | 0 | 1 |
| SeptemberSep | 96 | 21° | 15° | 16.8° | 7.7 h | 0 | 2 |
| OctoberOct | 95 | 22° | 15° | 16.7° | 7.5 h | 1 | 3 |
| NovemberNov | 95 | 23° | 16° | 17.6° | 7.6 h | 1 | 2 |
| DecemberDec | 92 | 25° | 18° | 19.0° | 6.7 h | 2 | 6 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
12.05° S, 77.13° W · 5 m · America/Lima
Sea temperature in Callao
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 15.8 – 17.9 °C
Swimming season: Jan – Mar
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Callao ranges from 16.7 °C in October to 21.3 °C in February. It is warm enough for a comfortable swim (20 °C and more) from January to March.
The sea temperature varies from year to year: in February, eight out of ten years were between 19.8 and 22.7 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 20.7° | 19.6° | 21.9° | refreshing |
| FebruaryFeb | 21.3° | 19.8° | 22.7° | refreshing |
| MarchMar | 21.0° | 19.5° | 22.5° | refreshing |
| AprilApr | 19.5° | 18.3° | 20.8° | fresh |
| MayMay | 18.7° | 17.5° | 21.0° | fresh |
| JuneJun | 18.3° | 16.8° | 21.3° | fresh |
| JulyJul | 17.7° | 16.1° | 19.6° | fresh |
| AugustAug | 17.0° | 15.8° | 18.3° | fresh |
| SeptemberSep | 16.8° | 15.6° | 18.2° | cold |
| OctoberOct | 16.7° | 15.8° | 17.9° | cold |
| NovemberNov | 17.6° | 16.5° | 18.5° | fresh |
| DecemberDec | 19.0° | 17.8° | 20.0° | fresh |
Sunshine hours in Callao
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.5 of 12.4 hours of daylight in Callao, 60 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Callao: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Callao has about one rainy day with 3 mm of rain in total.
UV index in Callao
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 13 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.
The sun is strongest in February (UV 13).
Minutes until sunburn in October
- Very fair skin
- about 10 min
- Fair skin
- about 15 min
- Light brown skin
- about 20 min
- Olive skin
- about 25 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind and clouds in Callao
How breezy and how cloudy Callao is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Callao typically peaks at 14 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 70 % of the sky over Callao: mostly cloudy, with about 7.5 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Callao
How often the day gets hot in Callao (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Callao has about 0 hot days, with an average daytime high of 22 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Callao
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Callao in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Callao has its best school-holiday weather during the summer holidays (score 96) and its weakest during the Easter holidays (score 88).
- 88
Easter holidays
Mar – Apr
Excellent
- 27 °C by day
- Sea 20 °C
- 6.6 h of sun a day
- 4 rainy days a month
Good for: Sightseeing & walks
- 95
May half-term
May – Jun
Excellent
- 23 °C by day
- Sea 19 °C
- 7.5 h of sun a day
- 0 rainy days a month
Good for: Sightseeing & walks
- 96
Summer holidays
Jul – Aug
ExcellentBest holidays
- 21 °C by day
- Sea 17 °C
- 7.7 h of sun a day
- 0 rainy days a month
Good for: Sightseeing & walks
- 95
October half-term
Oct
Excellent
- 22 °C by day
- Sea 17 °C
- 7.5 h of sun a day
- 1 rainy day a month
Good for: Sightseeing & walks
- 90
Christmas holidays
Dec – Jan
Excellent
- 26 °C by day
- Sea 20 °C
- 6.6 h of sun a day
- 4 rainy days a month
Good for: Sightseeing & walks
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 12 h 45 min
- Distance
- 10,150 km
- Time zone
- UTC−5
- Jet lag
- About 4 days (6 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Compare & alternatives
Callao compared
Put Callao side by side with another destination.
Callao vs Lima
In October the holiday weather in Callao and Lima is about equally good (score 95 vs 95). During the day Lima is 1 °C cooler than Callao. Lima gets one hour less sunshine a day.
| in October | Callao | Lima |
|---|---|---|
| Holiday weather score | 95 | 95 |
| Daytime high | 22° | 21° |
| Sea | 17° | no sea nearby |
| Sunshine | 8 h | 7 h |
| Rainy days | 1 | 1 |
| Best time | Apr – Jan | All year except Feb |
Through the year
Peru in October: the best places
In October, Callao ranks 2 of 15 destinations in this country.
- Arequipa23°99
- 2CallaoThis page22°17°95
- 3Lima21°95
- 4Trujillo23°17°94
- 5Chiclayo24°93
- 6Nazca28°80
- 7Puno18°72
- 8Huaraz20°60
Near Callao
Other destinations close by.
Places with a climate like Callao
Destinations whose weather through the year is closest to Callao's – good alternatives.
Frequently asked questions about Callao
When is the best time to visit Callao?
The best time to visit Callao is from April to January. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Callao?
The sea temperature in Callao ranges from 16.7 °C in October to 21.3 °C in February. It is warm enough for a comfortable swim (20 °C and more) from January to March.
Can you swim in Callao in October?
Only if you don't mind cold water: in October the sea averages just 16.7 °C. Comfortable swimming is possible from January to March.
What is the warmest month in Callao?
March is the warmest month, with average highs of 28 °C and nights around 21 °C. August is the coolest month at 21 °C.
When does it rain most in Callao?
The wettest month is February with 32 mm of precipitation. The driest month is August with 1 mm.
How many hours of sunshine does Callao get?
Callao gets around 2,570 hours of sunshine a year. The sunniest month is August with 7.8 hours a day; in February there are 5.8 hours a day.
What time zone is Callao in?
Callao is on UTC−5 all year.
How long is the flight from London to Callao?
A nonstop flight from London to Callao takes about 12 h 45 min, for a straight-line distance of about 10,150 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Callao?
Callao has its best school-holiday weather during the summer holidays (score 96) and its weakest during the Easter holidays (score 88). Holiday ratings (0–100): Easter holidays 88, May half-term 95, summer holidays 96, October half-term 95, Christmas holidays 90.