AI-generatedHagåtña at a glance
- Best time
- Feb – Mar
- Warmest month
- May · 32°
- Warmest sea
- Sep · 29.6°
- Sunshine a year
- 2,620 h
- Rain a year
- 2,056 mm
- Climate
- Tropical
- Time zone
- UTC+10
- Elevation
- 3 m
Climate in Hagåtña
Hagåtña has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. May is the warmest month with average highs of 32 °C, while January is the coolest at 31 °C. With around 2,620 hours of sunshine a year, Hagåtña is sunny; May is the sunniest month with 8.6 hours a day.
Holiday weather through the year
Best time to visit Hagåtña
The best time to visit Hagåtña is from February to March. For a beach holiday – sea from 21 °C, warm and mostly dry – go in March. The rainy season is from July to October; the wettest month is August with 355 mm.
Hagåtña through the seasons
How the weather changes over the seasons, with averages for each.
Hagåtña in the dry season
Nov – Jun
Fair
- 31–32 °C by day
- Sea 29 °C
- 7.9 h of sun a day
- 131 rainy days in all
Hagåtña in the rainy season
Jul – Oct
Poor
- 31–32 °C by day
- Sea 30 °C
- 5.7 h of sun a day
- 114 rainy days in all
Which month for what?
Beach & swimming
Mar
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
Jul – Oct
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Hagåtña for you.
Your best months: January – March
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: February – March
October is the peak of the typhoon season Hurricane season
Where to go in OctoberSea temperature in October
Keep in mindFrequent rainStorm season
A typical day in October
- Morning, 08:00: about 27°
- Midday, 13:00: about 31°
- Afternoon, 16:00: about 31°
- Evening, 20:00: about 28°
- Night, 23:00: about 27°
06:1118:02
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:58–06:40 · evening 17:34–18:15
- Blue hour
- Morning 05:50–05:58 · evening 18:15–18:24
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 Hagåtña compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs stay at about 31° from start to end. The sea cools from 30° to 29°. The days get 0.3 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 31° | 31° |
| Night-time low | 25° | 26° |
| Sea | 30° | 29° |
| Daylight | 12.0 h | 11.7 h |
What is the weather like in Hagåtña in October?
In October, Hagåtña is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.5 °C – almost as warm as a bath. Expect around 5.7 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 309 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in Hagåtña.
More details for October
- Daylight
- 11 h 51 min06:11 – 18:02
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 26 km/haverage daily peakAll months
- Cloud cover
- 76 %on averageAll months
- Hot days
- 31 days30 °C or moreAll months
- Time zone
- UTC+10offset from UTC
How the score comes together
- Temperatureweight 50 %45 %
- Sunshineweight 20 %45 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Compare two months in Hagåtña
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
March has the better holiday weather in Hagåtña: score 56 against 32. Daytime highs are about the same. The sea is 2 °C cooler in March. March has 16 fewer rainy days. The sun shines 3 hours longer a day in March.
| Month | October | March |
|---|---|---|
| Holiday weather score | 32 | 56better |
| Daytime high | 31° | 31° |
| Night-time low | 25° | 25° |
| Sea | 29.5° | 27.9° |
| Sunshine | 5.7 h | 8.4 hbetter |
| Rainy days | 28 | 12better |
| Rainfall | 309 mm | 49 mmbetter |
| Muggy days | 31 | 31 |
Based on the climate averages 1996–2025.
Hagåtña month by month
The typical weather for every month at a glance.
48January31° · Sea 28° · 7.3 h
In January, Hagåtña is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun shines for around 7.3 hours a day. It rains often – on about 15 days, adding up to 78 mm. On about 25 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, January is a so-so month for a holiday in Hagåtña.
Hagåtña in January55February31° · Sea 28° · 7.5 h
In February, Hagåtña is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 27.8 °C – lovely and warm for swimming. The sun shines for around 7.5 hours a day. Rain is frequent, with about 12 rainy days and 57 mm in total. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 35 km/h. All in all, February is a so-so month for a holiday in Hagåtña – and yet one of the best months here.
Hagåtña in February56March31° · Sea 28° · 8.4 h
In March, Hagåtña is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 27.9 °C – lovely and warm for swimming. The sun shines for around 8.4 hours a day. Rain is frequent, with about 12 rainy days and 49 mm in total. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, March is a so-so month for a holiday in Hagåtña – and yet one of the best months here.
Hagåtña in March50April32° · Sea 28° · 8.5 h
In April, Hagåtña is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sea averages 28.3 °C – lovely and warm for swimming. The sun shines for around 8.5 hours a day. Rain is frequent, with about 13 rainy days and 78 mm in total. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, April is a so-so month for a holiday in Hagåtña.
Hagåtña in April40May32° · Sea 29° · 8.6 h
In May, Hagåtña is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sea averages 28.9 °C – lovely and warm for swimming. The sun shines for around 8.6 hours a day. It rains often – on about 16 days, adding up to 92 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, May is a so-so month for a holiday in Hagåtña.
Hagåtña in May35June32° · Sea 29° · 8.1 h
In June, Hagåtña is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sea averages 29.4 °C – almost as warm as a bath. The sun shines for around 8.1 hours a day. It rains often – on about 22 days, adding up to 156 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, June is not an ideal month for a holiday in Hagåtña.
Hagåtña in June33July32° · Sea 30° · 6.5 h
In July, Hagåtña is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sea averages 29.5 °C – almost as warm as a bath. The sun shines for around 6.5 hours a day. It is the rainy season: rain falls on about 29 days, totalling 277 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, July is not an ideal month for a holiday in Hagåtña.
Hagåtña in July32August31° · Sea 30° · 5.4 h
In August, Hagåtña is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.5 °C – almost as warm as a bath. Expect around 5.4 hours of sunshine a day. It is the rainy season: rain falls on about 29 days, totalling 355 mm. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Hagåtña.
Hagåtña in August31September31° · Sea 30° · 5.3 h
In September, Hagåtña is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.6 °C – almost as warm as a bath. Expect around 5.3 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 327 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in Hagåtña.
Hagåtña in September32October31° · Sea 30° · 5.7 h
In October, Hagåtña is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.5 °C – almost as warm as a bath. Expect around 5.7 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 309 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in Hagåtña.
Hagåtña in October36November32° · Sea 29° · 7.1 h
In November, Hagåtña is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sea averages 29.2 °C – almost as warm as a bath. The sun shines for around 7.1 hours a day. It rains often – on about 23 days, adding up to 175 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, November is not an ideal month for a holiday in Hagåtña.
Hagåtña in November40December31° · Sea 29° · 7.6 h
In December, Hagåtña is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 28.7 °C – lovely and warm for swimming. The sun shines for around 7.6 hours a day. It rains often – on about 18 days, adding up to 102 mm. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, December is a so-so month for a holiday in Hagåtña.
Hagåtña in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Hagåtña
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Hot 24° and more
- muggy month (15+ muggy days)
HotOctober: nights around 25°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).
The coolest nights are in February (24°), the warmest in June (26°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) all year, on about 365 days a year.
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 | 48 | 31° | 25° | 28.2° | 7.3 h | 15 | 78 |
| FebruaryFeb | 55 | 31° | 24° | 27.8° | 7.5 h | 12 | 57 |
| MarchMar | 56 | 31° | 25° | 27.9° | 8.4 h | 12 | 49 |
| AprilApr | 50 | 32° | 26° | 28.3° | 8.5 h | 13 | 78 |
| MayMay | 40 | 32° | 26° | 28.9° | 8.6 h | 16 | 92 |
| JuneJun | 35 | 32° | 26° | 29.4° | 8.1 h | 22 | 156 |
| JulyJul | 33 | 32° | 26° | 29.5° | 6.5 h | 29 | 277 |
| AugustAug | 32 | 31° | 25° | 29.5° | 5.4 h | 29 | 355 |
| SeptemberSep | 31 | 31° | 25° | 29.6° | 5.3 h | 28 | 327 |
| OctoberOct | 32 | 31° | 25° | 29.5° | 5.7 h | 28 | 309 |
| NovemberNov | 36 | 32° | 26° | 29.2° | 7.1 h | 23 | 175 |
| DecemberDec | 40 | 31° | 25° | 28.7° | 7.6 h | 18 | 102 |
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
13.48° N, 144.75° E · 3 m · Pacific/Guam
Sea temperature
Sea temperature in Hagåtña
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 29.2 – 29.9 °C
Swimming season: all year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Hagåtña ranges from 27.8 °C in February to 29.6 °C in September. At 20 °C and more, the sea is warm enough for swimming all year round.
The sea temperature varies from year to year: in September, eight out of ten years were between 29.0 and 30.1 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 28.2° | 27.8° | 28.7° | warm |
| FebruaryFeb | 27.8° | 27.4° | 28.3° | warm |
| MarchMar | 27.9° | 27.3° | 28.3° | warm |
| AprilApr | 28.3° | 27.9° | 28.7° | warm |
| MayMay | 28.9° | 28.5° | 29.4° | warm |
| JuneJun | 29.4° | 29.0° | 29.8° | very warm |
| JulyJul | 29.5° | 28.9° | 29.9° | very warm |
| AugustAug | 29.5° | 28.9° | 30.0° | very warm |
| SeptemberSep | 29.6° | 29.0° | 30.1° | very warm |
| OctoberOct | 29.5° | 29.2° | 29.9° | very warm |
| NovemberNov | 29.2° | 28.8° | 29.6° | very warm |
| DecemberDec | 28.7° | 28.1° | 29.2° | warm |
Sunshine
Sunshine hours in Hagåtña
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 5.7 of 11.9 hours of daylight in Hagåtña, 48 % 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
Rain in Hagåtña: 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, Hagåtña has about 28 rainy days with 309 mm of rain in total.
UV index
UV index in Hagåtña
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 11 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.
The sun is strongest in August (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 & clouds
Wind and clouds in Hagåtña
How breezy and how cloudy Hagåtña 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 Hagåtña typically peaks at 26 km/h during the day: Beaufort 4, moderate breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 76 % of the sky over Hagåtña: mostly cloudy, with about 5.7 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 & humidity
Heat and humidity in Hagåtña
How often the day gets hot in Hagåtña (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, it is hot in Hagåtña every day, with an average daytime high of 31 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.
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 Hagåtña
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Hagåtña 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.
Hagåtña has its best school-holiday weather during the Easter holidays (score 52) and its weakest during the summer holidays (score 32).
- 52
Easter holidays
Mar – Apr
FairBest holidays
- 32 °C by day
- Sea 28 °C
- 8.5 h of sun a day
- 12 rainy days a month
- 39
May half-term
May – Jun
Poor
- 32 °C by day
- Sea 29 °C
- 8.5 h of sun a day
- 17 rainy days a month
- 32
Summer holidays
Jul – Aug
Poor
- 31 °C by day
- Sea 30 °C
- 5.8 h of sun a day
- 29 rainy days a month
Keep in mind: Frequent rain, Storm season
- 32
October half-term
Oct
Poor
- 31 °C by day
- Sea 30 °C
- 5.7 h of sun a day
- 28 rainy days a month
Keep in mind: Frequent rain, Storm season
- 44
Christmas holidays
Dec – Jan
Fair
- 31 °C by day
- Sea 28 °C
- 7.5 h of sun a day
- 17 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 15 h
- Distance
- 12,050 km
- Time zone
- UTC+10
- Jet lag
- About 9 days (9 h east)
Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning 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.
Good to know: Guam
- Currency
- US Dollar (USD)
- Languages
- English, Chamorro
- Sockets
- Type A, B · 110 V
- Traffic
- Drives on the right
- Dialling code
- +1 671
- Emergency number
- 911
UK plugs need a travel adapter
Only 110 V: chargers marked 100–240 V work, other devices need a voltage converter.
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Storm season
Hagåtña lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
- January
- February
- March
- April
- May
- June: Season
- July: Season
- August: Peak
- September: Peak
- October: Peak
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.
Compare & alternatives
Compare with another place
Hagåtña compared
Put Hagåtña side by side with another destination.
Hagåtña vs Saipan
In October the holiday weather in Hagåtña and Saipan is about equally good (score 32 vs 36). During the day it is about as warm in Saipan as in Hagåtña. The sea in Saipan is 1 °C cooler.
| in October | Hagåtña | Saipan |
|---|---|---|
| Holiday weather score | 32 | 36 |
| Daytime high | 31° | 31° |
| Sea | 30° | 29° |
| Sunshine | 6 h | 6 h |
| Rainy days | 28 | 26 |
| Best time | Feb – Mar | Feb – Mar |
Through the year
Places nearby
Near Hagåtña
Other destinations close by.
Places with a similar climate
Places with a climate like Hagåtña
Destinations whose weather through the year is closest to Hagåtña's – good alternatives.
Frequently asked questions about Hagåtña
When is the best time to visit Hagåtña?
The best time to visit Hagåtña is from February to March. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Hagåtña?
The sea temperature in Hagåtña ranges from 27.8 °C in February to 29.6 °C in September. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Hagåtña in October?
Yes. In October the sea averages 29.5 °C – almost as warm as a bath.
What is the warmest month in Hagåtña?
May is the warmest month, with average highs of 32 °C and nights around 26 °C. January is the coolest month at 31 °C.
When does it rain most in Hagåtña?
The rainy season is from July to October; the wettest month is August with 355 mm. The driest month is March with 49 mm.
How many hours of sunshine does Hagåtña get?
Hagåtña gets around 2,620 hours of sunshine a year. The sunniest month is May with 8.6 hours a day; in September there are 5.3 hours a day.
What time zone is Hagåtña in?
Hagåtña is on UTC+10 all year.
How long is the flight from London to Hagåtña?
A nonstop flight from London to Hagåtña takes about 15 h, for a straight-line distance of about 12,050 km. Most routes need a change of planes, which adds time.
When is typhoon season in Hagåtña?
Hagåtña lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Which school holidays are best for Hagåtña?
Hagåtña has its best school-holiday weather during the Easter holidays (score 52) and its weakest during the summer holidays (score 32). Holiday ratings (0–100): Easter holidays 52, May half-term 39, summer holidays 32, October half-term 32, Christmas holidays 44.