Tamuning-Tumon-Harmon Village weather in December
In December, Tamuning-Tumon-Harmon Village sees average daytime highs of 28°C and overnight lows near 26°C, with 93 mm of rain across 16.8 wet days and about 11.2 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 49% of the time in December, and the air most often feels miserable.
Daylight stretches from about 11 h 18 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Tamuning-Tumon-Harmon Village's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Tamuning-Tumon-Harmon Village's year-round climate.
- Daytime high
- 28°
- 8th warmest
- Overnight low
- 26°
- 9th coldest
- Rainfall
- 93 mm
- 16.8 wet days
- Daylight
- 11 h 12 min
- 6:41 AM – 5:53 PM
- Cloud cover
- 48%
- 3rd clearest
- Wind
- 30 km/h
- 2nd windiest
- Solar energy
- 4.86 kWh/m²
- Travel score
- 5.6
- out of 10
Tamuning-Tumon-Harmon Village is village of Guam, a municipality in the United States territory.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Day-to-day highs hold fairly steady near 28°C through the month.
A typical December day in Tamuning-Tumon-Harmon Village reaches about 28°C in the afternoon and slips back to 26°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, December runs on par with November and on par with January.
| 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) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 |
| Avg low (°C) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 27 |
| 2 | 28 | 27 |
| 3 | 28 | 27 |
| 4 | 28 | 27 |
| 5 | 28 | 27 |
| 6 | 28 | 27 |
| 7 | 28 | 27 |
| 8 | 28 | 27 |
| 9 | 28 | 27 |
| 10 | 28 | 27 |
| 11 | 28 | 27 |
| 12 | 28 | 27 |
| 13 | 28 | 27 |
| 14 | 28 | 27 |
| 15 | 28 | 27 |
| 16 | 28 | 27 |
| 17 | 28 | 26 |
| 18 | 28 | 26 |
| 19 | 28 | 26 |
| 20 | 28 | 26 |
| 21 | 28 | 26 |
| 22 | 28 | 26 |
| 23 | 28 | 26 |
| 24 | 28 | 26 |
| 25 | 28 | 26 |
| 26 | 28 | 26 |
| 27 | 28 | 26 |
| 28 | 27 | 26 |
| 29 | 27 | 26 |
| 30 | 27 | 26 |
| 31 | 27 | 26 |
How December really feels in Tamuning-Tumon-Harmon Village
Once humidity and wind are folded in, December averages 7 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Tamuning-Tumon-Harmon Village weather by month
How December compares with the rest of the year at a glance. December is the 8th-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 | 27° / 26° | 71 | 14.7 | 11.3 | 6.0 |
| Feb | 27° / 26° | 51 | 11.3 | 11.6 | 6.3 |
| Mar | 27° / 26° | 45 | 10.2 | 11.9 | 6.7 |
| Apr | 27° / 26° | 67 | 11.1 | 12.3 | 6.5 |
| May | 28° / 27° | 81 | 15 | 12.6 | 5.6 |
| Jun | 28° / 27° | 140 | 20.4 | 12.8 | 4.4 |
| Jul | 28° / 26° | 273 | 28.4 | 12.7 | 3.3 |
| Aug | 28° / 26° | 350 | 29.2 | 12.4 | 3.2 |
| Sep | 28° / 26° | 314 | 27.2 | 12.1 | 3.3 |
| Oct | 28° / 26° | 279 | 27.5 | 11.7 | 3.6 |
| Nov | 28° / 27° | 175 | 21.5 | 11.4 | 4.5 |
| Dec | 28° / 26° | 93 | 16.8 | 11.2 | 5.6 |
Cloud cover in December
The sky is clear or mostly clear about 49% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 32%.
| 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 (%) | 65 | 66 | 66 | 67 | 67 | 68 | 68 | 68 | 69 | 69 | 69 | 69 | 70 | 69 | 69 | 69 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 67 | 67 |
| Cloudier (%) | 35 | 34 | 34 | 33 | 33 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 30 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 65 | 35 |
| 2 | 66 | 34 |
| 3 | 66 | 34 |
| 4 | 67 | 33 |
| 5 | 67 | 33 |
| 6 | 68 | 32 |
| 7 | 68 | 32 |
| 8 | 68 | 32 |
| 9 | 69 | 31 |
| 10 | 69 | 31 |
| 11 | 69 | 31 |
| 12 | 69 | 31 |
| 13 | 70 | 30 |
| 14 | 69 | 31 |
| 15 | 69 | 31 |
| 16 | 69 | 31 |
| 17 | 68 | 32 |
| 18 | 68 | 32 |
| 19 | 68 | 32 |
| 20 | 68 | 32 |
| 21 | 68 | 32 |
| 22 | 68 | 32 |
| 23 | 68 | 32 |
| 24 | 68 | 32 |
| 25 | 68 | 32 |
| 26 | 68 | 32 |
| 27 | 68 | 32 |
| 28 | 68 | 32 |
| 29 | 68 | 32 |
| 30 | 67 | 33 |
| 31 | 67 | 33 |
Chance of precipitation in December
Tamuning-Tumon-Harmon Village gets around 93 mm of rain over 16.8 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 55% and peaks near 64% on the wettest days. The odds ease toward the end of the month.
| 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 (%) | 64 | 62 | 61 | 60 | 59 | 58 | 57 | 57 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 54 | 54 | 53 | 53 | 52 | 52 | 51 | 50 | 49 | 49 | 48 | 48 | 48 |
| Rain chance (%) | |
|---|---|
| 1 | 64 |
| 2 | 62 |
| 3 | 61 |
| 4 | 60 |
| 5 | 59 |
| 6 | 58 |
| 7 | 57 |
| 8 | 57 |
| 9 | 56 |
| 10 | 55 |
| 11 | 55 |
| 12 | 55 |
| 13 | 55 |
| 14 | 55 |
| 15 | 55 |
| 16 | 55 |
| 17 | 55 |
| 18 | 55 |
| 19 | 54 |
| 20 | 54 |
| 21 | 53 |
| 22 | 53 |
| 23 | 52 |
| 24 | 52 |
| 25 | 51 |
| 26 | 50 |
| 27 | 49 |
| 28 | 49 |
| 29 | 48 |
| 30 | 48 |
| 31 | 48 |
Humidity in December
Most of December feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the miserable band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muggy (%) | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 |
| Oppressive (%) | 28 | 30 | 31 | 32 | 34 | 35 | 36 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 46 | 47 | 48 | 49 | 50 | 52 | 54 | 56 | 57 | 58 | 60 | 62 | 64 | 66 | 68 |
| Miserable (%) | 71 | 69 | 68 | 67 | 65 | 64 | 62 | 60 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 52 | 51 | 49 | 48 | 47 | 45 | 43 | 41 | 40 | 38 | 36 | 34 | 32 | 30 | 28 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 1 | 28 | 71 |
| 2 | 1 | 30 | 69 |
| 3 | 1 | 31 | 68 |
| 4 | 1 | 32 | 67 |
| 5 | 1 | 34 | 65 |
| 6 | 1 | 35 | 64 |
| 7 | 2 | 36 | 62 |
| 8 | 2 | 38 | 60 |
| 9 | 2 | 39 | 59 |
| 10 | 2 | 40 | 58 |
| 11 | 2 | 41 | 57 |
| 12 | 2 | 42 | 56 |
| 13 | 2 | 43 | 55 |
| 14 | 2 | 44 | 54 |
| 15 | 2 | 45 | 53 |
| 16 | 2 | 46 | 52 |
| 17 | 2 | 46 | 52 |
| 18 | 2 | 47 | 51 |
| 19 | 3 | 48 | 49 |
| 20 | 3 | 49 | 48 |
| 21 | 3 | 50 | 47 |
| 22 | 3 | 52 | 45 |
| 23 | 3 | 54 | 43 |
| 24 | 3 | 56 | 41 |
| 25 | 3 | 57 | 40 |
| 26 | 4 | 58 | 38 |
| 27 | 4 | 60 | 36 |
| 28 | 4 | 62 | 34 |
| 29 | 4 | 64 | 32 |
| 30 | 4 | 66 | 30 |
| 31 | 4 | 68 | 28 |
Wind in December
Winds average 30 km/h in December.
Across December, daily wind ranges from about 29 km/h on the calmest days to 30 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) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
| Feels | breezy | breezy | breezy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy | windy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 29 | breezy |
| 2 | 29 | breezy |
| 3 | 29 | breezy |
| 4 | 29 | windy |
| 5 | 29 | windy |
| 6 | 29 | windy |
| 7 | 29 | windy |
| 8 | 29 | windy |
| 9 | 29 | windy |
| 10 | 30 | windy |
| 11 | 30 | windy |
| 12 | 30 | windy |
| 13 | 30 | windy |
| 14 | 30 | windy |
| 15 | 30 | windy |
| 16 | 30 | windy |
| 17 | 30 | windy |
| 18 | 30 | windy |
| 19 | 30 | windy |
| 20 | 30 | windy |
| 21 | 30 | windy |
| 22 | 30 | windy |
| 23 | 30 | windy |
| 24 | 30 | windy |
| 25 | 30 | windy |
| 26 | 30 | windy |
| 27 | 30 | windy |
| 28 | 30 | windy |
| 29 | 29 | windy |
| 30 | 29 | windy |
| 31 | 29 | windy |
Sunrise & sunset in December
Daylight runs from about 11 h 18 min at the start of December to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 6:33 AM to 6:48 AM, and sunset from 5:48 PM to 6:00 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) | 11.3 | 11.3 | 11.3 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 |
| Sunrise (AM) | 6:33 | 6:33 | 6:34 | 6:34 | 6:35 | 6:35 | 6:36 | 6:37 | 6:37 | 6:38 | 6:38 | 6:39 | 6:39 | 6:40 | 6:40 | 6:41 | 6:41 | 6:42 | 6:42 | 6:43 | 6:43 | 6:44 | 6:44 | 6:45 | 6:45 | 6:46 | 6:46 | 6:46 | 6:47 | 6:47 | 6:48 |
| Sunset (PM) | 5:48 | 5:49 | 5:49 | 5:49 | 5:49 | 5:50 | 5:50 | 5:50 | 5:51 | 5:51 | 5:51 | 5:52 | 5:52 | 5:52 | 5:53 | 5:53 | 5:54 | 5:54 | 5:55 | 5:55 | 5:56 | 5:56 | 5:56 | 5:57 | 5:57 | 5:58 | 5:58 | 5:59 | 5:59 | 6:00 | 6:00 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.3 | 6:33 | 5:48 |
| 2 | 11.3 | 6:33 | 5:49 |
| 3 | 11.3 | 6:34 | 5:49 |
| 4 | 11.2 | 6:34 | 5:49 |
| 5 | 11.2 | 6:35 | 5:49 |
| 6 | 11.2 | 6:35 | 5:50 |
| 7 | 11.2 | 6:36 | 5:50 |
| 8 | 11.2 | 6:37 | 5:50 |
| 9 | 11.2 | 6:37 | 5:51 |
| 10 | 11.2 | 6:38 | 5:51 |
| 11 | 11.2 | 6:38 | 5:51 |
| 12 | 11.2 | 6:39 | 5:52 |
| 13 | 11.2 | 6:39 | 5:52 |
| 14 | 11.2 | 6:40 | 5:52 |
| 15 | 11.2 | 6:40 | 5:53 |
| 16 | 11.2 | 6:41 | 5:53 |
| 17 | 11.2 | 6:41 | 5:54 |
| 18 | 11.2 | 6:42 | 5:54 |
| 19 | 11.2 | 6:42 | 5:55 |
| 20 | 11.2 | 6:43 | 5:55 |
| 21 | 11.2 | 6:43 | 5:56 |
| 22 | 11.2 | 6:44 | 5:56 |
| 23 | 11.2 | 6:44 | 5:56 |
| 24 | 11.2 | 6:45 | 5:57 |
| 25 | 11.2 | 6:45 | 5:57 |
| 26 | 11.2 | 6:46 | 5:58 |
| 27 | 11.2 | 6:46 | 5:58 |
| 28 | 11.2 | 6:46 | 5:59 |
| 29 | 11.2 | 6:47 | 5:59 |
| 30 | 11.2 | 6:47 | 6:00 |
| 31 | 11.2 | 6:48 | 6:00 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 4.86 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 4.86 kWh/m² to a high of 6.68 kWh/m² in April across the year — December's 4.86 kWh/m² sits near the bottom.
| 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) | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.9 | Bright |
| 2 | 4.9 | Bright |
| 3 | 4.9 | Bright |
| 4 | 4.9 | Bright |
| 5 | 4.9 | Bright |
| 6 | 4.9 | Bright |
| 7 | 4.9 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.9 | Bright |
| 10 | 4.9 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 4.9 | Bright |
| 18 | 4.9 | Bright |
| 19 | 4.9 | Bright |
| 20 | 4.9 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 5.0 | Bright |
| 24 | 5.0 | Bright |
| 25 | 5.0 | Bright |
| 26 | 5.0 | Bright |
| 27 | 5.1 | Bright |
| 28 | 5.1 | Bright |
| 29 | 5.1 | Bright |
| 30 | 5.1 | Bright |
| 31 | 5.1 | Bright |
Hazard calendar for Tamuning-Tumon-Harmon Village
In December, Tamuning-Tumon-Harmon Village sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Tamuning-Tumon-Harmon Village sits in the Pacific typhoon belt; the season peaks July–October.
Tamuning-Tumon-Harmon Village's monsoon runs July–November, when most of the year's rain falls.
Is December a good time to visit Tamuning-Tumon-Harmon Village?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Tamuning-Tumon-Harmon Village for sightseeing.
What to pack for Tamuning-Tumon-Harmon Village in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Tamuning-Tumon-Harmon Village sees daytime highs around 28°C and nights near 26°C. Pack light clothes, rain gear and a windbreaker. Worth having: sun protection. About 17 days see rain.
Sea temperature near Tamuning-Tumon-Harmon Village in December
The nearest coast averages about 28°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in July at about 29°C and coldest in February near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Warm |
| Mar | 28 | Warm |
| Apr | 28 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Tamuning-Tumon-Harmon Village in December
Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tamuning-Tumon-Harmon Village peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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) | 10 | 11 | 13 | 13 | 13 | 12 | 13 | 14 | 13 | 12 | 10 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Extreme |
| Dec | 9 | Very high |
Where is Tamuning-Tumon-Harmon Village?
Tamuning-Tumon-Harmon Village sits at 13.5°N, 144.8°E, 13 m above sea level, in Guam. The nearest listed city is Tumon, 0.0 km away.
Topography around Tamuning-Tumon-Harmon Village
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tamuning-Tumon-Harmon Village.
Within 3 km, the terrain around Tamuning-Tumon-Harmon Village has only modest variations in elevation — a maximum elevation change of 109 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 308 m; within 80 km, significant variations in elevation — a maximum elevation change of 387 m.
The land around Tamuning-Tumon-Harmon Village is covered by water (31%), trees (24%) and artificial surfaces (23%) within 3 km, water (59%) and trees (28%) within 16 km, and water (94%) within 80 km.
Guam travel facts
- Power plugs
- Type A / B
- 110 V · 60 Hz
- GDP per capita
- $41,833
- 2022
- Safe drinking water
- 94%
- of population, 2024
- Homicide rate
- 4.3
- per 100k, 2019
- Income group
- High
- World Bank
- 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 Tamuning-Tumon-Harmon Village (13.4877°, 144.7814°, elevation 13 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).