Waisai weather in May

In May, Waisai sees average daytime highs of 28°C and overnight lows near 26°C, with 274 mm of rain across 27.1 wet days and about 12 hours of daylight. It is the 1st-warmest and 3rd-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 9% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 hours at the start of May to 12 hours by month's end. Set against the rest of the year, May is Waisai's 3rd-clearest and 10th-windiest month. For the whole year in context, see Waisai's year-round climate.

Daytime high: 28°; 1st warmest
Overnight low: 26°; 12th coldest
Rainfall: 274 mm; 27.1 wet days
Daylight: 12 hours; 6:15 AM – 6:14 PM
Cloud cover: 75%; 3rd clearest
Wind: 7 km/h; 10th windiest
Solar energy: 5.26 kWh/m²
Travel score: 3.5; out of 10

← April Waisai year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical May day in Waisai reaches about 28°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, May runs on par with April and on par with June.

	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	28	28	28	28
Avg low (°C)	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	25	25	25	25

	Avg high (°C)	Avg low (°C)
1	28	26
2	28	26
3	28	26
4	28	26
5	28	26
6	28	26
7	28	26
8	28	26
9	28	26
10	28	26
11	28	26
12	28	26
13	28	26
14	28	26
15	28	26
16	28	26
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	28	25
29	28	25
30	28	25
31	28	25

How May really feels in Waisai

Once humidity and wind are folded in, May averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Waisai weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 25°	246	26.6	12	3.6
Feb	28° / 25°	193	23.3	12	3.7
Mar	28° / 25°	258	26.4	12	3.5
Apr	28° / 25°	286	27.6	12	3.3
May	28° / 26°	274	27.1	12	3.5
Jun	28° / 25°	279	25	12	4.0
Jul	27° / 25°	231	23.4	12	4.3
Aug	27° / 25°	169	19.2	12	4.9
Sep	28° / 25°	185	21.2	12	4.5
Oct	28° / 25°	200	22.8	12	4.1
Nov	28° / 25°	220	26.1	12	3.5
Dec	28° / 25°	266	28.6	12	3.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 76%.

	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 (%)	16	16	16	16	19	19	20	20	21	22	23	24	25	25	26	26	28	29	29	29	30	29	29	29	26	26	26	26	24	24	23
Cloudier (%)	84	84	84	84	81	81	80	80	79	78	77	76	75	75	74	74	72	71	71	71	70	71	71	71	74	74	74	74	76	76	77

	Clearer (%)	Cloudier (%)
1	16	84
2	16	84
3	16	84
4	16	84
5	19	81
6	19	81
7	20	80
8	20	80
9	21	79
10	22	78
11	23	77
12	24	76
13	25	75
14	25	75
15	26	74
16	26	74
17	28	72
18	29	71
19	29	71
20	29	71
21	30	70
22	29	71
23	29	71
24	29	71
25	26	74
26	26	74
27	26	74
28	26	74
29	24	76
30	24	76
31	23	77

Chance of precipitation in May

Any precipitation

Waisai gets around 274 mm of rain over 27.1 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 88% and peaks near 92% 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 (%)	92	92	92	91	91	91	90	89	89	88	88	87	87	87	86	86	86	85	85	85	85	85	86	86	86	86	86	87	87	87	87

	Rain chance (%)
1	92
2	92
3	92
4	91
5	91
6	91
7	90
8	89
9	89
10	88
11	88
12	87
13	87
14	87
15	86
16	86
17	86
18	85
19	85
20	85
21	85
22	85
23	86
24	86
25	86
26	86
27	86
28	87
29	87
30	87
31	87

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 55% 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
Oppressive (%)	35	35	35	35	36	36	37	38	39	39	40	41	42	43	44	45	46	46	47	48	49	50	51	52	52	53	54	55	56	57	57
Miserable (%)	65	65	65	65	64	64	63	62	61	61	60	59	58	57	56	55	54	54	53	52	51	50	49	48	48	47	46	45	44	43	43

	Oppressive (%)	Miserable (%)
1	35	65
2	35	65
3	35	65
4	35	65
5	36	64
6	36	64
7	37	63
8	38	62
9	39	61
10	39	61
11	40	60
12	41	59
13	42	58
14	43	57
15	44	56
16	45	55
17	46	54
18	46	54
19	47	53
20	48	52
21	49	51
22	50	50
23	51	49
24	52	48
25	52	48
26	53	47
27	54	46
28	55	45
29	56	44
30	57	43
31	57	43

Wind in May

Winds average 7 km/h in May.

Across May, 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 May

DaylightNight

Daylight runs from about 12 hours at the start of May to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over May. Sunrise moves from 6:15 AM to 6:16 AM, and sunset from 6:15 PM to 6:15 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)	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:15	6:16	6:16
Sunset (PM)	6:15	6:15	6:15	6:15	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:14	6:15	6:15	6:15	6:15	6:15

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.0	6:15	6:15
2	12.0	6:15	6:15
3	12.0	6:15	6:15
4	12.0	6:15	6:15
5	12.0	6:15	6:14
6	12.0	6:15	6:14
7	12.0	6:15	6:14
8	12.0	6:15	6:14
9	12.0	6:15	6:14
10	12.0	6:15	6:14
11	12.0	6:15	6:14
12	12.0	6:15	6:14
13	12.0	6:15	6:14
14	12.0	6:15	6:14
15	12.0	6:15	6:14
16	12.0	6:15	6:14
17	12.0	6:15	6:14
18	12.0	6:15	6:14
19	12.0	6:15	6:14
20	12.0	6:15	6:14
21	12.0	6:15	6:14
22	12.0	6:15	6:14
23	12.0	6:15	6:14
24	12.0	6:15	6:14
25	12.0	6:15	6:14
26	12.0	6:15	6:14
27	12.0	6:15	6:15
28	12.0	6:15	6:15
29	12.0	6:15	6:15
30	12.0	6:16	6:15
31	12.0	6:16	6:15

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.26 kWh/m².

For context, solar energy here swings from a low near 4.82 kWh/m² to a high of 5.79 kWh/m² in October across the year — May's 5.26 kWh/m² falls in the middle.

	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)	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.2	5.2	5.2	5.2	5.2	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	5.2	Bright
2	5.2	Bright
3	5.2	Bright
4	5.2	Bright
5	5.2	Bright
6	5.2	Bright
7	5.2	Bright
8	5.2	Bright
9	5.2	Bright
10	5.2	Bright
11	5.2	Bright
12	5.2	Bright
13	5.3	Bright
14	5.3	Bright
15	5.3	Bright
16	5.3	Bright
17	5.3	Bright
18	5.3	Bright
19	5.3	Bright
20	5.3	Bright
21	5.3	Bright
22	5.3	Bright
23	5.2	Bright
24	5.2	Bright
25	5.2	Bright
26	5.2	Bright
27	5.2	Bright
28	5.1	Bright
29	5.1	Bright
30	5.1	Bright
31	5.1	Bright

Planning a trip in May

Is May a good time to visit Waisai?

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

3.5

Sightseeing

8th-best month of the year

4.1

Beach & pool

8th-best month of the year

May is a weaker month for outdoor sightseeing in Waisai.

What to pack for Waisai in May

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

In May, Waisai sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Waisai in May

The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in May at about 29°C and coldest in February near 29°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)	29	29	29	29	29	29	29	29	29	29	29	29
Comfort	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical

	Sea temperature (°C)	Comfort
Jan	29	Tropical
Feb	29	Tropical
Mar	29	Tropical
Apr	29	Tropical
May	29	Tropical
Jun	29	Tropical
Jul	29	Tropical
Aug	29	Tropical
Sep	29	Tropical
Oct	29	Tropical
Nov	29	Tropical
Dec	29	Tropical

UV index in Waisai in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Waisai peaks around March 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 12 (extreme).

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)	14	15	16	15	12	12	12	13	14	15	13	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	15	Extreme
Mar	16	Extreme
Apr	15	Extreme
May	12	Extreme
Jun	12	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	14	Extreme
Oct	15	Extreme
Nov	13	Extreme
Dec	12	Extreme

Location & terrain

Where is Waisai?

Waisai sits at 0.2°S, 130.5°E, 185 m above sea level, in Indonesia. The nearest listed city is Sorong, 110 km away.

Topography around Waisai

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

Within 3 km, the terrain around Waisai has significant variations in elevation — a maximum elevation change of 411 m around an average of 151 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 733 m; within 80 km, large variations in elevation — a maximum elevation change of 1,155 m.

The land around Waisai is covered by trees (75%) and water (23%) within 3 km, trees (66%) and water (32%) within 16 km, and water (81%) within 80 km.

3 km

411 m

trees 75%

16 km

733 m

trees 66%

80 km

1,155 m

water 81%

treeswatermangroves

← April Waisai year-round climate June →Best places to visit in May

May weather nearby: Sorong 110 km · Teminabuan 214 km · Sofifi 345 km · Tobelo 353 km · Daruba 354 km · Fakfak 359 km · Ternate 366 km · Kawasi 376 km

Indonesia travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 29% of US; price level, 2025
GDP per capita: $5,060; 2025
Happiness: 5.6 / 10; World Happiness, 2025
Safe drinking water: 30%; of population, 2024
Homicide rate: 0.3; per 100k, 2022
Road deaths: 11.3; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 471
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 Waisai (-0.2379°, 130.5072°, elevation 185 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. 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).

	Avg high (°C)	Avg low (°C)
1	28	26
2	28	26
3	28	26
4	28	26
5	28	26
6	28	26
7	28	26
8	28	26
9	28	26
10	28	26
11	28	26
12	28	26
13	28	26
14	28	26
15	28	26
16	28	26
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	28	25
29	28	25
30	28	25
31	28	25

	Clearer (%)	Cloudier (%)
1	16	84
2	16	84
3	16	84
4	16	84
5	19	81
6	19	81
7	20	80
8	20	80
9	21	79
10	22	78
11	23	77
12	24	76
13	25	75
14	25	75
15	26	74
16	26	74
17	28	72
18	29	71
19	29	71
20	29	71
21	30	70
22	29	71
23	29	71
24	29	71
25	26	74
26	26	74
27	26	74
28	26	74
29	24	76
30	24	76
31	23	77

	Rain chance (%)
1	92
2	92
3	92
4	91
5	91
6	91
7	90
8	89
9	89
10	88
11	88
12	87
13	87
14	87
15	86
16	86
17	86
18	85
19	85
20	85
21	85
22	85
23	86
24	86
25	86
26	86
27	86
28	87
29	87
30	87
31	87

	Oppressive (%)	Miserable (%)
1	35	65
2	35	65
3	35	65
4	35	65
5	36	64
6	36	64
7	37	63
8	38	62
9	39	61
10	39	61
11	40	60
12	41	59
13	42	58
14	43	57
15	44	56
16	45	55
17	46	54
18	46	54
19	47	53
20	48	52
21	49	51
22	50	50
23	51	49
24	52	48
25	52	48
26	53	47
27	54	46
28	55	45
29	56	44
30	57	43
31	57	43

	Avg high (°C)	Avg low (°C)
1	28	26
2	28	26
3	28	26
4	28	26
5	28	26
6	28	26
7	28	26
8	28	26
9	28	26
10	28	26
11	28	26
12	28	26
13	28	26
14	28	26
15	28	26
16	28	26
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	28	25
29	28	25
30	28	25
31	28	25

	Clearer (%)	Cloudier (%)
1	16	84
2	16	84
3	16	84
4	16	84
5	19	81
6	19	81
7	20	80
8	20	80
9	21	79
10	22	78
11	23	77
12	24	76
13	25	75
14	25	75
15	26	74
16	26	74
17	28	72
18	29	71
19	29	71
20	29	71
21	30	70
22	29	71
23	29	71
24	29	71
25	26	74
26	26	74
27	26	74
28	26	74
29	24	76
30	24	76
31	23	77

	Rain chance (%)
1	92
2	92
3	92
4	91
5	91
6	91
7	90
8	89
9	89
10	88
11	88
12	87
13	87
14	87
15	86
16	86
17	86
18	85
19	85
20	85
21	85
22	85
23	86
24	86
25	86
26	86
27	86
28	87
29	87
30	87
31	87

	Oppressive (%)	Miserable (%)
1	35	65
2	35	65
3	35	65
4	35	65
5	36	64
6	36	64
7	37	63
8	38	62
9	39	61
10	39	61
11	40	60
12	41	59
13	42	58
14	43	57
15	44	56
16	45	55
17	46	54
18	46	54
19	47	53
20	48	52
21	49	51
22	50	50
23	51	49
24	52	48
25	52	48
26	53	47
27	54	46
28	55	45
29	56	44
30	57	43
31	57	43

	Avg high (°C)	Avg low (°C)
1	28	26
2	28	26
3	28	26
4	28	26
5	28	26
6	28	26
7	28	26
8	28	26
9	28	26
10	28	26
11	28	26
12	28	26
13	28	26
14	28	26
15	28	26
16	28	26
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	28	25
29	28	25
30	28	25
31	28	25

	Clearer (%)	Cloudier (%)
1	16	84
2	16	84
3	16	84
4	16	84
5	19	81
6	19	81
7	20	80
8	20	80
9	21	79
10	22	78
11	23	77
12	24	76
13	25	75
14	25	75
15	26	74
16	26	74
17	28	72
18	29	71
19	29	71
20	29	71
21	30	70
22	29	71
23	29	71
24	29	71
25	26	74
26	26	74
27	26	74
28	26	74
29	24	76
30	24	76
31	23	77

	Rain chance (%)
1	92
2	92
3	92
4	91
5	91
6	91
7	90
8	89
9	89
10	88
11	88
12	87
13	87
14	87
15	86
16	86
17	86
18	85
19	85
20	85
21	85
22	85
23	86
24	86
25	86
26	86
27	86
28	87
29	87
30	87
31	87

	Oppressive (%)	Miserable (%)
1	35	65
2	35	65
3	35	65
4	35	65
5	36	64
6	36	64
7	37	63
8	38	62
9	39	61
10	39	61
11	40	60
12	41	59
13	42	58
14	43	57
15	44	56
16	45	55
17	46	54
18	46	54
19	47	53
20	48	52
21	49	51
22	50	50
23	51	49
24	52	48
25	52	48
26	53	47
27	54	46
28	55	45
29	56	44
30	57	43
31	57	43