Caia weather in May

In May, Caia sees average daytime highs of 29°C and overnight lows near 19°C, with 10 mm of rain across 2.4 wet days and about 11.2 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 28°C by the end. The sky is clear or mostly clear about 61% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 24 min at the start of May to 11 hours by month's end. Set against the rest of the year, May is Caia's 4th-clearest and 11th-windiest month. For the whole year in context, see Caia's year-round climate.

Daytime high
29°
10th warmest
Overnight low
19°
4th coldest
Rainfall
10 mm
2.4 wet days
Daylight
11 h 12 min
6:00 AM – 5:10 PM
Cloud cover
34%
4th clearest
Wind
8 km/h
11th windiest
Solar energy
4.46 kWh/m²
Travel score
6.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 28°C by the end.

A typical May day in Caia reaches about 29°C in the afternoon and slips back to 19°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13020
23020
33020
43020
53020
63020
73020
83020
93020
103019
113019
122919
132919
142919
152919
162919
172919
182919
192919
202919
212919
222919
232919
242919
252918
262918
272918
282918
292818
302818
312818

How May really feels in Caia

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Caia weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°18418.612.93.1
Feb32° / 24°11514.812.63.3
Mar32° / 23°8913.912.13.9
Apr31° / 22°306.611.65.2
May29° / 19°102.411.26.7
Jun27° / 17°61.8118.0
Jul27° / 17°92.7118.0
Aug29° / 18°41.111.46.8
Sep32° / 20°71.611.94.9
Oct34° / 22°132.712.43.7
Nov35° / 24°496.812.82.8
Dec33° / 24°13215.3132.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 61% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 17%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38416
48416
58416
68515
78515
88515
98515
108515
118416
128317
138317
148317
158218
168218
178218
188218
198317
208218
218218
228317
238317
248317
258317
268317
278317
288317
298416
308416
318416

Chance of precipitation in May

Any precipitation

Caia gets around 10 mm of rain over 2.4 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 8% and peaks near 11% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
111
210
310
410
59
69
79
88
98
108
118
128
138
148
158
168
178
188
198
208
218
228
238
248
258
267
277
287
297
307
317

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 37% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
105345110
21535509
31636498
41638487
51739476
61840465
71841454
81942444
911043433
1011044423
1111145413
1211245402
1311246392
1411247372
1511348361
1611349351
1711351341
1811451331
1911452321
2011552311
2111553301
2211653291
2311754280
2411854270
2511954260
2612154240
2712254230
2822354210
2922454200
3022654180
3122754170

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 24 min at the start of May to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over May. Sunrise moves from 5:55 AM to 6:05 AM, and sunset from 5:17 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.45:555:17
211.35:555:16
311.35:565:16
411.35:565:15
511.35:565:15
611.35:565:14
711.35:575:14
811.35:575:13
911.35:575:13
1011.25:585:12
1111.25:585:12
1211.25:585:11
1311.25:595:11
1411.25:595:11
1511.26:005:10
1611.26:005:10
1711.26:005:10
1811.16:015:09
1911.16:015:09
2011.16:015:09
2111.16:025:08
2211.16:025:08
2311.16:025:08
2411.16:035:08
2511.16:035:07
2611.16:045:07
2711.16:045:07
2811.06:045:07
2911.06:055:07
3011.06:055:07
3111.06:055:07

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.46 kWh/m².

For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 6.56 kWh/m² in November across the year — May's 4.46 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in May

Hazard calendar for Caia

In seasonPeak

None of Caia's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Caia's monsoon runs December–March, when most of the year's rain falls.

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

Is May a good time to visit Caia?

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

6.7
Sightseeing
4th-best month of the year
8.6
Beach & pool
2nd-best month of the year

May is a reasonable time to visit Caia for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Caia in May

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

In May, Caia sees daytime highs around 29°C and nights near 19°C. Pack light clothes.

light clothes

UV index in Caia in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Caia peaks around January 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 16UV 14Jun 21UV 7
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug8Very high
Sep9Very high
Oct12Extreme
Nov12Extreme
Dec14Extreme

Air quality in Caia in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Caia is worst in September — around 44 µg/m³ PM2.5 (poor), about 6.7× the cleanest month (March, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 1343 µg/m³Mar 247 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar7Good
Apr7Good
May8Good
Jun9Good
Jul21Moderate
Aug37Poor
Sep44Poor
Oct28Moderate
Nov14Moderate
Dec7Good
Location & terrain

Where is Caia?

Caia sits at 17.8°S, 35.3°E, 35 m above sea level, in Mozambique. The nearest listed city is Morrumbala, 60 km away.

ChindeQuelimaneGorongosaNamacurraMilange

Topography around Caia

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

Within 3 km, the terrain around Caia has only modest variations in elevation — a maximum elevation change of 27 m around an average of 30 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 240 m; within 80 km, large variations in elevation — a maximum elevation change of 1,127 m.

The land around Caia is covered by cropland (45%) within 3 km, cropland (31%) and trees (24%) within 16 km, and trees (51%) within 80 km.

3 km
27 m
16 km
240 m
80 km
1,127 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Morrumbala 60 km · Marromeu 82 km · Nsanje 100 km · Chinde 145 km · Quelimane 164 km · Gorongosa 165 km · Namacurra 182 km · Milange 197 km

Mozambique travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / M
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$627
2025
Happiness
5.3 / 10
World Happiness, 2025
Safe drinking water
28%
of population, 2024
Homicide rate
3.6
per 100k, 2011
Road deaths
30
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 465
Religion
Catholic 27%Islam 19%Pentecostal 17%Saio/Zione 16%

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 Caia (-17.8203°, 35.3442°, elevation 35 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).