Rain Rain , or aqueous precipitation , ( TV : " The Stones of Blood " ) was a form of precipitation that came from rain cloud s , often connected to sadness . ( PROSE : " So Vile a Sin " ) Rain was formed from water at ground level , which then " goes all the way up into the sky , and then falls all the way back down on to me . " ( TV : " Everything Changes " ) It was frequently accompanied by thunder . ( PROSE : " Frayed " , " Loving the Alien " ) People rarely went outside while it rained . ( PROSE : " Pack Animals " ) Afterwards , stones would look " washed clean " ( PROSE : " The City of the Dead " ) and the dirt would turn to mud . ( PROSE : " The Shadow in the Glass " , " Loving the Alien " ) Carl Smithson found the sound of rain comforting " when you were tucked up and warm " in bed , but not so much from nearby . ( PROSE : " The Shadow in the Glass " ) Petrichor was the smell of dust after rain . ( TV : " The Doctor ' s Wife " ) Sarah Jane Smith loved " that fresh smell just after a rain shower " . ( TV : " The Android Invasion " ) Rain on Earth and other planets . According to Jack Harkness , oestrogen ( sometimes used as a form of contraceptive ) was in Earth ' s rain due to people taking oestrogen pills then going to the toilet causing it to enter into the water cycle . ( TV : " Everything Changes " ) As Amy Pond implied , it rained a lot in Scotland ; when it was raining in a car park , she deduce d that it must be Great Britain . ( PROSE : " Apollo 23 " ) It constantly rained in Cardiff , ( TV : " Everything Changes " , " Ghost Machine " , " They Keep Killing Suzie " , " Kiss Kiss , Bang Bang " , " Meat " , " Adam " ) as well as in Colchester . Once , Ian Chesterton spent " one of the worst weekends of my life " in Colchester with a girl ; it rained without endi . ( PROSE : " Byzantium ! " ) On another occasion , rain in Cardiff forced Nettie Williams to hide in a bus stop . ( TV : " From Out of the Rain " ) The presence of rain clouds told the Second Doctor that he , Jamie McCrimmon and Zoe Heriot had arrived in England during the summer . ( TV : " The Invasion " ) Wellington was also well - known for its rain ; hard , torrential rain was in fact dubbed " Wellington rain " . ( PROSE : " World Game " ) Sun shower s — " tiny droplets of cool rain falling down " — were found in rainforest s . Io ' s Kibero Patera tried to imitate this in their rain garden , although Leabie Forrester was reminded more of Little Chalfont , England . ( PROSE : " So Vile a Sin " ) The " Joseph Conrad " s food was produced hydroponically , and thus no precipitation was truly needed . Nevertheless , the ship ' s artificial sky rained " on special occasions " . The Lacaillan homeworld , however , rained " constantly " , the species needing the rain to survive . ( PROSE : " So Vile a Sin " ) It rained a lot on Grått , forcing the Tenth Doctor to employ an umbrella . ( COMIC : " The Whispering Gallery " ) Rain was relatively uncommon on the planet Iwa and , even when it came , it did so extraordinarily briefly . As a result , the air remained fairly saturated and humid . The occasional downpours usually lasted only a few minutes , sometimes even a few seconds . Olmec ' s theory was that this was because the inhabitants didn ' t grow much food ; they got most of their food from cans and packages . Chac was Iwa ' s rain god , who supposedly " didn ' t visit " the planet often . ( PROSE : " Frayed " ) The inhabitants of one planet believed that a sacrifice to the Rain God s was necessary to make it rain . Two natives almost sacrificed the Eleventh Doctor and River Song to these gods , but they escaped ; it began to rain regardless . ( HOMEVID : " Rain Gods " ) On Dellah , the needle of St Oscar ' s University ' s spaceport caused an increase in the local rainfall . ( PROSE : " Oh No It Isn ' t ! " ) Sally Sparrow first met Billy Shipton in the basement of Wester Drumlins while it was raining . After Billy got sent back by the Weeping Angel s , she met an older Billy during the same rain . Billy died when it ceased raining . ( TV : " Blink " ) Exceptional cases . When the Judoon used an HO scoop to transport the Royal Hope Hospital to the Moon , the rain went up around the hospital , while no precipitation fell anywhere else . It rained again on the Moon when the hospital made the return trip . ( TV : " Smith and Jones " ) When the TARDIS returned the planet Earth from the Medusa Cascade to the solar system , it rained a lot for a while on Earth afterwards due to atmospheric disturbances . ( TV : " Journey ' s End " ) The Doctor ' s sonic screwdriver was capable of causing rain via atmospheric excitation . ( COMIC : " Death to the Doctor ! " , " Mudshock " ) Clara Oswald ' s tears turned telepathic snow fall into salt y rain on Christmas 1892 . ( TV : " The Snowmen " ) Once , when Honoré Lechasseur set bottles of vodka free into the wind , it rained alcohol in London for a whole day . ( PROSE : " The Cabinet of Light " ) Cyber - pollen was used by in the form of rain in order to convert the dead into Cybermen . ( TV : " Death in Heaven " ) Predictions . Several species and objects were able to predict rainfall . " Dark cloud s " were a good indication that it would soon rain . ( PROSE : " Pack Animals " , " Byzantium ! " ) Bazoolium went cold before it was to rain . ( TV : " Army of Ghosts " ) After the Pyrovile s entered the Pompeii area , the soothsayer s , the augur s and the haruspex inherited psychic powers and could predict crops and rainfall with absolute precision . The Tenth Doctor claimed that always knowing this would make life boring . ( TV : " The Fires of Pompeii " ) Impact of rain . As Lucius Petrus Dextrus put it , " Rain pleases the soil " . ( TV : " The Fires of Pompeii " ) Rain was necessary to sustain plant life . Both the Tenth Doctor and Vincent Linfoot said , " A little rain never hurt anyone . " ( TV : " Gridlock " , AUDIO : " Plague of the Daleks " ) This , however , was most certainly not true . According to Blon Fel - Fotch Passameer - Day Slitheen , while it was raining , " visibility was low " — this could lead to car accident s , a fatal misstep or loss of electricity . ( TV : " Boom Town " , PROSE : " The City of the Dead " ) Excess rain could cause flood ing , ( TV : " The Invasion " ) which in turn might drown someone . ( TV : " Small Worlds " , PROSE : " The City of the Dead " ) Flooding would also turn dirt to mud , which would make travel difficult , particularly on unurbanised soil . ( PROSE : " The Shadow in the Glass " ) Usually being incredibly cold , rain could also cause numbness . ( PROSE : " The Cabinet of Light " ) Acid rain , rain that was unnaturally acid ic , could " melt " forest s . ( TV : " The Doctor , the Widow and the Wardrobe " ) The Dalek s made false , acidic rain that could turn humanoid s into zombie s fall on Stockbridge within its 45th century environment dome . ( AUDIO : " Plague of the Daleks " ) A species resembling rain could easily cut through human flesh . When the human colonists arrived on its planet , they drank the water , and were consequently kill ed by it . The rain would keep on falling until at least one or two people were killed . ( PROSE : " Pitter - Patter " ) References . " A little rain never hurt anyone " ( TV : " Gridlock " , AUDIO : " Plague of the Daleks " ) was not the only rain - related expression . The Eleventh Doctor once used the expression , " It never rains but it pours " to express how drastic bad things always were , such as not only a sinking Soviet submarine , but also a murderous Ice Warrior . ( TV : " Cold War " ) The First Doctor once told a " savage " that he ' d have him " right as rain " , meaning that he ' d fix him . ( TV : " The Savages " ) Owen Harper said the same thing to Gwen Cooper after describing how he ' d treat the Nostrovite wound that had impregnated her . ( TV : " Something Borrowed " ) Mike Yates likewise felt right as rain . ( TV : " The Green Death " ) A period of light rain was dubbed a " soft day " . " Anyone for tennis ? " was , according to the Fourth Doctor , an English expression meaning " Is anyone coming outdoors to get soaked ? " ( TV : " The Stones of Blood " ) " Breakfast In The Rain " is one of the known DVDs ( like " Falling Star " ) on which the Tenth Doctor hid messages for Sally Sparrow , which Larry Nightingale tried to puzzle out at Banto ' s DVD store . ( TV : " Blink " ) Legends . The Sun of Fire and Rain was one of the " Five Suns in the Sky " according to the Aztec s . ( TV : " The Aztecs " ) According to the legends of the Gond s , when the Krotons invaded their planet , they " caused a poisonous rain to fall " , killing hundreds of them . ( TV : " The Krotons " ) The Night Travellers were said to " come out of the rain " . Indeed , it always seemed to be raining when they attacked . ( TV : " From Out of the Rain " )